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Calculate the relative molecular mass of: Ammonium chloroplatinate (NH4)2 PtCl6 - Chemistry

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प्रश्न

Calculate the relative molecular mass of:

Ammonium chloroplatinate (NH4)2 PtCl6

संख्यात्मक

उत्तर

(2N)28 + (8H)8 + (Pt)195 + (6Cl)35.5 x 6 = 444

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Relationship Between Vapour Density and Relative Molecular Mass
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 5: Mole concept and Stoichiometry - Exercise 5B [पृष्ठ ८३]

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सेलिना Concise Chemistry [English] Class 10 ICSE
पाठ 5 Mole concept and Stoichiometry
Exercise 5B | Q 4.1 | पृष्ठ ८३

संबंधित प्रश्‍न

Prove the Following :
2 X V.D. = Molecular mass.


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


Calculate the percentage of water in ferrous sulphate crystals.
[Fe = 56, S = 32, O =16, H = 1].


An organic compound has the following percentage composition: C = 12.76%, H = 2.13%, Br = 85.11%. The vapour density of the compound is 94. Find out its molecular formula.


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 one word or phrase for the following:

The ratio of the mass of a certain volume of gas to the mass of an equal volume of hydrogen under the same conditions of temperature and pressure.


Calculate the relative molecular mass of:

CHCl3 


Find the weight of 0.5 mole of O2.


If a crop of wheat removes 20 kg of nitrogen per hectare of soil, what mass of the fertilizer, calcium nitrate Ca(NO3)2 would be required to replace the nitrogen in a 10 hectare field?


When heated, potassium permanganate decomposes according to the following equation :

\[\ce{2KMnO4 -> \underset{\text{solid residue}}{K2MnO4 + MnO2} + O2}\]

(a) Some potassium permanganate was heated in the test tube. After collecting one litre of oxygen at room temperature, it was found that the test tube had undergone a loss in mass of 1.32 g. If one litre of hydrogen under the same conditions of temperature and pressure has a mass of 0.0825 g, calculate the relative molecular mass of oxygen.

(b) Given that the molecular mass of potassium permanganate is 158. What volume of oxygen (measured at room temperature) would be obtained by the complete decomposition of 15.8 g of potassium permanganate? (Molar volume at room temperature is 24 litres)


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