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Recent questions and answers in Stoichiometry and the mole concept
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Stoichiometry and the mole concept
How much copper can be obtained from 100 g of copper sulphate $(CuSO_4)?$ (Atomic mass of $Cu=63.5\;amu$)
cbse
class11
chemistry
ch1
some-basic-concepts-of-chemistry
answered
Feb 14, 2019
by
meena.clay6
1
answer
If ten volume of dihydrogen gas reacts with five volumes of dioxygen gas, how many volumes of water vapour could be produced ?
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
If the speed of lights is $3.0 \times 10^{8}\;ms^{-1}$. calculate the distance covered by light in 2.00 ns
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
If the density of methanol is $0.793\; kg L^{-1}$ what is its volume needed for making 2.5 L of its $0.25\;M$ solution ?
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
One mole of $H_2O$ equals
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
Relative molecular masses can be calculated
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
__________ is mass of a particular substance divided by the total mass of all the substances present in the mixture or solution.
sat
chemistry
stoichiometry and the mole concept
answered
Jul 5, 2018
by
meena.p
1
answer
A pseudo molecular weight computed by dividing the mass in a mixture or solution by the number of moles in the mixture or solution is called
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
$40\; gms$ of $NaOH$ contains
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
58.5 gms of NaCl contains
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
Amount of substance containing $6.022 \times 10^{23}$ entities is called
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
The law of _____________ states that chemical reactions proceed with fix ratios of the number of reactant and products and products involved in the reaction.
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
The given statement for stoichiometry is “Stoichiometry provides a quantitative means of relating the amount of products produced by a chemical reaction to amount of reaction and vice versa."
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
Nitric acid formation reaction is given as below $3NO_2 + H_2O \to 2HNO3 + NO$ The given reaction is
sat
chemistry
stoichiometry and the mole concept
answered
Jul 4, 2018
by
meena.p
1
answer
A 12.0 of gas sample of gas occupies $19.2\;L$ at STP. what is the molecule weight of this gas ?
sat
chemistry
stoichiometry and the mole concept
answered
Jul 3, 2018
by
meena.p
1
answer
A molar solution is one that contains one mole of a solute in
sat
chemistry
stoichiometry and the mole concept
answered
Jul 3, 2018
by
meena.p
1
answer
Which one of the following pairs of gases contains the same number of molecules
sat
chemistry
stoichiometry and the mole concept
answered
Jul 3, 2018
by
meena.p
1
answer
How much copper can be obtained from 100 g of copper sulphate $(CuSO_4)?$ (Atomic mass of $Cu=63.5\;amu$)
sat
chemistry
stoichiometry and the mole concept
answered
Jul 3, 2018
by
meena.p
1
answer
Calculate the mass of sodium acetate $(CH_3COONa)$ required to make 500 mL of $0.375$ molar aqueous solution . Molar mass of sodium acetate is $82.0245\;g\;mol^{-1}$
sat
chemistry
stoichiometry and the mole concept
answered
Jul 3, 2018
by
meena.p
1
answer
$60\;cm^3$ of oxygen was added to $24\;cm^3$ of carbon monoxide and the mixture is ignited. calculate (i) the volume of oxygen used up (ii) the volume of carbon dioxide fromed .
sat
chemistry
stoichiometry and the mole concept
answered
Jul 2, 2018
by
meena.p
1
answer
From the equation :$N_2+3H_22NH_3$ calculate the volume of ammonia gas formed when 6 litres of hydrogen reacts with excess of nitrogen , all volumes being measured at $STP$
sat
chemistry
stoichiometry and the mole concept
answered
Jul 2, 2018
by
meena.p
1
answer
Which ones of the following statements are true for 2 moles $CO_2$ compound. (Avogadro's Number $=6,02 \times 10^{23})$
sat
chemistry
stoichiometry and the mole concept
answered
Jul 2, 2018
by
meena.p
1
answer
Calculate number of bromide ions in 3 moles of mercury (II) bromide
sat
chemistry
stoichiometry
and
the
mole
concept
answered
Jul 2, 2018
by
meena.p
1
answer
How many moles of molecule are present in 15 g of $C_2H_4$(ethylene) . Given atomic mass of $C=12.0\;amu$ and of $H=1.0\;amu$
sat
chemistry
stoichiometry and the mole concept
answered
Jul 2, 2018
by
meena.p
1
answer
Calculate the number of molecules present in 34.20 grams of cane sugar $(C_{12}H_{22}O_{11})$
sat
chemistry
stoichiometry and the mole concept
answered
Jul 2, 2018
by
meena.p
1
answer
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