Do 400g pięcioprocentowego roztworu chlorku amonu dodano 100g wody. Oblicz stężenie procentowe.
Z def. stęż. procent.
5g soli------100g roztworu
xg soli------400g roztworu
x = 20g soli
DOLANO 100g wody, więc
20g soli------500g roztworu
xg soli--------100g roztworu
x = 4g soli
x = 4%
Cp1= 5% mr1=400g 5%=ms/400g*100% ms= 5*400g/100ms= 2000g/100ms=20g Szukane: Cp2=? mr2= 400g + 100g = 500g ms=20g Cp2= 20g/500g * 100% Cp2= 2000%/500Cp2= 4% Pozdrawiam, kate66 ;)
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Z def. stęż. procent.
5g soli------100g roztworu
xg soli------400g roztworu
x = 20g soli
DOLANO 100g wody, więc
20g soli------500g roztworu
xg soli--------100g roztworu
x = 4g soli
x = 4%
Cp1= 5%
mr1=400g
5%=ms/400g*100%
ms= 5*400g/100
ms= 2000g/100
ms=20g
Szukane: Cp2=?
mr2= 400g + 100g = 500g
ms=20g
Cp2= 20g/500g * 100%
Cp2= 2000%/500
Cp2= 4%
Pozdrawiam, kate66 ;)