4 g of hydrogen is burnt with 4 g of oxygen. How many grams of water can be formed? - Sri Chaitanya Infinity Learn Best Online Courses for NCERT Solutions, CBSE, ICSE, JEE, NEET, Olympiad and Class 6 to 12

$2 H_{2} + O_{2} ⟶ 2 H_{2} O$

$2$ moles of hydrogen reacts with $1$ mole of oxygen to give $2$ moles of water

Given $4 g$ of hydrogen which is $= 4 / 2 = 2$ moles that is react with $32 g$ of oxygen to form $36 g$ of water

Given that oxygen is also $4 g$ , so oxygen is the limiting agent

$4 g$ oxygen $= 4 / 32 = 1 / 8$ moles

Water produced $=$ no. of moles of oxygen $x$ no. of moles of hydrogen $= 1 / 8 \times 2 = 1 / 4$ mole

$4 g$ of oxygen will produce $4 / 32 \times 36 = 4.5 g$ of water

Hence the correct option is (C).

$4 g$ of hydrogen is burnt with $4 g$ of oxygen. How many grams of water can be formed?