Answer: 0.27621 g
Explanation:
0.297 ml *0.930 g/ml=0.27621 g
Volume= Mass/ Density= 20/184
= 0.108 cubic cm
Unbalanced it should be 2Zn+2Hcl=2ZnCl2+H2
4. NaOH
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Answer:
[CaCl₂] = 1.32 M
Explanation:
We know the volume of solution → 0.30 L
We know the mass of solute → 44 g of CaCl₂
Let's convert the mass of solute to moles.
44 g . 1 mol / 110.98 g = 0.396 moles
Molarity (mol/L) → 0.396 mol / 0.3 L = 1.32 M
