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Bohr's Model of a Hydrogen Atom

nacl is made ...

Question

nacl is made up of na+ and cl- ions.
how many sodium ions are there in 58.5g of nacl?

what is mass of 1 mole of chloride ions?

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Solution

$1 . N o o f m o l e s o f N a C l = \frac{M a s s o f t h e s u b s \tan c e i n g}{M o l a r m a s s} = \frac{58.5}{58.5} = 1 m o l e T h e n u m b e r o f m o l e c u l e s = M o l e \times A v o g a d r o n u m b e r = 1 \times 6.022 \times 10^{23} = 6.022 \times 10^{23} 1 m o l e c u l e o f s o d i u m c h l o r i d e c o n t a i n s 1 N a^{+} i o n S o t h e n u m b e r o f s o d i u m i o n s i n 6.022 \times 10^{23} m o l e c u l e s = 6.022 \times 10^{23} i 2 . M o l e = \frac{M a s s o f t h e s u b s t a n c e i n g}{M o l a r m a s s} M a s s o f t h e s u b s t a n c e i n g = M o l e \times m o l a r m a s s = 1 \times 35.5 = 35.5 g$

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Similar questions

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molal solution of

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of sodium chloride is dissolved in:

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