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Concentration Terms - An Introduction (w/w etc)

When 8.4g of ...

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When 8.4g of NAHCO3 is added to a Sol. Of CH3COOH weighing20g.it is observed that 4.4g of co2 is released in to atmosphere and a residue is behind. Then calculate the Mass of residue by applying law of conservation of Mass

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Q. When 4.2g of sodium hydrogen carbonate (NaHCO3) is added to a solution of HCl weighing 10.0g, it is observed that 2.2g of CO2 is released into the atmosphere. The residue left behind is found to weigh 12.0g. Show that these observations are in agreement with the laws of conservation of mass.

Q. When 4.2 g of sodium bicarbonate is added to a solution of hydrochloric acid weighing 10g. it is observed that 2.2g of carbon dioxide is released into the atmosphere. The residue behind is found to weigh 12g show that, this observation in are in arrangement with the law of conservation of mass.

21 g

N a H C O_{3}

15 g

C H_{3} C O O H

solution, the residue is found to weigh

25 g

. what is the mass of

C O_{2}

is released in the reaction?

21 g

N a H C O_{3}

15 g

C H_{3} C O O H

solution, the residue is found to weigh

25 g

. what is the mass of

C O_{2}

is released in the reaction?

Q. Assertion :When

10

C a C O_{3}

5.6

g of residue is left and

4.4

C O_{2}

escapes. Reason: Law of mass conservation is followed.

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Concentration Terms - An Introduction (w/w etc)

Standard XII Chemistry

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