A substance has a volume of 20 ml and a density of 2.5 g/ml.What is it mass? A:0.125g ,B:8g, c:22.5g or D:50g
1 answer:
Answer:
D. 50g
volume : 20ml
= 0.02 l
density : 2.5g/ml
= 2500 g/l
therefore, p=m/v
m= p x v
= 2500 x 0.02
= 50
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