Part of a whole expressed in hundredths is referred to as ____.

Which of the following best describes the ways that we can calculate percent composition for a substance?

What is the percentage of Ca in CaCO₃?

What is the percentage of sodium in sodium chlorate?

What is the percentage of strontium in strontium nitrate?

What is the percentage of copper in copper(II) phosphate?

A compound is made up of 8.604 g nitrogen, 7.376 g C, and 24.016 g K.  What is the percentage of potassium in the sample of this compound?

You are working with a 37.50 g sample of a chromium-containing compound.  Determine the percent composition in the sample if 19.01 g of the sample is composed of oxygen, 4.76 g is carbon, and the remainder is chromium.  Type your answer to two decimal places.  Do not put the percent sign.

What is the percentage of oxygen in CaCO₃?

What is the percentage of phosphorus in copper(II) phosphate?

Sodium chloride is 39.34% sodium and 60.66% chlorine, by mass.  How much sodium is in a 125.8 g sample of sodium chloride?  Write your answer to two decimal places, and be sure to include units.

Sodium chloride is 39.34% sodium and 60.66% chlorine, by mass.  How much chlorine is in a 125.8 g sample of sodium chloride?  Write your answer to two decimal places, and be sure to include units.

Magnesium phosphate is 27.74% magnesium, 48.69% oxygen, and the remainder is phosphorus, by mass.  How much magnesium is in a 221.3 g sample of magnesium phosphate?  Write your answer to two decimal places, and be sure to include units.

Magnesium phosphate is 27.74% magnesium, 48.69% oxygen, and the remainder is phosphorus, by mass.  How much phosphorus is in a 221.3 g sample of magnesium phosphate?  Write your answer to two decimal places, and be sure to include units.