Question

Assignment Score: 375/800 Resources O Hint Check Answer < Question 8 of 8 > In a chemical reaction, exactly 2 mol of substance A react to produce exactly 3 mol of substance B. 2A — 3B How many molecules of substance B are produced when 25.2 g of substance A reacts? The molar mass of substance A is 23.7 g/mol. Step 1: Convert the mass of A to moles. moles of A: Step 2: Convert the number of moles of A to the number of moles of B. moles of B: mol bout us Careers vacy poc terms of use contact us help MacBook Pro

Answer 1

2A- 38 Step1: Convort the mass of A to moles Formula moles & Mass molar man = 25-29 23. 7 g/mol = 1.06 moles Moles of A = 1:06 moles] Step 2: Convent the of moles of A to the number of moles of B. from the equation QA 3B 2moles 3 mols We can say that 2 moles À Can produce = 3 moles of B in 1.06 moles of A can produce = 3x106 moles ofB x podious grusof youg = 1.59 moles med [nder & B 1159 moles Step 3 : convert the number of moles of B to molecules &B. la The number of molecules in imoli = 6.022 x 10 mokcely The number 4 melecules in 1.59 md=(1-598001) XC6-022 23 wrancia x 18 indeed = 9.57 x 10 molecules ) I molecules of B = 9.57x10 molecules / 23 23