According to the balanced chemical equation 5H_2C_2O_4(aq) + 2 MnO_4^-(aq) + 6 H

Question

According to the balanced chemical equation 5H_2C_2O_4(aq) + 2 MnO_4^-(aq) + 6 H^+(aq) rightarrow 10 CO_2(g) + 2 Mn^2+(aq) + 8 H_2O(l) 0.3500 grams of oxalic acid, H_2C_2O_4 will react with ____ moles of permanganate, MnO_4^- A) 0.001554 B) 0.003887 C) 0.007774 D) 0.009718 What are the possible values of l if n = 5? A) 5 B) 0, 1, 2, 3, or 4 C) -4, -3, -2, -1, 0, +1, +2, +3, or +4 D) -5, -4, -3, -2, -1, 0, +1, +2, +3, +4, or +5 The electronegativity for both sulfur and carbon is 2.5. Therefore the compound CS_2 would be expected to A) be ionic with C as the anion. B) be ionic with C as the cation. C) have nonpolar covalent bonds between C and S. D) have polar covalent bonds between C and S. Based on the indicated electronegativities, arrange the following in order of increasing ionic character (from left to right): CsBr, LaBr_3, PBr_3, MgBr_2. A) CsBr

Explanation / Answer

36) Number of moles of oxalic acid,n= mass/molar mass

n= 0.3500 g/(90g/mol)

= 0.00388 mol

From balanced reaction 5 moles oxalic acid reacts with 2 moles of permanganate

0.00388 moles of oxalic acid reacts with M moles of permanganate

M=(0.00388*2)/5

= 0.001554 mol

Therefore option (A) is correct

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