Question

Find the mass of 4.5 miles of H3PO4

Answer 1

Mass, M is 440.883g

Step-by-step explanation:

Given the following;

Moles=4.5moles

Molar mass of H3PO4=

Atomic mass of Hydrogen H=(1*3)=3

Atomic mass of Phosphorus P=30.974

Atomic mass of Oxygen O=(16*4)=64

Therefore, Molar mass is;

H3PO4=3+30.974+64=97.974g/mol

`{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}`

Mass M = Number of moles × Molar mass

M = 4.5 × 97.974

M = 440.883g