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प्रश्न
Correct the following statement:
The standard temperature is 25°C.
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उत्तर
The standard temperature is 0°C.
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संबंधित प्रश्न
A cylinder contains 68 g of ammonia gas at STP.
1) What is the volume occupied by this gas?
2) How many moles of ammonia are present in the cylinder?
3) How many molecules of ammonia are present in the cylinder?
[N = 14, H = 1]
Complete the following calculations. Show working for complete credit :
If 6 litres of hydrogen and 4 litres of chlorine are mixed and exploded and if water is added to the gases formed, find the volume of the residual gas.
The mass of 11.2 litres of a certain gas at s.t.p is 24 g. Find gram molecular mass of the gas
What is the volume at S.T.P. of 7.1 g of chlorine?
The following question refers to one mole of chlorine gas.
What is the volume occupied by this gas at STP?
What volume of hydrogen and oxygen measured at S.T.P. will be required to prepare 1.8 g of water?
How much volume will be occupied by 2 g of dry oxygen at 27°C and 740 mm pressure?
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?
Define S.T.P.
Which of the following would occupy 22.4 litres at S.T.P.?
- 32 g of oxygen gas
- 2 moles of hydrogen gas
- 6.022 × 1023 molecules of ammonia
[Atomic weights: O = 16, H = 1, N = 14]
