How many moles of phosphoric acid are contained in 50.0 mL of 0.60 M H3PO4?

Answer 1

Molar concentration=moles per volume

1 molar=1 mole per 1 liter

Formula to determine molarity:

M=moles/volume

Thus, formula to determine moles:

moles=volume*M

To convert to standard proportions:

1 M = 1 mole per L

50.0 mL = 0.050 L

Thus, information given:

0.60 M=x moles/0.050 L (multiply by denominator to isolate x)

x moles=0.050 L * 0.60 M (multiply volume and molarity)

x moles=0.03

0.03 moles

Check: 0.03 moles/0.050 L=0.60 M