500g 10%.................6 - 0 = 6...................6%xg 0%....................10 - 6 = 4500/x = 6/46x = 2000x = 333,33g H2OPonieważ gęstość wody d=1g/cm3, więc 333,33g = 333,33cm3 wody
x - masa wody, którą należy dodać
0,5kg = 500g
10%*500+0%*x = 6%(500+x)
0,1*500 = 0,06(500+x)
50 = 30+0,06x
0,06x = 20 |:0,06
x ≈ 333,3 [g]
d = m/V
V = m/d
V = 333,3g:1g/cm³
V = 333,3cm³
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500g 10%.................6 - 0 = 6
...................6%
xg 0%....................10 - 6 = 4
500/x = 6/4
6x = 2000
x = 333,33g H2O
Ponieważ gęstość wody d=1g/cm3, więc 333,33g = 333,33cm3 wody
x - masa wody, którą należy dodać
0,5kg = 500g
10%*500+0%*x = 6%(500+x)
0,1*500 = 0,06(500+x)
50 = 30+0,06x
0,06x = 20 |:0,06
x ≈ 333,3 [g]
d = m/V
V = m/d
V = 333,3g:1g/cm³
V = 333,3cm³