Advertisements
Advertisements
Question
Which of the following pair of elements represents a mole ratio of 1 : 1 ?
Options
10 g of calcium and 12 g of magnesium
12 g of magnesium and 6 g of carbon
12 g of magnesium and 6 g of carbon
20 g of sodium and 20 g of calcium
Advertisements
Solution
12 g of magnesium and 6 g of carbon
12 g of magnesium and 6 g of carbon will have a mole ratio of 1 : 1.
APPEARS IN
RELATED QUESTIONS
Calculate the molar mass of the following substance:
Hydrochloric acid, HCl
Choose the correct answer from the options given below:
The ratio between the number of molecules in 2g of hydrogen and 32g of oxygen is:
[Given that H = 1, O = 16]
One of the following elements has an atomicity of ‘one’. This element is :
How many moles are 3.6 g of water ?
Fill in the following blanks :
60 g of carbon element are .............. moles of carbon atoms.
How many moles are there in 34.5 g of sodium ? (Atomic mass of Na = 23 u)
Calculate the mole ratio of 240 g of calcium and 240 g of magnesium. (Ca = 40 u ; Mg = 24 u)
The relative atomic mass of Cl atom is 35.5 a.m.u. Explain this statement.
The equation for the burning of octane is:
\[\ce{2C8H18 + 25O2 -> 16CO2 + 18H2O}\]
- How many moles of carbon dioxide are produced when one mole of octane burns?
- What volume, at STP, is occupied by the number of moles determined in (a)?
- If the relative molecular mass of carbon dioxide is 44, what is the mass of carbon dioxide produced by burning moles of octane?
- What is the empirical formula of octane?
Define the term:
Relative molecular mass
