1)
a) M NaCl=23+35,5=58,5 g/mol1mol NaCl ------ 58,5g
xmoli NaCl ----- 5,85g
x = 0,1mola
b) M C12H22O11=144+22+ 176=342g/mol1mol C12H22O11 ----- 342g
xmoli C12H22O11 ---- 20g
x = 0,058mola
2)
mFe=56u
56g Fe ----- 6,02*10^23 at.
7g Fe ------ x at.
x = 0,753*10^23 at.
mS=32u
32g S ------ 6,02*10^23 at.
xg S ------- 0,753*10^23 at.
x = 4g S
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1)
a) M NaCl=23+35,5=58,5 g/mol
1mol NaCl ------ 58,5g
xmoli NaCl ----- 5,85g
x = 0,1mola
b) M C12H22O11=144+22+ 176=342g/mol
1mol C12H22O11 ----- 342g
xmoli C12H22O11 ---- 20g
x = 0,058mola
2)
mFe=56u
56g Fe ----- 6,02*10^23 at.
7g Fe ------ x at.
x = 0,753*10^23 at.
mS=32u
32g S ------ 6,02*10^23 at.
xg S ------- 0,753*10^23 at.
x = 4g S