Advertisements
Advertisements
प्रश्न
0.30 g of a substance gives 0.88 g of carbon dioxide and 0.54 g of water calculate the percentage of carbon and hydrogen in it.
उत्तर
Weight of organic compound = 0.30 g
Weight of carbon dioxide = 0.88 g
Weight of water = 0.54 g
Percentage of carbon:
44 g of carbondioxide contains, carbon = 12 g
0.88 g of carbon dioxide contains, carbon = `(12 xx 0.88)/44`g
0.30 g substance contains,
carbon = `(12 xx 0.88)/44` g
100 g substance Contains `(12 xx 0.88)/44 xx 100/0.30` = 80 g of carbon
Percentage of carbon = 80 %
Percentage of hydrogen:
18 g of water contains, hydrogen = 2 g
0.54 g of water contains, hydrogen = `(2 xx 0.54)/18`g
0.30 g of substance contains hydrogen = `(2 xx 0.54)/(18 xx 0.30)`g
100 g of substance contains = `(2 xx 0.54)/(18 xx 0.30) xx 100`g = 20 g of hydrogen.
Percentage of hydrogen = 20%
APPEARS IN
संबंधित प्रश्न
A sample of 0.5 g of an organic compound was treated according to Kjeldahl’s method. The ammonia evolved was absorbed in 50mL of 0.5 M H2SO4 The remaining acid after neutralization by ammonia consumed 80 mL of 0.5 M NaOH. The percentage of nitrogen in the organic compound is.
In an organic compound, phosphorus is estimated as ______.
Give the principle involved in the estimation of halogen in an organic compound by Carius method.
The ammonia evolved form 0.20 g of an organic compound by Kjeldahl method neutralized 15 ml of N/20 sulphuric acid solution. Calculate the percentage of Nitrogen.
0.32 g of an organic compound, after heating with fuming nitric acid and barium nitrate crystals is a sealed tube game 0.466 g of barium sulphate. Determine the percentage of sulphur in the compound.
0.24g of an organic compound gave 0.287 g of silver chloride in the carius method. Calculate the percentage of chlorine in the compound.
In the estimation of nitrogen present in an organic compound by Dumas method 0.35 g yielded 20.7 mL of nitrogen at 15° C and 760 mm pressure. Calculate the percentage of nitrogen in the compound.
