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Calculate the molarity of eaCHM of the following solutions `:` `a. 30g` of `Co(NO_(3))_(2).6H_(2)O` in `4.3L` of solution `b. 30mL` of `0.5 M H_(2)SO_
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Calculate the molarity of eaCHM of the following...
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Jan 5, 2022
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JackTerrance
Calculate the molarity of eaCHM of the following solutions : a.30g of Co(NO3)2.6H2O in 4.3L of solution b.30mL of 0.5MH2SO4 diluted to 500mL . Select the correct answer from above options
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Jan 5, 2022
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JackTerrance
Correct Answer - a.0.024M,b.0.03m a. MwofCo(NO3)2.6HO=58.7+2(14+48)+6×18 =310.78gmol-1 M= W2×1000 Mw2×Vsol(inmL) = 30g×1000 310.7gmol-1×4300mL =0.02M b . M1V1=M2V2 0.5×30mL=M2×500 :M2=0.03M
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