Chemistry, 14.12.2020 07:50 Lizzy527663

Calculating Mass, Moles, Atoms, and Molecules Worksheet DIRECTIONS: Using the masses on the periodic table, calculate the desired quantity.

1.1.5413×1017 atoms of Ca to grams

2.95.45 grams of SF4 to moles

3.95.6 moles of Sr to grams

4.34.35 moles of Ga to atoms

5.544.6 moles of DyPO4 to grams

6.780.5 grams of Zn5(P3O10)2 to moles

7.2.25104 moles of BF3 to molecules

8.4.3453×1022 molecules As2O5 to grams

9.75.56 moles of Al(NO3)3 to grams

10.Chloral hydrate (C2H3O2Cl3) was used as a sedative and hypnotic.

a. What is the molar mass of chloral hydrate?

b. How many moles of chloral hydrate are in 500.0 grams chloral hydrate?

c. How many atoms of chlorine are in 500.0 grams of chloral hydrate?

d. What mass of chloral hydrate would contain 1.600×1022 atoms of oxygen?

Answers: 2

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