d. ion-dipole forces Number of atoms of arsenic = 6.0210 atoms. The atomic weight can change because it depends on our understanding of how much of each isotope of an element exists. The times is like overweight. a. a. H3C-CH2-C-OH e. a total of 8 4 = 32 electron dots. Select one: The axis of the first filter (filter A) makes an angle of 18 with the vertical and the axis of the second filter (filter B) makes an angle of 37 with the vertical. a. a. BrF A given number of Arsenic atoms was 2.11e21 (or 2.11x10^21, e and x10^# mean the same thing). So now we know the mass of sodium bicarbonate. b. Buckminsterfullerene Select one: Explanation: In order to determine the mass of one atom of an element, you must determine its molar mass, which is its atomic weight on the periodic table in g/mol, and you need to know the relationship between moles and the number of atoms: 1 mol of atoms = 6.022 1023 atoms. 0.67 The correct answer is: an effective antidote for heavy metal poisoning (e.g., Pb2+ and Hg2+). Complete the table below:if " = ICu = 2 =)(- + f-")fnifn 2 3all steps1265Theorem:[Calculus, infnite power series for e ]e" =CXofinite number of terms from that infinite series, s0 uses polynomial Pn(z) of some degree - computer Or calculator can only usee" ~ Pn(z) = Ci= 1We will focus on getting good approximation of below:=e-1 ~ Pa(-l)plz)Pn(-1)rounded B(-I- 10000 +0.6321 0.0000 0.3679 0.5000 +0.1321 00S45 +20071 0.3665 3,00121+I 1+2+ 2*, (2 + 2 +*)4 1+2+ =(6+ 62+314 +1&quo. Select one: This means that its atomic weight is 58.85 g/mol, the atomic weight of cobalt. Element e. polyethylene. d. system heats up but there is not change in the energy of surroundings. Select one: Prove that j P.com jP6?P. Project The required tasks are detailed below: (1) Prepare vertical common-size income statements and balance sheets for both companies. c. Mass When you visit the site, Dotdash Meredith and its partners may store or retrieve information on your browser, mostly in the form of cookies. a. So according to this, balanced the chemical in question, we can't see the racial sodium bicarbonate with hydrogen With with hydrochloric acid is well, is one to work. e. 165.93 mmHg. c. Polystyrene c. 2Na(s) + Cu2+(aq) Cu(s) + 2Na+(aq) The same process works for finding the mass of one molecule. We need to divide that by 58.32 cramps. a. the unit cell Thus, one mole of sodium weighs 23.0 g or one tenth of a mole of sodium weighs 2.3 g. 4. d. Se 3.0 10-2 Select one: So it's 0.60 605 g divided by the molar mass of so forget asset, which is nine 8.08 g per moon. Select one: Which one of these elements is not found in proteins? From the formula (H2O), you know there are two hydrogen atoms and one oxygen atom. e. The solvent, Since zirconium is a metal, ZrO2 is expected to be a/an _____ oxide. *Find thrce rcal numbers whose sum is and the sum of whosc squares is ;s small as possible. Let f be an integrable function on [a,b]: Then, forae.x (a,b), 3lim| [3t Prove _ mattux = nol solved correclly Expzin tho mislake and find Iho correcl solution Assume that the indicaled inverses exisf The equation XAEB,XeA-'0 Whal % tha mistake? b. BrF2 e. AlCl3, Below is a representation of pure liquid HX, an amphoteric substance, at equilibrium. Here's how to use the information to determine the mass of a single atom. (Each circle represents 1.0 10-3 mol of atoms, and the volume of the box is 1.0 L.)What is the autoionization constant for HX? c. P A. ;^ +le As Fsjy< / c^A-ctive hollaw spbcre ~4h c^ 4^ 15 ~karjed 4dius b Ad 34tl~r Gad: Ce ce ctrie {^aec whole Jstcm C> 0 eleet(-stati eqliyi= WLe^ 4k{ 1-) Usia= 64us$` $ J (r < 4 ) (4 < 721) (bzr< s) 44 (o>c) eleetc fic |d, tne rej"s On ; fer fvA +h6 4e 4 O^ +le Fia tke in Ju#o charje > Pe| Jn' ii-) ~ +4a hollaw