Answer:
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Explanation:
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Answer:
1. Balanced chemical for the given chemical reaction is :
number of mole of sulphuric acid produced = 12.5 mol
number of mole of oxygen required=6.25 mol
Explanation:
1. Balanced chemical for the given chemical reaction is :
from above balanced equation it is clearly that ,
2 mole of sulpher dioxide gives 2 mole of sulphuric acid
1 mole of sulpher dioxide gives 1 mole of sulphuric acid
therefore,
12 .5 mole of sulpher dioxide will givs 12.5 mole of sulphuric acid
number of mole of sulphuric acid produced = 12.5 mol
2 mole of sulphur dioxide needs 1 mole of oxygen gas
so,
1 mole of sulphur dioxide needs 0.5 mole of oxygen gas
therefore 12.5 of sulphur dioxide needs mole of oxygen
number of mole of oxygen required=6.25 mol
Answer:
the law of conservation mass states that the mass of an isolated system cannot be created nor destroyed by any chemical reaction or physical transformation.
thus, there must be an equal number of atoms of an element present on both sides of the equation.
Take any compound, for example Al2O3.
For determining %composition of an element in the compound, divide total mass of the element with total mass of the compound and then multiply it by 100.
In the case of Al2O3, if we have to find the % composition of oxygen then,
R.M.M. of Al2O3 = 2×27 + 3×16
= 54 + 48
= 102
Percent composition of oxygen
= (G.M.M. of oxygen/R.M.M. of
Al2O3) × 100
= (48/102) × 100
=47.06%
Answer:
her results has good precision
Explanation:
accuracy and precision