Stoichiometry notes fir neet exam

Content ● Define stoichiometry. ● Uses ● Mole concept ● Avogadro's number ●Problems ●Gas Lussacs ●Limiting reactant and problems ●Percentage yield and problem Calculate mass of 0.5 mole of CO₂ Write relation between moles and Avogadro's number. Q. If 3.5 moles of methanol burnt in O2, calculate A. How many moles of O2 is used B. How many moles of water produced How many moles of the following are required to manufacture 5.0 moles of NH3. Iron can be produced from Fe2O3 by reacting with CO. CO2 is produced in this reaction. What mass of iron can be formed from 425 g of iron ore. The main engine if Indian space shuttle are powered by liquid Hydrogen and liquid Oxygen. If 1.02×10⁵ kg of liquid Hydrogen is carried on particular launch, what mass of liquid Hydrogen for all Hydrogen burn. How many moles of Oxygen molecule are there in 50 dm³ of Oxygen gas at STP What volume of 0.80 moles of N2 gas occupy at STP. Gay-Lussac’s Law of Combining Volumes states that when gases react to →Limiting reactant is the reactant that gets completely used up first in a ch 1. 200 g of K2Cr2O7 was reacted with 200 g of H2SO4 . Calculate A. Mass of atomic Oxygen produced B. Mass of reactant left unreacted Magnesium metal reacts with Sulphur to produce MgS. How many grams of MgS can be made from 1.5 of Mg and 1.5 g of Sulphu Aluminium reacts with bromine to firm AlBr3. If 15.8 g of Al and 55.6 g of Br2 are available for reaction then determine A.Limiting reactant. B. The mass of AlBr3 Suppose 1.87 moles of NH4Cl were reacted with 1.35 mole of CaOH2. How many grams of CaOH2 are left unreacted? 1.274 g of CuSO4 when reacted with excess of Zn metal yield of 0.392 g of Cu metal was obtained. Calculate percentage Yield