हिंदी

What do you understand by the statement that ‘vapour density of carbon dioxide is 22’?

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प्रश्न

What do you understand by the statement that ‘vapour density of carbon dioxide is 22’?

एक पंक्ति में उत्तर
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उत्तर

The vapor density of carbon dioxide is 22; it means that 1 molecule of carbon dioxide is 22 times heavier than 1 molecule of hydrogen.

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अध्याय 5: Mole concept and Stoichiometry - EXERCISE-5B [पृष्ठ ८४]

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एस पी सिंग Concise Chemistry [English] Class 10 ICSE
अध्याय 5 Mole concept and Stoichiometry
EXERCISE-5B | Q 19. (a) | पृष्ठ ८४

संबंधित प्रश्न

Calculate the relative molecular mass of Potassium chlorate.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S=32)


Calculate the relative molecular mass of Ammonium sulphate.
(use K = 39, Cl = 35.5, O = 16, C = 12, H = 1, Na = 23, N = 14, S= 32)


What is the mass of nitrogen in 1000Kg of urea [CO(NH2)2] ?
[H = 1, C= 12, N= 14, O = 16]


Water can split into hydrogen and oxygen under suitable conditions. The equations representing the change is:  2H2O(I) → 2H2 (g) + O2(g)
Ammonia burns in oxygen and the combustion in the presence of a catalyst may be represented as:
2NH3 (g) +21/2O2 (g) → 2NO (g) + 3H2O (I)
What mass of steam is produced when 1.5 g of nitrogen monoxide is formed?


A flask contains 3.2g of sulphur dioxide. Calculate the following: The number of molecules of sulphur dioxide present in the flask.


A compound 'X' consists of 4.8% of C and 95.2% of Br by mass. 
Name the type of chemical reaction by which X can be prepared from ethane.


A certain gas 'X' occupies a volume of 100 cm3 at S.T.P. and weighs 0.5 g. Find its relative molecular mass.


4.5 moles of calcium carbonate are reacted with dilute hydrochloric acid.

  1. Write the equation for the reaction.
  2. What is the mass of 4.5 moles of calcium carbonate? (Relative molecular mass of calcium carbonate is 100).
  3. What is the volume of carbon dioxide liberated at STP?
  4. What mass of calcium chloride is formed? (Relative molecular mass of calcium chloride is 111).
  5. How many moles of HCl are used in this reaction?

Give two tests of the following:
Oxygen


Find the weight of 0.5 mole of O2.


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