sphere 'caer 4 o4ter On Ju. 0.0169 Select one: 1/2gt? Choose the correct answer bolwMired the koft mulplicwton property and Iha rkazht mutipiicallon poporty 0 B The mainx= should have been sublracled hom bolh sidles Ilo uqualion Tha oquution ahould have beon multiphed b; Iniland 0la 0 0 "Quaton should have beon mubplled by Insteadal AFind Ihe contec soution. a. polybutylene. An empty flask's mass is 17.4916 g, and its mass is 43.9616 g when filled with water at 20.0C (density = 0.9982 g/mL). Group 2A Select one: )Find the probability that a package will weight between .8954g and .9456g. The maximum number of electrons that can occupy an energy level described by the principal quantum number, n, is d. I3+ a. Hydration So,. The abundance of arsenic in the Earth's crust is about five grams per ton; . So we have HCL reaction with sodium bicarbonate, which is in a h C oath c 03 and this will produce carbonic acid, which will break down further. ;^ +le As Fsjy< / c^A-ctive hollaw spbcre ~4h c^ 4^ 15 ~karjed 4dius b Ad 34tl~r Gad: Ce ce ctrie {^aec whole Jstcm C> 0 eleet(-stati eqliyi= WLe^ 4k{ 1-) Usia= 64us$` $ J 2. However, its laboratory use has been restricted because it dehydrates on standing and can become shock sensitive. a. e. 18.0 g, A certain compound of bromine and fluorine is used to make UF6, which is an important chemical in the processing and reprocessing of nuclear fuel. d. Rubber & polyester 40.8C b. Polyvinyl chloride Select one: The correct answer is: 0.75 mol of a volatile compound in 750 g of ethanol, Which is a Lewis base? It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance. The vapor pressure of a solvent over a solution decreases as its mole fraction increases. There are seven non-metals that are diatomic. 7 moles Arsenic to grams = 524.4512 grams 1 How? Select one: a. Polystyrene-polybutadiene 3. b. surroundings heat up, but there is no change in system's energy. It has an acid dissociation constant of 0.42. The units of moles of arsenic (mol As) cancel. So here we see that mess of sitting bicarbonate cancels moles of sitting bicarbonate, cancels it molds of HCL cancels and we're left with 1.1 grands of HCL.. A mixture is a substance made by combing 2+ different materials in such a way that no chemical reaction . Show that a. P.(-x) =(-1)*P(x) b. c. ionic bonding d. Specific Heat Select one: (0) - (-1) 2(!) -A-B-A-B-A-B-A-B-A-B- a. R-CH2-C-NH2 e. None of the answers is correct. c. A salt bridge insulates the two electrodes. Read the article below and answer the question: UAB Highlands shooting: Longtime nursing superviso M&M Plain candies have a mean weight of .9147g and a standard deviation of .0369g. e. Sol-gel, Which of the following is a natural polymer? e. None of these species is an ion. The nucleus is composed of protons and neutrons. b. c. P(0) - 0 3. Circle correct conclusion_There is sufficient evidence to support the alternative hypothesis_ 2) There is insufficient evidence to support the alternative hypothesis_ 3) There is sufficient evidence to support the null hypothesis.There is insufficient evidence t0 support the null hypothesis. 1.48 10-24 g c. solids (0) - (-1) 2(!) Create your. June 29, 2022; creative careers quiz; ken thompson net worth unix . a. Cu b. e reacted, what mass of calcium fluoride will be produced? Now, in order to go from moles to grams, you need to use the molar mass of the compound, i.e. b. London dispersion forces a. c. 83Li b. Absolutely not Definitely yes 1 So, we need to multiply here by the molar mass of magnesium sulfite Which is 1- 0.36 g per mole. e. 0.1 M NaCl, Below is a diagram representing a solvent A(l) in a 1-L beaker, and a solute X dissolved in the solvent. c. 15 torr c. J. J. Thomson You can find out more about our use, change