diketahui:
total Mr= 40x4+12+16x3=220
volume air = 500 gr = 0,5 kg
Konsentrasi (M) = mol
volume
Konsentrasi (M)= gr/Mr
2 = gr/220
0,5
1 = gr/220
gr = 220
jadi masa yang harus dilarutkan adalah 220 gr
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diketahui:
total Mr= 40x4+12+16x3=220
volume air = 500 gr = 0,5 kg
Konsentrasi (M) = mol
volume
Konsentrasi (M)= gr/Mr
volume
2 = gr/220
0,5
1 = gr/220
gr = 220
jadi masa yang harus dilarutkan adalah 220 gr
m air=500 gr
M=2M
Mr Ca4CO3 =4(40)+12+3(16)=220
ditanyakan = m Ca4CO3
Jawab:
1)M=(m Ca4CO3/Mr)(1000/m air)
2=(m Ca4CO3/220)(1000/500)
(m Ca4CO3/220)=2/(1000/500)
(m Ca4CO3/220)=2/2
(m Ca4CO3/220)=1
m Ca4CO3=220 gr