Tag: percent composition
Questions Related to percent composition
The definite number of water molecules which enters into a chemical combination with the substance when the substance is crystallized from its hot saturated solution is called ________.
A salt associated with water of crystallization is known as a:
Water of crystallization is present in a definite :
Heated calcium sulphate with half a water of crystallization is commonly called as :
Since there are 10 water molecules in washing soda, hence it is known as:
Potash alum contains ___________ number of water molecules.
Copper sulphate pentahydrate is commonly called as____, whereas ferrous sulphate heptahydrate is commonly called as _____ .
Compound Q contains $40\%$ carbon by mass.
What could Q be?
$1$. glucose, $C _6H _{12}O _6$
$2$. starch, $(C _6H _{10}O _5) _n$
$3$. sucrose, $C _{12}H _{22}O _{11}$.
What is % composition of a substance?
What is the percent of composition of the compound that forms when $222.7g$ of N combines compleletly with $77.4g$ of O?