Percent Composition

what is the percent composition of KOH?

Tags

NGSS.MS-PS1-1

what is the percent composition for HCl?

Tags

NGSS.MS-PS1-1

What is the equation for percent composition?

what is the percent composition for water?

Tags

NGSS.MS-PS1-1

what is the percent composition for NaOH?

Tags

NGSS.MS-PS1-1

A sample of a metal is 74% Aluminum. If the sample weighs 200 g, what is the mass of Aluminum in the sample?

• 74 g

• 200 g

• 148 g

• 100 g

An element sample is 44% Zinc. If the sample has a mass of 5.0 g, what the mass of the Zinc in the sample?

• 5.0 g

• 220 g

• 2.2 g

• There is no Zinc

What is the percentage of chlorine in sodium chloride? (NaCl)

• 60.7%

• 39.3%

• 60%

• 40%

What is the percentage of iron in iron(III)oxide (Fe₂O₃)?

• 30%

• 70%

• 40%

• 60%

What is the percent by mass of oxygen in MgO?

• 20%

• 40%

• 50%

• 60%

Tags

NGSS.HS-PS1-7