your default settings, and withdraw your consent at any time with effect for the future by visiting Cookies Settings, which can also be found in the footer of the site. d. 712 J/mol 154 torr Question 2 (10 marks)Use the binomial series to find the first four non-zero terms of (1 + x*)3/2,[4 Marks](i) Find the error using the terms found in (i) at x 0.2,[3 Marks](iii) The expressioncan be expressed in the form:a(x - b)? a. Hexane-heptane Select one: In which of the following compounds will the molecules not form hydrogen bonds with each other? So now we're going to wear a gun problem. . b. Robert Millikan And then just compare this mass of magnesium sulfate With the massive mechanisms offer that will form if we start off with 0.605 g of so for a gas it. 1.8 torr 109 mmHg The molar mass of an element is found on the periodic table, and it is the element's atomic weight in grams/mole (g/mol). e. -198 kJ/mol, What is the oxidizing agent in the (unbalanced) reaction?Cu(s) + H+(aq) + NO3-(aq) NO(g) + H2O(l) + Cu2+(aq) Select one: Temperature b. PVC (The mass of one mole of arsenic is (The mass of one mole of arsenic is A: Answer:- Firstly using the given number of atoms of arsenic, moles are calculated. a. NaCl b. If this solution is ideal, its total vapor pressure at 20C is b. water d. 0.855 b. H2(g), O2(g) Please consider the following alkane. b. Indicate which one, show Oojc - mechanism for the reaction, and explain your reasoning pibal notlo using no more than two sentences. O d. 4. c. Hg(l), NaCl(s) Select one: Please give the best Newman projection looking down C8-C9. b. Alkanation a. amide. Discuss its associated religious connections. https://www.thoughtco.com/avogadros-number-example-chemistry-problem-609541 (accessed March 4, 2023). IfX is the associated random variable, what is E(X)? 12. b. Select one: d. 0.21 b. The formula weight is simply the weight in atomic mass units of all the atoms in a given formula. Which of the following is the empirical formula for hexane, C6H14? a. e. 8. 0.1 M CaCl2 b. KMnO4 Arsenic, Smaller mass is 74.9 grams per mole. 6 moles Arsenic to grams = 449.5296 grams. c. Silk d. 10 (You can select multiple answers if you think so) Your answer: Volumetric flask is used for preparing solutions and it has moderate estimate of the volume. b. NaNO2 a. system heats up while surroundings lose energy. Select all that apply OH, Question 5 The following molecule can be found in two forms: IR,2S,SR- stereoisomer and 1S,2R,SR-stereoisomer (OH functional group is on carbon 1) Draw both structures in planar (2D) and all chair conformations. b. Polyester d. the liquid level in a capillary tube will drop below the surrounding liquid and the surface in the capillary tube will have a concave meniscus. b. ionic d. 376 mmHg Turning hair yellow with bleach Select one: Select one: b. H+ c. Polypropylene d. 5.44 mol d. H3PO4 c. Group 3A So you want to make this 16 So there will also be 12 hydrogen on this side and all this equation should be balanced. What is the purpose of a salt bridge in an electrochemical cell? Id give a reason for your bo cac" the defir Biochem/pH review 1. Avogadro's number is one of the most important constants used in chemistry. b. Emulsion 2 moles Arsenic to grams = 149.8432 grams. One unified atomic mass unit is approximately the mass of one nucleon (either a single proton or neutron) and is numerically equivalent to 1 g/mol. c. BaO Answer and Explanation: 1 Become a Study.com member to unlock this answer! a. C12H28 Magnesium hydroxide (Mg(OH)), as Milk of Magnesia' can be used t0 neutralize excess stomach acid, represented by HClaq) as per the following reaction Mg(OH)z(s) + 2HClaq) MgClz(aq) + 2H-O() When 25.00 g of HCI are combined with 38 g of Mg(OH)z, what mass of MgClz can be produced Theoretical yield of MgClz Name the Limiting Reactant. d. 2Al3+(aq) + 3Cu(s) 3Cu2+(aq) + 2Al(s) What is meant by the prefix "poly"? d. -1.42 103 kJ/mol d. a total of 8 2 = 16 electron dots. e. Cl, Which element has the following ground-state electron configuration? Which is the strongest acid? b. Al(s) + 3Na+(aq) Al3+(aq) + 3Na(s) a. e. one methyl group and one amide group. 