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How many moles of Na^(+) ions are in 20m...

How many moles of `Na^(+)` ions are in `20mL "of" 0.40" "M " "Na_(3)PO_(4)` .

A

`0.0080`

B

`0.024`

C

`0.050`

D

`0.20`

Text Solution

Verified by Experts

The correct Answer is:
B
Mole of `NO_(3)PO_(4) = 20 xx 40`
`=8 m "mol" =008 "mol"`
`Na_(3)PO_(4)` contain `3Na^(+)` ion
`= 3 xx 008 = 024 "mol"`
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