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Take Test: Assignment #2 W18 × f Facebook https://uoit unch.jsp?course_assessment id-_29018 a Search UNIVERSITY OF ONTARIO TITUTE OF TECHNOLOGY Raphael Arian 1 My Institution Content Collection Help O decreases, decreases QUE STION 8 1 points Save Answer According to the balanced chemical equation 5 H2C204(aq) + 2 MnO4-(aq) + 6 H+(aq) 10 CO2(g) + 2 Mn2+(aq) + 8 H20() 0.3500 grams of oxalic acid, H2C204 will react with O 97.2 mL 38.9 mL O 77.7 mL O 15.5 mL mL of 0.100 M potassium permanganate, KMn04 solution. QUE STION 9 1 points Save Answer A salt bridge is used to O allow the ion flow necessary for cell neutrality. control whether the cell is electrolytic. pronde reactants in a fuel cell. O determine the direction of the cell reaction QUESTION 10 1 points Save Answer Click Save and Submit to save and submit. Click Save All Answers to save all answers. Save All Answers Save and Submit 2:01 PM O Type here to search ^4x ENG 2018-02-04

Explanation / Answer

Ans 8 : 15.5 mL

Number of moles of oxalic acid = 0.3500 / 90.03 = 0.00389 mol

5 moles of oxalic acid reacts with 2 moles of KMnO4

So 0.00389 mol of oxalic acid will react with : (0.00389 x 2) / 5

= 0.001556 mol of KMnO4

Molarity = no. of moles/ volume of solution in L

0.100 = 0.001556 / V

V = 0.01556 L

or 15.5 mL

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