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24. 9 g impur...

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24. 9 g impure sample of NaHCO3 on heating loses 3.1 g when heated to 300^° C. What is the amount of NaHCO3 in the sample?

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Q. A 2 g sample containing

N a_{2} C O_{3}

N a H C O_{3}

loses 0.62 g when heated to

300^{o} C,

the temperature at which

N a H C O_{3}

N a_{2} C O_{3}, C O_{2}

H_{2} O .

What is the percentage of

N a_{2} C O_{3}

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Q. A 2.00 g. of sample containing

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N a H C O_{3}

loses 0.248 g when heated to

300^{o} C

, the temperature at which

N a H C O_{3}

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N a_{2} C O_{3}

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2.0

g sample containing

{N a}_{2} C O_{3}

N a H C O_{3}

0.248

g when heated to

300

^{o} C

, the temperature at which

N a H C O_{3}

{N a}_{2} C O_{3}, C O_{2}

H_{2} O

%

{N a}_{2} C O_{3}

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N a_{2} C O_{3}, N a H C O_{3}

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. Residue is dissolved in water and formed

100 m L

solution and its

10 m L

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0.2 M

aqueous solution of

B a C l_{2}

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Q. A sample of chalk contains clay as impurity. The clay impurity loses

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