Chemistry Practice Problems Mass Percent Formula Practice Problems Solution: What is the percent by mass of oxygen in Ca(NO3)2?...

🤓 Based on our data, we think this question is relevant for Professor Lazaridis' class at CCNY.

# Solution: What is the percent by mass of oxygen in Ca(NO3)2? a) 29.3% b) 47.1% c) 58.5% d) 94.1%

###### Problem

What is the percent by mass of oxygen in Ca(NO3)2?

a) 29.3%

b) 47.1%

c) 58.5%

d) 94.1%

Mass Percent Formula

Mass Percent Formula

#### Q. A solution is prepared by dissolving 98.6 g of NaCl in enough water to form 875 mL of solution. Calculate the mass % of the solution if the density of...

Solved • Mon Apr 11 2016 16:41:36 GMT-0400 (EDT)

Mass Percent Formula

#### Q. Calculate the mass percent composition of lithium in Li3PO4. A) 26.75 % B) 17.98 % C) 30.72 % D) 55.27 % E) 20.82 %

Solved • Fri Apr 08 2016 15:12:38 GMT-0400 (EDT)

Mass Percent Formula

#### Q. The density of air at sea level and 98 °F is about 1.20 g/L. The volume of the adult human lungs in the expanded state is about 6.0 L. Given that air ...

Solved • Mon Apr 04 2016 13:05:43 GMT-0400 (EDT)

Mass Percent Formula

#### Q. A 1.28 g sample of copper is heated with sulfur to produce 1.6 g copper sulfide. Calculate the mass percentages of copper and sulfur in the compound.

Solved • Wed Mar 02 2016 11:04:17 GMT-0500 (EST)