120g of Na2CO3 Salt was added to 80cm3 of water at 30oC. The solubility of the 30oC is 8.0mol/dm3. Calculate the mass of the salt which remained un dissolved. (Na=23; C=12; O=16)
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Expert's answer
2020-06-30T07:47:25-0400
1.find the n of the Na2CO3:
n=Mm=106120=1.13
2.find the amount of salt in the solution at 30 degrees
n=C×V=8∗0.08=0.64
3.find the amount of salt undissolved at 30 degrees
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