Question

What is the percent yield of water if we start with 5 g C, Hg and produce 6.13 g H,O? The end point in a titration of a 58 mL sample of aqueous HCl was reached by the addition of 25 mL of 0.83 M NaOH titrant. The reaction proceeds by the following equation. C3H8 +502 — 3CO2 + 4H20 Select the correct answer below: HCl(aq) + NaOH(aq) + NaCl(aq) + H2O(1) 0 63.905 What is the molar concentration of HCl? 75.03% • Report your answer with two significant figures. 84.50% 93.50% Provide your answer below: MORE INSTRUCTION SUBMIT Content attribution Question Calculate the amount of product moles generated Question How many molecules of HCl are required to react with 2.50 moles Zn? When an aqueous solution of strontium chloride is added to an aqueous solution of potassium sulfate, a precipitation reaction occurs. Write the balanced net ionic equation of the reaction. Zn + 2 HCI — ZnCl2 + H2 • Use 6.022 x 1023 mol" for Avogadro's number. • Your answer should have three significant figures. • Include charges on the ions, where applicable. • Include coefficients only when they are different than 1. Provide your answer below: Provide your answer below: molecules MADE WITH (aq) + (aq) Oleto Editor

Answer 1

According to HOMEWORKLIB RULES we have to answer only first one problem

HCl + NaOH = NaCl + H2O

Number of moles NaOH = Molarity * volume in L

= 0.83 * 25/1000

= 0.02075 moles NaOH

At equivalence mole of NaOH is equal to mole of HCl

0.02075 moles NaOH *1/1

= 0.02075 moles HCl

Molarity = number of moles / volume in L

= 0.02075 moles HCl/ 58 ML*1 L/1000 ml

= 0.35775862 M

= 0.36 M