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64 solutions

Mass Percent Formula

Q. Calculate mass % composition of each element in C4H8O2

Solved • Nov 21, 2019

Mass Percent Formula

Q. What is the concentration, in weight %, of a solution made by mixing 45.0 g of NaCl with 250.0 ml of water?

Solved • Nov 15, 2019

Mass Percent Formula

Q. A chromium-containing compound has the formula FexCryO4 and is 28.59% oxygen by mass. Find x and y.

Solved • Nov 14, 2019

Mass Percent Formula

Q. A 0.846-g sample containing barium ions is completely dissolve in water and treated with excess Na2SO4. 0.746 g of BaSO4 precipitate. What is the mass percent of barium in the sample?

Solved • Nov 13, 2019

Mass Percent Formula

Q. Calculate the mass percentage of NaCl in a solution containing 1.50 g of NaCl in 50.0 g of water. 0.0291% 0.0300% 0.0513% 2.91% 3.00%

Solved • Nov 12, 2019

Mass Percent Formula

Q. A 0.679-g sample containing barium ions is completely dissolve in water and treated with excess Na2SO4. 0.724 g of BaSO4 precipitate. What is the mass percent of barium in the sample? 18.1 % 37.3 % 93.8% 6.63 % 62.7%

Solved • Nov 11, 2019