Jawabanmu

2014-02-03T22:43:27+07:00
Mr KCLO3 = 
=1* Ar K + 1 * Ar Cl + 3* Ar O
=(1*39)+(1*35)+(3*16)
=( 39 + 35,5 + 48) = 122,5 gr/mol

Mr Na2CO3. 10H2O =
= 2* Ar Na + 1 * Ar C + 3* Ar O + 20* Ar H + 10*Ar O
=(2*23)+(1*12)+(3*16)+(20*1)+(10*16)
=(46+12+48+20+160) = 286 gr/mol
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