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
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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
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