|
How many gram of neutron is present in 10 g sample of heavy water?
|
|
0
|
3825
|
November 25, 2016
|
|
Explain why the number of atoms in one mole of hydrogen gas
|
|
1
|
3291
|
November 25, 2016
|
|
Calculate the number of moles in 112 g of iron
|
|
1
|
5134
|
November 25, 2016
|
|
What mass of silver nitrate will react
|
|
1
|
2623
|
November 25, 2016
|
|
How do we express number of particles in - terms of moles?
|
|
1
|
5328
|
November 25, 2016
|
|
Calculate the molecular mass for each one of them
|
|
1
|
6121
|
November 25, 2016
|
|
Which would weigh more
|
|
1
|
709
|
November 25, 2016
|
|
Find the mass of each one of the following
|
|
1
|
1063
|
November 25, 2016
|
|
What is the mass of 0.5 mole of NH3?
|
|
1
|
11038
|
November 25, 2016
|
|
Calculate the number of molecules of carbon dioxide are not equal in number of moles
|
|
1
|
2084
|
November 25, 2016
|
|
Calculate the percentage composition of the compound
|
|
1
|
799
|
November 25, 2016
|
|
Calculate the following quantities in 5.6 g of nitrogen
|
|
1
|
7724
|
November 25, 2016
|
|
Calculate the number of moles present in:
|
|
1
|
3408
|
November 25, 2016
|
|
Find out the percentage composition of each element
|
|
1
|
1749
|
November 25, 2016
|
|
Define Avogadro's number. Write its value
|
|
1
|
3323
|
November 25, 2016
|
|
Define formula unit mass of a substance
|
|
1
|
2764
|
November 25, 2016
|
|
Find the formula of ammonia molecule
|
|
1
|
1573
|
November 25, 2016
|
|
Calcium carbonate decomposes on heating to form calcium oxide and carbon dioxide
|
|
1
|
8579
|
November 25, 2016
|
|
Define formula unit mass
|
|
1
|
14443
|
November 25, 2016
|
|
State the law of constant proportion
|
|
1
|
14130
|
November 25, 2016
|
|
Write the formulae and names of the compounds by the following ions:
|
|
1
|
567
|
November 24, 2016
|
|
Write the chemical formulae of following compound
|
|
1
|
3002
|
November 24, 2016
|
|
State three points of differences between an atom and a molecule
|
|
0
|
5642
|
November 24, 2016
|
|
Calculate the number of atoms
|
|
1
|
551
|
November 24, 2016
|
|
Calculate the number of moles for the following:84 g of nitrogen atoms
|
|
1
|
5079
|
November 24, 2016
|
|
Calculate the number of moles for the following:
|
|
1
|
5674
|
November 24, 2016
|
|
Calculate the mass of 1 molecule of oxygen gas
|
|
1
|
15524
|
November 24, 2016
|
|
The mass of a single atom of an element is 2.65x${10}^{23}$g
|
|
1
|
1639
|
November 24, 2016
|
|
Calculate the number of molecules in 11 g of $C{{O}_{2}}$
|
|
1
|
596
|
November 24, 2016
|
|
State the formula of the compound
|
|
1
|
1645
|
November 24, 2016
|