Zinc sulphate contaims 22.65%zn and 43.9%H2O.if the law of constant proportions is true ,then the mass of zn required to give 40g crystal will be
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100g of crystals are obtained from =22.65g of Zn
∴
∴
20g of crystals are obtained from =
22.65
100
22.65100
×20
×20
⇒4.53g
⇒4.53g
∴
∴
20g of crystals are obtained from =
22.65
100
22.65100
×20
×20
⇒4.53g
⇒4.53g
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