The atomic mass would not change since the mass of an electron is negligible compared to the mass of protons and neutrons
Answer:
85% of 20 is 17
Explanation:
You can multiply 85% and 20 or subtract 85% from 20.
Assume there is 100g of the substance at first
Answer:
1.38 M
Explanation:
Need to use the Molarity equation M=n/L
23.5g/ 17.031g/mol NH3 = 1.38 moles
1.38 moles/ 1.0 L = 1.38 M
Answer:
Explanation:
molar mass=valency of the element*atomic number
its unit is amu
