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Chemistry
List of top Chemistry Questions on Mole concept and Molar Masses asked in KEAM
An organic compound contains $40\%$ C and $6.7\%$ $H_2$. What is the empirical formula of the compound?
KEAM - 2026
KEAM
Chemistry
Mole concept and Molar Masses
The number of electrons in one mole of methane (CH\(_4\)) is:
KEAM - 2026
KEAM
Chemistry
Mole concept and Molar Masses
The empirical formula of an organic compound is $CH_{2}$. The molar mass of the compound is $56g~mol^{-1}$. The organic compound is ________.
KEAM - 2025
KEAM
Chemistry
Mole concept and Molar Masses
The molality of the
$3\,M$
solution of methanol if the density of the solution is
$0.9\, g\, cm^{-3}$
is
KEAM
Chemistry
Mole concept and Molar Masses
The mass of
${CaCO_3}$
required to react completely with 20 mL of 1.0M HCl as per the reaction,
${CaCO_3 + 2HCl -> CaCl2 + CO_2 + H_2O}$
is (At. wt: Ca = 40, C = 12, O = 16).
KEAM
Chemistry
Mole concept and Molar Masses