Write the chemical formula of Calcium hydroxide. Calculate its formula unit mass (Atomic mass of Ca=40u, O=16u, H=1u)
Class 9 CBSE QUESTION
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Answer:
the chemical formula is Ca(OH2) .
the formula unit mass is
1*(atomic mass of Ca) + 2*(atomic mass of O) + 2* ( atomic mass of H) = 74
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Answer:
Ca(OH)×2
40+(16+1)×2
40+(17)× 2
40+34
74u
Explanation:
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