62. The numbers preceding the formulas in chemical equations are referred to as the coefficients. 63....
16. How many grams of steam and iron must react to produce 375 g of magnetic iron oxide, Fe3O4? 3 Fe(s) + 4 H2O(g) Fe3O4(s) + 4 H2(g) 18. Mercury can be isolated from its ore by the reaction 4 HgS + 4 CaO → 4 Hg + 3 CaS + CaSO4 (a) How many moles of CaS are produced from 2.5 mol CaO? (b) How many grams of Hg are produced along with 9.75 mol of CaSO4? (c) How many...
1. When 15.4 g of aluminum (26.98 g/mol) reacts with 14.8 g of oxygen gas (32.00 g/mol), what is the maximum mass (in grams) of aluminum oxide (101.96 g/mol) that can be produced? 4 Al(s) + 3 O2(g) → 2 Al2O3(s) 2. If 14.1 moles of Cu and 48.7 moles of HNO3 are allowed to react, how many moles of excess reactant will remain if the reaction goes to completion? Cu + 8 HNO3 → 3Cu(NO3)2 + 2NO + 4H2O...
Fill in the blanks with the correct coefficient to balance the
chemical equations below. Fractional coefficients will not be
accepted. Coefficient must be reduced to the lowest whole number if
possible and leave blank empty if the coefficient should be
one.
NH3 (g)+ _ CuSO4 (s) + ㅡㅡ KI (s) → ㅡㅡ Cul (s) +--12 (s) +--K2SO4 (s) CO2tg) + H2O(g) If 6.0 mol of CO2 are produced. For the reaction: C2H4(g) + O2(g) → how many moles of 02...
1. when the chemical equation Fe2O3(s)+C(s) (arrow) Fe(s) +CO(g) is balanced, the coefficients in order will be: 2. In a chemical reaction, the symbol "(s)" may be read as: a)solution b) solid c) soluble d) state 3. A reactant in the chemical reaction Cl2 (g) + 2NABr (aq) arrow 2NACl(aq) + Br2(aq) is: a) chlorine b) sodium chloride c) bromine d) none of the above 4. The reaction Al2O3(s) +6HCl(aq) arrow 2AlCl3(aq) +3H2O(I) is a balanced equation. 5. What is...
Need some help - PCl5 can be produced by the reaction of phosphorus trichloride with excess chlorine as follows: PCl3 + Cl2 → PCl5 If the actual yield is 127 g of PCl5 and the percent yield is 84.8%, what mass of PCl3 must be used? Hint: Use actual yield and percent yield to find theoretical yield and proceed from there. a. 150 g b. 98.8 g c.108 g d.83.8 g e.71.1 g 2. If the reaction N2 + 3...
Need some help - PCl5 can be produced by the reaction of phosphorus trichloride with excess chlorine as follows: PCl3 + Cl2 → PCl5 If the actual yield is 127 g of PCl5 and the percent yield is 84.8%, what mass of PCl3 must be used? Hint: Use actual yield and percent yield to find theoretical yield and proceed from there. a. 150 g b. 98.8 g c.108 g d.83.8 g e.71.1 g 2. If the reaction N2 + 3...
In the following chemical reaction, 2 mol of A will react with 1 mol of B to produce 1 mol of A2B without anything left over: 2A+B→A2B But what if you're given 2.8 mol of A and 3.2 mol of B? The amount of product formed is limited by the reactant that runs out first, called the limiting reactant. To identify the limiting reactant, calculate the amount of product formed from each amount of reactant separately: 2.8 mol A×1 mol...
Question 1 10 pts Consider the general chemical equation: A+2B3 C How many moles of C are produced from 1 mol of A? o 2 3 10 pts D Question 2 Given the decomposition of hydrogen peroxide, calculate the moles of oxygen gas produced from 5.00 mol of H202 2 H2020) 2 H20) 028) 1 mol 2.5 mol 5 mol 10 mol 10 pts DQuestion 3 How many moles of propane gas, C3Ha. react with 1.29 mol of oxygen gas?...
Part A Determine the balanced chemical equation for this reaction. C8H18(g)+O2(g)?CO2(g)+H2O(g) Enter the coefficients for each compound in order, separated by commas. For example, 1,2,3,4 would indicate one mole of C8H18, two moles of O2, three moles of CO2, and four moles of H2O. 2,25,16,18 SubmitHintsMy AnswersGive UpReview Part Correct It is important to balance a chemical equation before using it for calculations. Checking that equations are balanced will help you avoid many errors in chemistry problems. Balanced chemical equation...
Question#1: Aspirin is prepared by reaction of salicylic acid (C7H6O3)(C7H6O3) with acetic anhydride (C4H6O3)(C4H6O3) according to the following equation: C7H6O3Salicylicacid+C4H6O3Aceticanhydride→C7H6O3Salicylicacid+C4H6O3Aceticanhydride→ C9H8O4Aspirin+CH3COOHAceticacid A) How many grams of acetic anhydride are needed to react with 7.50 gg of salicylic acid? B)How many grams of aspirin will result? C) How many grams of acetic acid are formed as a by-product? Question #2: Aluminum reacts with chlorine gas to form aluminum chloride via the following reaction: 2Al(s)+3Cl2(g)→2AlCl3(s)2Al(s)+3Cl2(g)→2AlCl3(s) You are given 26.0 gg of aluminum...