7.4 yr Find all second-order partial derivatives of the given function:2 = 6xln(xty), Wrilo and simplfy Iho Intogrnl thol Oros Iho arc Ionguh ol tho lollowing curvo on Iho pivon Inlocvul nocotanry: 4to {ochnokrly lo nvalunto approxrato Iho intogml(3*), for 0sx* 2Sot up tho intagral Ihat gos Iho ara longth &l Iho curvo; Soloct tho corroct colco bolow nnd 6il In tho unorur bax la comploto your cholco. N = 8.03 10^28 atoms The mass of an average blueberry is 0.72 g and the mass of an automobile is 2000 kg . Select one: -$1,372 C. -$1,5 Cx' , 0sxs3 Let f(x) = 0, elsewhere 5. m (As) = 238 mol As 74.922 g As/mol As 17300 g As (rounded to three significant figure) Your response is private Was this worth your time? c. As d. Soccerballene -True. Find the mass of 4.8moles of iron. What is the average mass, in grams, of one arsenic atom? -A-A-B-B-B-A-A-B-B-B- has a total valence state of 0 (3x(+1) for the hydrogen atoms; 1x(+3) for the arsenic(III) atom; 3x(-2) for the oxygen atoms = 3+3-6 = 0). b. Hypothesis e. All are of equal strength. Brz HzO, Question Which of the following statements is true ? d. Br3F c. 9.27 10-23 g 12. a-How many atoms are contained in 28.0 grams of nitrogen? Thank you for taking initiative to check out Brainly and for posting your first question! The . The atomic mass is used to covert between grams and moles. a. c. 3.45 kJ/mol Phexane = 400.0 torr at 49.6C. 2.74 106 s-1 Ozone (O3) in the atmosphere can react with nitric oxide (NO) as follows.O3(g) + NO(g) NO2(g) + O2(g). So this is 1/1. A salt bridge carries electrons between the cathode and anode. So four. What is the mass, in grams, of #3.75 xx 10^15# atoms of gold? Select one: b. two amino groups and one carboxylic acid group. c. 518 mL b. d. 59.1% b. Roasting e. octane. (For ethanol, Kb = 1.22C/m; boiling point of pure ethanol = 78.37C) e. Cu2+. d. Period 7 a. It is the number of particles in a single mole of a material, based on the number of atoms in exactly 12 grams of the isotope carbon-12. Before we can say what mass of magnesium sulfate will be formed in the end. Because atoms are electrically neutral, the number of positively charged protons must be equal to the number of negatively charged electrons. The correct answer is: Try different coefficients and subscripts to balance the number of atoms. Select one: d. 78.5 g Use Rodrigue's formula to calculate P (4) Circle correct conclusion_ There is sufficient evidence to support the alternative hypothesis_ 2) There is insufficient evidence to support the alternative hypothesis_ 3) There is sufficient evidence to support the null hypothesis. Arsenic is a metal. So first we need to go from grams to moles. Does this match the bond order predicted by the electron-dot structure? The atomic mass is the mass of an atom. one mole = 6.0210 atoms So number of moles of arsenic are 1 mol. Assuming some charcoal from a campfire 29,000 years old was found, what fraction of the original C-14 would remain today? c. HIO3 So this limits the amount of product that can be formed. e. 9.99 kJ/mol. Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. B)Electronegativity. a. Select one: e. n2. (You can select multiple answers if you think so) Your answer: Actual yield is calculated experimentally and gives an idea about the succeed of an experiment when compared t0 theoretical yield. The correct answer is: its ability to catenate. e. 2.27 mol, Methanol (CH3OH) is converted to bromomethane (CH3Br) as follows:CH3OH + HBr CH3Br + H2O Grams to Atoms Calculator is a free online tool that displays the conversion from grams to atoms for the particle. b. Sb a. Dehydration polymerization 4s Heating function of the hot plate is used in "changes of state", B) One of these two molecules will undergo E2 elimination "Q reaction 7000 times faster. b. My name is agenthammerx, a Master Answerer and Engagement Team Member here on Brainly. c. NH4NO3 0.022 M b. By definition, one atom of carbon-12 is assigned a mass of exactly 12 atomic mass units ( amu). b. what is the mass in grams of one arsenic atom. And we saw that in the case of the sulphuric acid um This limits the mass of magnesium sulfate that can form. Discuss circumcision and the arguments for and against it. 371 mL 61 g c. 5p c. Ester d. C6H6 e. molecular solids, Use the following data to determine the molar heat of vaporization of chlorine gas. a. Density What is your total dollar return on this investment? Solve the IVP Q2) Solve the IVP. What is the mole fraction of the solute X in this solution? Now to find the actual limiting, we actually want to divide by the balance equation numbers at the top and compare them. 1.24 lb (Typo an Dc nnskor )0 A[0 8,Jo)=Tno nrc Ionoth & tho Ourvo Is opproxemntely (Round Uuteu docmal acos nonded )Click %0 solect your unowor(s). Which oxide is an amphoteric oxide? A year ago, you purchased 300 shares of Stellar Wood Products, Inc. stock at a Cx' , 0sxs3 Let f(x) = 0, elsewhere5.Do the following by hand, without using RFor what value of C is fa probability density function? The segment e. Ernest Rutherford, Potassium permanganate is a strong oxidizer that reacts explosively with easily oxidized materials. d. 3.8 x 103 g d. Stonewaring Select one: The unit of measure for mass is the atomic mass unit (amu). A year ago, you purchased 300 shares of Stellar Wood Products, Inc. stock at a price of $8.62 per share. What is its formula? b. H-F In this case, add up all the atomic masses in the chemical formula and divide by Avogadro's number. it tells us how many grams are in one mole of that substance. B. a. 0035 mols of arsenic, this conversion changes the individual number of atoms, into the units of mols. 2.35 10-11 M 3 b. e. Heterogeneous mixture. a. Gases expand as their temperature increases because the gas molecules are moving more rapidly. Select all that apply: The halogen atom is nucleophilic The carbon atom attached to the magnesium reacts as carbanion: The carbon-magnesium bond is polarized with partial negative charge on carbon: The magnesium atom is less electronegative than the carbon atom: The carbon atom bonded to the magnesium is electrophilic: (2 points): Draw the products for the reaction and then draw the mechanism for the reaction below: In mechanisms, you must show all intermediates, lone pairs, formal charges and curved electron flow arrows. c. He All right, So we need to substitute here. c. Br2F3 I want to know if she was a four on the bottom to cancel it out for every three moles of H two. c. a double covalent bond. c. 9.73 kg c. Germanium, Ge, Z = 32 Which one of the following is a strong acid? 5 moles Arsenic to grams = 374.608 grams. Um So for acid and from this point we can calculate the mass of magnesium sulfate by multiplying with the molar mass of magnesium sulfur, which we said is 1 20 .36 g per month. (c = 3.00 108 m/s; h = 6.63 10-34 J s; NA = 6.022 1023 moles-1) Molar Mass: the mass of one mole of an element CONVERSION FACTORS: 1 mole = 6.02 x 1023 atoms 1 mole = atomic mass (g) . (NA = 6.022 x 1023 mol ) Multiple Choice o o 1.24 x 10-22 33.00 < Prev 8 of 25 Next > J BABE SPECIK This problem has been solved! c. The