Advertisements
Advertisements
प्रश्न
When carbon dioxide is passed over red hot carbon, carbon monoxide is produced according to the equation :
\[\ce{CO2 + C -> 2CO}\]
What volume of carbon monoxide at S.T.P. can be obtained from 3 g of carbon?
उत्तर
12 g of C gives = 44.8 litre volume of CO
So, 3 g of C will give = 11.2 litre of CO
APPEARS IN
संबंधित प्रश्न
Copper sulphate solution reacts with sodium hydroxide solution to form a precipitate of copper hydroxide according to the equation :
2NaOH + CuSO4 → Na2SO4 + Cu (OH)2 ↓
(i) What mass of copper hydroxide is precipitated by using 200 gm of sodium hydroxide?
[H = 1, O = 16, Na = 23, S = 32, Cu = 64]
(ii) What is the colour of the precipitate formed?
What is the value of molar volume of a gas at STP?
What volume of hydrogen sulphide at STP will burn in oxygen to yield 12.8g suIphurdioxide according to the equation?
2H2S + 3O2 → 2H2O + 2SO2
A cylinder contains 68g of ammonia gas at STP
- What is the volume occupied by this gas?
- How many moles of ammonia are present in the cylinder?
- How many molecules of ammonia are present in the cylinder? [N - 14, H - 1]
The mass of 11.2 litres of a certain gas at s.t.p is 24 g. Find gram molecular mass of the gas
State your observation of the following case:
When moist starch iodide paper is introduced into chlorine gas.
60 cm3 of oxygen was added to 24 cm3 of carbon monoxide and mixture ignited. Calculate the volume of oxygen used up.
The equation given below relates the manufacture of sodium carbonate (molecular weight of Na2CO3 = 106).
- NaCl+NH3+ CO2+ H2O→ NaHCO3+NH4Cl
- 2NaHCO3→ Na2CO3+H2O + CO2
Equations (1) and (2) are based on the production of 21.2 g of sodium carbonate.
(a) What mass of sodium hydrogen carbonate must be heated to give 21.2 g of sodium carbonate?
(b) To produce the mass of sodium hydrogen carbonate calculate in (a), what volume of carbon dioxide, measured at S.T.P. would be required?
A sample of carbon dioxide occupies 30 cm3 at 15°C and 740 mm pressure. Find its volume at STP.
Write the value of:
the standard temperature in:
(i) °C
(ii) K
