1. Naturally occurring chlorine that is put in pools is 75.53 percent"CI (mass = 34.969 amu) and 24.47 percent "CI (mass = 36.966 amu). Calculate the average atomic mass of chlorine. %3D

Q: estion 31 of 39 Element X forms three different compounds with element Y. Information about these…

A: There are three compounds which involve element X and Y.  We have given mass of element Y per gram…

Q: In 1961, scientists agreed that the atomic mass unit (amu)would be defined as the mass of an atom of…

A: Yes, the Avogadro number is changed and now becomes bigger than previously. Yes, the definition of a…

Q: How many atoms of C are in a sample 1.0 mol sample of C7H16C7H16? 9.73⋅10249.73⋅1024…

A: We have asked for the number of carbon atoms in 1 mole of C7H16

Q: In a lab experiment, 7.64 g of phosphorus reacts with bromine to form 66.77 g of phosphorus…

A: law of constant composition:-  a chemical compound always contains its constituent elements in fixed…

Q: 7. (NH)2Cr2O7 Element # atoms Atomic mass (g/mol) Total (g/mol) H. Cr Total Molar mass La Display…

A:

Q: According to the periodic table of elements, see Appendix C, the molar mass of copper is…

A: 1 mole = 6.022×1023 [ Avogadro's number ] The mass of one mole of atoms of an element is called…

Q: If the m. Wt. of BaSO4 = 233.42 g/mol %3D and m. Wt. of Na(SO4)2= 140.02 g/mol and wt of…

A:

Q: • How many moles of Na Cl contain 3.49 x1025 There are ions? Z moles of ions per mele oE Nasl, cund…

A: 1 mole = 6.022×1023 [ Avogadro's number ] Anything which is in the number of 6.022×1023 is said to…

Q: Calculate the mass percent of chlorine in CCl6

A: Mass percent is a percentage of amount of an atom in the given molecule.  The mass percent of…

Q: What about the percent N in the ammonia ion NH4+?

A: Ionic weight of ammonium ion, NH4+ is 18.04 amu.

Q: A 94.8 g sample of Fe;O4 reacts with 17.39 g of CO to form FeO and CO2. FegOals) + COlg)-- 3FEO(s) +…

A: Given chemical reaction :  Fe3O4 + CO ---> FeO + CO2

Q: the atomic masses of 10B and 11 B are 10.012938 and 11.009305 amu, respectfully. The average atomic…

A:

Q: 1 Pb(NO3)2 + Na,SO4 → 1 PBSO, + NaNO3 - REACTANTS PRODUCTS Element / Polyatomic lon How Many?…

A: Balanced reaction is:  1 Pb(NO3)2 + 1 Na2SO4                            ----------> 1 PbSO4 + 2…

Q: A sample of trifluoroacetic acid, C,HF,O2, contains 72.1 g of fluorine. Calculate the mass of the…

A: 1- First calculate the moles of fluorine atoms :  We know that,  moles of F = ( mass / molar atomic…

Q: For the following reaction: NaN3=Na+N2 if 45.0 g of NaN3 decomposed, how many grams of sodium, and…

A: The given balanced reaction is as follows, The given grams of NaN3 is converted into moles first.

Q: How many total atoms are in 0.910 g of P,0,? total atoms:

A:

Q: Naturally occurring chlorine consists of 35Cl (mass 34.96885 amu) and 37Cl (mass 36.96590 amu), with…

A: Chlorine has two isotopes, Cl35 and Cl37.

Q: If 10 magnesium(Mg) atoms and 10 chlorine(Cl) atoms were to bump into each other, coukd they combine…

A: If 10 atoms of magnesium and 10 atoms of chlorine bump into each other, they will combine to form a…

Q: 2. A sample of 2 tsp of sugar (C12H22O11) weighs 9.00 g. a. Record each step needed to calculate the…

A: a. Given that: Mass of sugar = 9.00 g. Molar mass of C12H22O11 = 12×12 + 22×1 + 11×16Molar mass of…

Q: Tin has 10 stableisotopes. The heaviest, 124Sn, makes up 5.80% of naturally occurring tin atoms. How…

A: Given that,  124Sn isotope makes up 5.80% of naturally occuring tin atoms  Mass of tin sample = 57.0…

Q: Diamond is one form of an elemental carbon. An engagement ring contains a diamond weighing 1.25…

A: Given, Diamond is one form of an elemental carbon and an engagementring contains a diamond weighing…

Q: [References] A mixture of CuSO, and CUSO, 5 H,0 has a mass of 1.215 g. After heating to drive off…

A:

Q: A certain compound X is composed of 70.53% carbon, 13.02% hydrogen, and the remainder is nitrogen.…

A: Given values: Percentage of carbon = 70.53 % Percentage of hydrogen = 13.02 % Percentage of nitrogen…

Q: ow many total atoms of Ba I ow many total atoms of N ow many total atoms of O ow many total atoms of…

A: Solution- In the below given -  Total atoms of Ba = 3 Total atoms of N =  6 Total atoms of O = 26

