Question

STUDY GUIDE - MOLES Here to determine how much Xeo, forms, simply convert the 0.0412 mol Xeos the XeF. reacting, into grams: 0.0412 mol Xerox 1708XO - 7.37 g Xeos 7) The amount of the excess reactant, water, reacted can be calculated from 0.0412 mol XeF: 12 mol Xco, formed by all of The remaining excess water is be calculated from the limiting reactant, 0.0412 mel Xerx 3 mol H20 18.02 -221 H2O (reacted) 1 mol Xer, * 1 molde - 2.23 g H20 (reacted) 2.5 g H2O (total) - 2.23 g H20 (reacted) -0.3 g H20 (excess) COMTINUE STUDY GUIDE C 6. For the equation 2KCI+ CaF2 → 2 KF +CaCl2, 55.1 mol KCl is reacted wit CaF2. 1) What is the limiting reactant? 2) How many moles of KF will be produced? 7. For the equation Fe + 6HNO3 Fe(NO3)3 + 3NO2 + 3H20 21.4 grams of HNO3 is reacted with 20.3 grams of Fe. a) What is the limiting reactant?

Answer 1

Civen reaction QK Cl + Cafe - QKF +Gq 55.1 mol 46.7 mol ② Ist of all we find limiting reagent, one of the Simplest way to identify a limiting reagent is to Compare how much product each reacto produce. The reactant which produred less amount of product is called limiting reagent. I limiting reagent in a chemical reaction is the Substance that is totally consumed when the Chemical reaction is completed. The amount of Product formed is limited by this reagent, since the reaction cannot be continue without it. using above equation. 551 mol KCl x & mole Kf = 5511 mole of KF 1 Imole kee = 93.4 mole of kf 46.7 mole Caft 2 mole kf 1 Imole of Cef So, @ kel is limiting reagent 551 mol of Ef will produced. 55.1 mol

1. Fe + 6H Noz - Fe(NO3)₂ + 3 NO2 +3120 2013g aling Ist of all we find limiting reagent, one of the simplest way to identify a lemesting reagent is to compare how much product each reactant will produced. The reectant which produced less amount of product is called limiting reagent using abore equation 20.39 fe x Imole pe Inok pe(NO3)3 242 g Fe(NO3l 87.725 g Fe(NEB), 1 56gre . Imole fe . Imole fe(NO3)2 mole fe(nosh 2429 reclush = 13.700 g Fe (m3/3 5 x 21.4g HNOX Imole HNO 639 MB ' imole felmosh 6mole HNB 242 g Fe(N3/ . Imole remol » so, thoz is limiting reegent.