70. When 4.2g NaHCO_3 reacts the 10g acetic acid, CO_2 formed is 2.3g and mass of solution is 12g. Show that these data confirm the law of conservation of mass

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In a reaction, 5.3 g of sodium carbonate reacted with 6 g of acetic acid. The products were 2.2 g of carbon dioxide, 0.9 g of water and 8.2 g of sodium acetate. Show that these observations are in agreement with the law of conservation of mass.
Sodium Carbonate + Acetic Acid $\to$ Sodium Acetate + Carbon Dioxide + Water

Q. When

8.4 g

N a H C O_{3}

is added to a solution of

C H_{3} C O O H

weight

20 g

.It is observed that

4.4 g

C O_{2}

is released into atmosphere and a residue is left behind.Calculate the mass of residue by applying law of conservation of mass

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.

Q. (a) Define Law of conservation of mass along with an
example.
(b) 15.9 g of copper sulphate and 10.6 g of sodium
carbonate were made to react with each other .
As a result, 14.2 g of sodium sulphate and 12.3 g
of copper carbonate were formed. Show that
these results are in accordance with the law of
conservation of mass.

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