When 4.2 g `NaHCO_(3)` is added to a solution of `CH_(3)COOH `(acetic acid) weighing 10 g, it is observed that 2.2 g of `CO_(2)` is released to the atmosphere. The residue is found to weigh 12.0 g. Show that these observations are in agreement with the law of conservation of mass.

In a reaction ,5.3g of sodium carbonate reacted with 6g of ethanoic acid. The product were 2.2 g of carbon dioxide,0.9g water and 8.2g sodium ethanoate. Show that these observation are in agrement with the law of conservation of mass. Sodium carbonate + ethanoic acid rarr sodium ethanoate + carbon dioxde + water.

What is the mass of 0.1 mole of CO_2 in g ?

When one litre of a saturated solution of PbCl_(2) (mol. Mass=278) is evaported, the residue is found to weight 2.78g. If K_(sp) of PbCl_(2) is represented as yxx10^(-6) then find the value of y.

Calculate the number of iron atoms in a piece of iron weighing 2.8g

19.5 g of CH_2FCOOH is dissolved in 500 g of water. The depression in the freezing point of water observed is 1.0° C. Calculate the van’t Hoff factor and dissociation constant of fluoroacetic acid.

Aakash bought vegetables weighing 10 kg.Out of this 3 kg 500 g is onions,2 kg 75 g is tomatoes and the rest is potatoes .What is the weight of the potatoes?

0.6 mL of acetic acid (CH_3COOH) having density 1.06 g mL^(-1) , is dissolved in 1 litre of water. The depression in freezing point observed for this strength of acid was 0.0205^@C . Calcuate the van't Hoff factor and the dissociation constant of acid.

30 mL of CH_(3)OH (d = 0.8 g//cm^(3)) is mixed with 60 mL of C_(2)H_(5)OH(d = 0.92 g//cm^(2)) at 25^(@)C to form a solution of density 0.88 g//cm^(3) . Select the correct option(s) :