Answer:
Mass = 20 g
Explanation:
Given data:
Number of moles of He = 5 mol
Mass of He = ?
Solution:
Formula:
Number of moles = mass/ molar mass
Molar mass = 4 g/mol
by putting values,
5 mol = Mass / 4 g/mol
Mass = 5 mol × 4 g/mol
I believe it is decomposition, neutralization, combustion
Multiply by t on both sides.
Now divide by I to isolate t.
if i remember correctly i beleive its A 1.8 x 10^24
but im not for sure also i think you forgot the 24
A, because the shape of it forms and arc much like a H2O molecule.
