Answer:
a 63.428gm
b 41.5 gm
Step-by-step explanation:
a
70 gm CaCOH2=111gm of CaCl2
40 gm =(111*40)/70
=63.428gm
b
107 gm of NH4Cl =111 gm of CaCl2
40 gm gives =(111*40)/107
=41.5 gm
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