Fill in the blank. Give your answer as integers.
Compound
C₂H4
30H, 206
C12
Н,0
C3H6Br2
Atomicity
6
12
ll I
viron...
5 6
7
8
9
10
11
12

1. for the first question, we must find the mass of the anhydrous salt, mgso₄. the molar mass for mgso₄·7h₂o is 246.47 g/mol, while that of mgso₄ is 120.37 g/mol.7.834 g mgso₄·7h₂o * 1 mol mgso₄·7h₂o/246.47 g * 1 mol mgso₄/1 mol mgso₄·7h₂o * 20.37 g mgso₄/mol = 0.647 g mgso₄

2. mass of water = mass of sample - mass of anhydrous salemass of water = 7.834 - 0.647 = 7.19 gpercent water in hydrate = 7.19/7.834 * 100 = 91.74%

all eukaryotic cell have mitochondria : )

answer carbon and three oxygen atoms;