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mojhsa [17]
3 years ago
15

Answer these three please! Thank you <3333 (I will give brainliest)

Chemistry
1 answer:
N76 [4]3 years ago
5 0

Answer:

Explanation:

21:B 22:B

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How many moles of caco3 are there in an antacid tablet containing 0.515 g caco3?
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The  moles  of  CaCO3  which  are  there  in  antacid  tablet  that  contain  0.515g  CaCO3  is  calculated  as  follows

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moles  is  therefore=  0.515g/100 g/mol=  5.15  x10^-3  moles


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