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98 solutions

Mass Percent Formula

Q. Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride in grams required to make 6.0g of silver plating.

Solved • Mar 8, 2020

Mass Percent Formula

Q. The American Dental Association recommends that an adult female should consume 3.0 mg of fluoride (F^-) per day to prevent tooth decay. If the fluoride is consumed in the form of sodium fluoride (45.24% F), what amount of sodium fluoride contains the recommended amount of fluoride? Express your answer using two significant figures.

Solved • Feb 21, 2020

Mass Percent Formula

Q. Silver chloride, often used in silver plating, contains 75.27% Ag. Calculate the mass of silver chloride required to plate 295 mg of pure silver.

Solved • Feb 21, 2020

Mass Percent Formula

Q. Calculate the mass percent composition of nitrogen in each of the following nitrogen compounds. N2O Express your answer using four significant figures.

Solved • Feb 21, 2020

Mass Percent Formula

Q. Calculate the mass percent composition of nitrogen in each of the following nitrogen compounds. BN Express your answer using four significant figures.

Solved • Feb 21, 2020

Mass Percent Formula

Q. A hydrocarbon is a compound that contains mostly carbon and hydrogen. Calculate the percent composition (by mass) of the following hydrocarbon: C8H18 Enter the percentages of carbon and hydrogen numerically to four significant figures, separated by commas.

Solved • Feb 20, 2020

Mass Percent Formula

Q. A 14.1 g sample of an aqueous solution of nitric acid contains an unknown amount of the acid. If the 17.1 mL of 0.712 M potassium hydroxide are required to neutralize the nitric acid, what is the percent by mass of nitric acid in the mixture?

Solved • Feb 23, 2020