Tolong dibantu ya no 24 & 25

24. 


n1/v1=n2/v2

n1/4=4/8

2n1=4
n1=2

m=n * (12+32)
m= 2 * 44
m= 88 gram

25.
n= 4.48/22.4
n=0.2

mr=11.6/0.2
mr=58