Answer: Percent composition is calculated from a molecular formula by dividing the mass of a single element in one mole of a compound by the mass of one mole of the entire compound. This value is presented as a percentage.
Explanation: I hope that helped!
A covalent bond is formed.
Answer: 1
Explanation: Step by Step
The balanced equation for the reaction between HCl and Ca(OH)₂ is as follows;
Ca(OH)₂ + 2HCl ---> CaCl₂ + 2H₂O
stoichiometry of Ca(OH)₂ to HCl is 1:2
mass of Ca(OH)₂ reacting - 5 g
therefore number of moles of Ca(OH)₂ - 5 g / 74 g/mol = 0.068 mol
according to molar ratio
number of HCl moles reacted = twice the number of Ca(OH)₂ reacted
number of HCl moles required - 0.068 x 2 = 0.136 mol
molarity if HCl solution - 0.100 M
there are 0.100 mol of HCl in 1 L
therefore 0.136 mol in - 0.136 mol / 0.100 mol/L = 1.36 L
volume of 0.100 M HCl required - 1.36 L