vapor pressure of a solvent over a solution is less than that of pure solvent. a. c. R-CH-OH Isotopes are nuclides that have the same atomic number and are therefore the same element, but differ in the number of neutrons. d. CH2.3 4 It's easy to find the mass of a single atom using Avogadro's number. compounds are 2 or more elements that are chemically combined; ex-iron and water form rust. Atomic Number of Arsenic. a. Select one: Group 1A Capillary tube is used in "coffee cUp calorimeter" experiment Indicator is used in "stoichiometry" experiment Mass balance is used in all CHEICOI laboratory experiments. e. 0.7917 kg, Which of the following aqueous solutions should demonstrate the most ideal behavior? Arsenic-72, -74, and -76 have been used in medical diagnostic procedures. b. May anybody who is good at the Human Resources in Health Care Organizations class help me with the assignment below. 4.0 10-3 It makes working with atoms easier because we work with moles rather than individual atoms. 2Na+(aq) + Cu(s) Cu2+(aq) + 2Na(s) 21.9 kJ/mol e. None of the will occur. Select one: a. You use the periodic table to look up the mass of each atom (H is 1.01 and O is 16.00). HCL. Q: Determine the mass in grams of 5.53 1021 atoms of arsenic. You want to first convert the number of atoms to mols of atoms. Pethanol = 50.0 torr at 25C. c. 0.145 a. Select one: Only one stable isotope of arsenic, that of mass 75, occurs in nature. Today, you sold all of your shares for $4.80 per share. e. basic, Picric acid has been used in the leather industry and in etching copper. Helmenstine, Anne Marie, Ph.D. (2021, June 2). Select one: Select one: Using dimensional analysis: . 100 g CH4 e. Prediction, Which of the following cannot be separated into simpler substances by chemical means? In acid base titration experiment our scope is finding unknown concentration of an acid or base_ In the coffee cup experiment; enctgy ' change is identified when the indicator changes its colour. Which of these pairs consists of isoelectronic species? Select one: Mass numbers of typical isotopes of Zinc are 64; 66-68; 70. a. d. NO The correct answer is: I will list five. The correct answer is: atomic mass. 15.69moles CH3OH 32.04 g 1mole CH3OH = 50.3 g . c. NO3- d. Change only the coefficients to balance the number of atoms. So let's start with the H two S. 04 1st. So we need to identify the limiting reactant. A)Atomic Radius. c. -A-A-A-B-B-B-A-A-A-B-B-B- b. Cl- and S One atomic mass unit is equal to 1.66 x 10-24 grams. Select one: e. 15.85, What is [OH-] for a solution at 25C that has [H3O+] = 2.35 10-3 M? (90 points) OTL DAVFLR wcu OuDonq woiem Iliw bqjoqarion doidw %6> # (4 Cl ClyIno hrus; Iuwoqto) t1 matncdosm Cl_ Cl Cle (ataioq 08) CI' "Cl Cl " "'Cl Cl GHD0 HO HOcHO KOo Ibem, O0 :dj Ji '9.1) MA76 (elrtioq 0a) {ne B) (60 points) VIEIb brc; 210119897 ol od 10 Sbod NaSH Ta[ eawot DMF, Question 2 Whatis the major product of the 'following reaction? Px. E = You can see that this one this number is obviously don't be smaller. Sxy +y2 7. c. 12.15 Assume that the solute addition does not significantly change the volume of liquid in the beaker. A) 3.00 g B) 174 g C) 363 g D) 1.81 u 1024 g E) 40.3 g C) 363g Select the compound in which sulfur has its highest possible oxidation number. Select one: a. all the columns for the element calcium are filled out correctly. d. Many 2. Which of the following is a molecular formula for a compound with an empirical formula of CH? c. Firing a. C2H6 A) 5.48 10 -23 g B) 33.0 g C) 74.9 g D) 1.24 10 -22 g E) 8.04 10 21 g Ans: D Category: Easy Section: 3.2 11. What is the coefficient of H2O when the following equation is properly balanced with the smallest set of whole numbers?___ Al4C3 + ___ H2O ___ Al(OH)3 + ___ CH4