# Problem: 1. How many moles are in 15 grams of lithium?2. How many grams are in 2.4 moles of sulfur?3. How many moles are in 22 grams of argon?4. How many grams are in 88.1 moles of magnesium?5. How many moles are in 2.3 grams of phosphorus?6. How many grams are in 11.9 moles of chromium?

###### FREE Expert Solution

Convert the mass to moles using molar mass.

mass (molar mass) → moles

**molar mass from the periodic table

Convert the moles to mass using molar mass.

mole (molar mass) → mass

**molar mass from the periodic table

When doing unit conversions:

put units you need to cancel out on opposite places (if it’s in the numerator then put the conversion factor with the same unit in the denominator)
always raise the units to the necessary number especially when dealing with volume, area, etc.

95% (291 ratings) ###### Problem Details

1. How many moles are in 15 grams of lithium?

2. How many grams are in 2.4 moles of sulfur?

3. How many moles are in 22 grams of argon?

4. How many grams are in 88.1 moles of magnesium?

5. How many moles are in 2.3 grams of phosphorus?

6. How many grams are in 11.9 moles of chromium?