Question

A drink is prepared by putting 4 g of decaffeinated coffee and 20 g of sugar in a glass,then adding 200 ml of water.Calculate the mass concentration of the substances that make up this drink

Answer 1

Respuesta:

200ml wáter = 200g

200g+20g+4g= 224g drink

224g ---100%

200g---x

x= 200*100/224= 89'3% water

20g---x

x= 20*100/224= 8,9% sugar

4g---x

x= 4* 100/224= 1,78% coffee