What's the question here???
I'm not sure about 2 but in 3 it would float
Answer:
Number of moles = 0.31 mol
Explanation:
Given data:
Mass of H₃PO₄ = 30.0 g
Number of moles = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass of H₃PO₄ = 98 g/mol
Number of moles = 30.0 g / 98 g/mol
Number of moles = 0.31 mol
I'm thinking its answer choice D. But it might be a good idea to wait and see if someone agrees
Water absorbs energy D. Melting
