For the compound Ge [ S ( CH 2 ) 4 CH 2 ] 4 determine a. the total number of atoms in one formula unit b. the ratio, by number, of C atoms to H atoms c. the ratio, by mass, of Ge to S d. the number of g S in 1 mol of the compound e. the number of C atoms in 33.10 g of the compound
For the compound Ge [ S ( CH 2 ) 4 CH 2 ] 4 determine a. the total number of atoms in one formula unit b. the ratio, by number, of C atoms to H atoms c. the ratio, by mass, of Ge to S d. the number of g S in 1 mol of the compound e. the number of C atoms in 33.10 g of the compound
For the compound
Ge
[
S
(
CH
2
)
4
CH
2
]
4
determine a. the total number of atoms in one formula unit b. the ratio, by number, of C atoms to H atoms c. the ratio, by mass, of Ge to S d. the number of g S in 1 mol of the compound e. the number of C atoms in 33.10 g of the compound
For all problems involving calculations, show your work. Carry the units through each
calculation and follow significant figure rules. Practice on scratch paper then here.
1. Perform the following:
Write the formula for copper (II) phosphate..
b. Calculate the molecular weight for copper (11) phosphate.
c. Calculate the number of moles of copper (II) phosphate in 129.4 g of copper (II) phosphate
d. Calculate the total number of atoms of phosphorus in 129.4 g of copper (II) phosphate.
97
Sodium sulfate is used in the manufacture of detergents.a. Identify each of the component elements of sodium sulfate, and write the compound’s chemical formula.b. Identify the compound as ionic or covalent.c. Calculate the percent by mass of each element in sodium sulfate.
Indicate whether each of the following statements is true or false. Explain your reasoning for each answer.
a. One mole of NH3 weighs more than one mole of H2O. b.There are more carbon atoms in 48 grams of CO2 than in12 grams of a diamond (a pure form of carbon).
b.There is an equal number of nitrogen atoms in one mole of NH3 and one mole of N2.
c.The number of Cu atoms in100 grams of pure copper metal is the same as the number of atoms in100 grams of cupric oxide.
d.The number of Ni atoms in100moles of nickel(II)chloride.
e.There are more hydrogen atoms in 2 moles of NH3 than in 2 moles of CH4.
Chapter 3 Solutions
General Chemistry: Principles and Modern Applications (11th Edition)
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Step by Step Stoichiometry Practice Problems | How to Pass ChemistryMole Conversions Made Easy: How to Convert Between Grams and Moles; Author: Ketzbook;https://www.youtube.com/watch?v=b2raanVWU6c;License: Standard YouTube License, CC-BY