मराठी

Which Postulate of Dalton’S Atomic Theory Can Explain the Law of Constant Proportions ?

Advertisements
Advertisements

प्रश्न

Which postulate of Dalton’s atomic theory can explain the law of constant proportions ?

टीपा लिहा
Advertisements

उत्तर

Dalton’s postulate explains the law of constant proportions. It states that elements consist of atoms which have a fixed mass and also the number and kind of atoms in each element of a compound is fixed.

shaalaa.com
  या प्रश्नात किंवा उत्तरात काही त्रुटी आहे का?
पाठ 3: Atoms and Molecules - Very Short Answers [पृष्ठ १३०]

APPEARS IN

लखमीर सिंह Chemistry [English] Class 9
पाठ 3 Atoms and Molecules
Very Short Answers | Q 53.3 | पृष्ठ १३०

व्हिडिओ ट्यूटोरियलVIEW ALL [1]

संबंधित प्रश्‍न

Which postulate of Dalton’s atomic theory can explain the law of definite proportions?


When 3.0 g of carbon is burnt in 8.00 g oxygen, 11.00 g of carbon dioxide is produced. What mass of carbon dioxide will be formed when 3.00 g of carbon is burnt in 50.00 g of oxygen? Which law of chemical combinations will govern your answer?


Which postulate of Dalton's atomic theory is the result of law of conservation of mass given by Lavoisier ?


Which part of the Dalton's atomic theory came from the law of constant proportions given by Proust ?


In water, the proportion of oxygen and hydrogen by mass is :


In an experiment, 4.90 g of copper oxide was obtained from 3.92 g of copper. In another experiment, 4.55 g of copper oxide gave, on reduction, 3.64 g of copper. Show with the help of calculations that these figures verify the law of constant proportions.


When 5 g of calcium is burnt in 2 g of oxygen, then 7 g of calcium oxide is produced. What mass of calcium oxide will be produced when 5 g of calcium is burnt in 20 g of oxygen ? Which law of chemical combination will govern your answer ?


What do we call those particles which are formed by the gain of electrons by atoms ?


Two samples ‘m’ and ‘n’ of slaked lime were obtained from two different reactions. The details about their composition are as follows: 

  • ‘sample m’ mass: 7g
  • Mass of constituent oxygen: 2g
  • Mass of constituent calcium: 5g
  • ‘sample n’ mass: 1.4g
  • Mass of constituent oxygen: 0.4g
  • Mass of constituent calcium: 1.0g

Which law of chemical combination does this prove? Explain.


Ruthresh, Hari, Kanishka, and Thahera collected different samples of water from a well, a pond, a river, and underground water. All these samples were sent to a testing laboratory. The test result showed the ratio of hydrogen to oxygen as 1:8.

  1. What conclusion would you draw from the above experiment?
  2. Which law of chemical combination does it obey?

Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×