How many moles of N a + ions are in 20 ml of 0.4 M N a 3 P O 4 ?

How many moles of

N a^{+}

ions are in 20 ml of 0.4 M

N a_{3} P O_{4}

?

0.008
0.024
0.05
0.20

Solution

M = \frac{n}{V} \times 1000

n = \frac{N u m b e r o f a t o m s \times M \times V}{1000}

Number of moles of

N a^{+} = 0.4 \times 20 \times 3 \times 1 0^{- 3} = 0.024

Asked in: JEE-TOPICTESTS-CHEMISTRY

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