Q: Two thirds of the atom in a molecule of water is hydrogen. What percentage weight of a water…

A: Given: Hydrogen atoms in a water molecule = 2/3 Atomic weight of hydrogen = 1.008 g/mol Atomic…

Q: (c) 54.5% C, 9.2% H, and 36.3% O by mass

A: given :-  percentage composition of C = 54.5%  percentage composition of H = 9.2%  percentage…

Q: What is the percent by mass of chromium (atomic mass = 52.00 g/mol) in Cr2S3 (mm = 200.20 g/mol)?…

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Q: A sample of Al weighs 52.0 grams. Will a sample of Hg that contains the same number of atoms weigh…

A:

Q: Consider Cl2+F2=CLF3 (ΔH°f = -164.65 kJ/mol) . 1. If 42 g of F2 is combined with 142 g of Cl2, how…

A: Balanced chemical equation: Cl2  +   3F2  ------>   2ClF3 Number of moles = Mass/molar mass

Q: A 85.6 g sample of Fe304 reacts with 18.2 g of CO to form FeO and CO2. FezO4(s) + CO(g) 3FEO(s) +…

A:

Q: 26. 78) 6.347 x 10°atoms of nickel(III) sulfide has a mass of

A: Given, number of atoms of nickel(III) sulfide =6.347×1026 atomswe are asked to calculate the mass of…

Q: 9. Using the following reaction 2NaBr +CaF, →2NAF+ CaBr2 If 6 moles of CaF2 were added, what mass of…

A: Given  moles of CaF2 = 6 moles Molar mass of  CaBr2 = 199.9 gm/mole Mass of CaBr2= ?

Q: In a lab experiment, 7.2 g of Mg reacts with sulfur to form 16.7 g of magnesium sulfide. (a) Use…

A:

Q: A sample of Fe weighs 82.9 grams. Will a sample of Ba that contains the same number of atoms weigh…

A:

Q: Calculate the mass percent of C in CH4 (you can use 1 mole of methane as the basis for your…

A:

Q: Mass of Crucible and Cover= 62.17 g Mass of ……… and solid hydrate= 63.28 g Mass of ………. And residue=…

A: Note - Since you have posted a question with multiple sub-parts, we will solve the first three…

Q: The molar mass of an element is numerically equivalent to what? b. 1 mole a. 1 amu c. its atomic…

A: Molar mass is the sum of mass of all atoms and the unit of the molar mass is grams or g

Q: Upon decomposition, one sample of magnesium fluoride produces 1.66 kg of magnesium and 2.58 kg of…

A: The values are given as follows:

Q: How many C atoms are there in a 41.1 gram sample of C ? atoms

A:

Q: You take three compounds, each consisting of two elements (X, Y, and/or Z), and decompose them to…

A: Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Q: 30. A sample of a compound containing only S and Cl contains 2.72g S and 6.04g Cl. Another sample of…

A: given data = a sample compound only containing S and Cl S = 2.72 g, Cl = 6.04 g another sample of…

Q: What is the average atomic mass of a mystery substance that is 27.5 at a mass of 37g and 72.5% at a…

A: Given: Mass =37 g  Percentage %=27.5 % Mass =38 Percentage % =72.5% Average mass=?

Q: Naturally occurring chlorine that is put in pools is 75.53 percent 35Cl (mass = 34.969 amu) and…

A: Given : There are total 2 naturally occurring isotopes of chlorine Mass of isotope 1 i.e 35Cl =…

Q: 19. A certain sample of dichlorine heptoxide consists of 4200 oxygen atoms combined with chlorine…

A: According to the given data the sample is dichlorine heptoxide. The sample consists of a total of…

Q: Mass of ground pill Volume of KMNO, Moles of KMNO, Moles of Fe2+ Moles of FeSO, • 7H,O Mass of FeSO,…

A: Given: Molarity of KMnO4 = 0.0114809 M Balanced reaction : MnO4− + 5 Fe2+ + 8 H+ → Mn2+ + 5 Fe3+ + 4…

Q: 3009) + FeaOo6) → 2 Fecgy t 3 COa) g of CO(28.019/mol) rancts w/37.78g of FegO, (159.76 glmol), how…

A: The balanced reaction taking place is given as, => 3 CO (g) + Fe2O3 (s) ------> 2 Fe (s) + 3…

Q: To prevent the presence of air, noble gases are placed over highly reactive to act as inert…

A: The partial pressure of a gas in a mixture of gases is equal to the total pressure multiplied by the…

Q: Calculate the mass of 1.00×10241.00×1024 (a septillion) molecules of wate

A: We know that there are two hydrogen atoms and one oxygen atom for every H20 molecule. So, the molar…

Q: 4. Calculating Mass of an Element in a Compound. Pitchblende is the most important compound of…

A:

Mass Spectrometry

This process is an instrumental method in which a sample is changed to fast moving positive ions by electron bombardment. The charged particles vary due to their different mass to charge ratio and are estimated with the help of this difference. It is also called mass spectroscopy.