A student needs to add exactly 4.00 mol of NaOH to a beaker. The beaker already...

A student needs to add exactly 4.00 mol of NaOH to a beaker. The beaker already contains 450 mL of H2O. How many grams of NaOH does the student need to measure out?

1.What conversion factor is needed to solve this problem? (Use three sig. figs. for the molar mass of the compound.) fill in the blank.

_____ mol NAOH = _____ g NAOH

Solutions

Expert Solution

Ans. Required mass of NaOH = Required moles x Molar mass

= 4.00 mol x 40.0 g mol^-1

= 160.0 g

# Conversion factor:

Mass = moles x Molar mass

queen_honey_blossom answered 1 year ago

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