Reference no: EM132418384

Calculate the quantities indicated. Report your answers with proper significant figures units, and substance.

a.) How many moles of silver dichromate are in a 0.3462 g sample? How many formula units (molecules)?

b.) How many grams of diphosphorus heptoxide are in a sample with 2.13 x 10^25 molecules of diphosphorus heptoxide?

c.) How many molecules of perchloric acid are in 8.30 moles?

d.) How many moles of calcium chloride are in 30 mg sample? How many moles of chloride ions are in the sample? How many chloride ions are in the sample?

e.) 84.250 moles of oxygen gas contains how many molecules?

f.) How many atoms of polonium are in 0.041 nmol of polonium? Note: "nmol" includes a prefix.

g.) Which compound contains a greater percentage of gold ---gold (III) hydroxide or gold (I) sulfide? Support your response with a calculation.

h.) Consider 10.00 g each of iron (III) nitrate and iron (II) nitrate. Which one of these samples contains the greater number of moles of compound? Support your answer with a calculation.