PUMPA - SMART LEARNING
எங்கள் ஆசிரியர்களுடன் 1-ஆன்-1 ஆலோசனை நேரத்தைப் பெறுங்கள். டாப்பர் ஆவதற்கு நாங்கள் பயிற்சி அளிப்போம்
Book Free DemoAnswer the following questions:
1. Hydrogen and oxygen combine in the ratio of 1:8 by mass to form water. What mass of oxygen gas would be required to react completely with 3 g of hydrogen gas?
Ratio of H : O by mass in water is:
Hydrogen : Oxygen →
∴ = 3 : x
x = 8 x 3
x =
∴ 24 g of oxygen gas would be required to react completely with \(3\) g of hydrogen gas.
2. Which postulate of Dalton’s atomic theory is the result of the law of conservation of mass?
The postulate of Dalton’s atomic theory that is the result of the law of conservation of mass is the and kinds of atoms that are constant in a given compound. cannot be created nor destroyed in a chemical reaction.
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