Question

Jawab beserta alasannya ya
larutan yg mmliki ph 2 adlh
1. 100ml HCl 0,02 m
2. 250 ml HNO3 0,01 m
3. 50 ml H2SO4 0,5 M
4. 100ml HA 0,1 m (a= 0,01)
5. 100ml H2SO4 0,01 m

Answer 1

1. [] = 1 × HCL
=1×0,02 = 2×
PH = - Log 2× = 2-Log 2

2. [] = 1× HNO3
= 1×0,01 = 1×
PH= -Log = 2

3. [] = 1×HNO3
=1×0,5 = 5×
PH= - Log 5× = 5 - Log 1

4.[]= α .M
= 0,01× 0,1 = 1×
PH= - Log = 3

5.[]=1× H2SO4
= 1×0,01=1×
PH= -Log = 2

Jadi yg PH nya 2 adalah NO. 2 & NO.5