If the following equation is properly balanced with the smallest whole-number coefficients, what is the coefficient of Bi3+? Mn2*(aq) + BiO3 (aq) – MnO4 (aq) + Bi3* (aq) 5 3. 2. O O O
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Q: 7. MnO4 + C204 2 + H*→ Mn++ + CO2 + H2C
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- balance: KMnO4(aq) + Na2SO3(aq) + KOH → MnO2 + Na2SO4(aq) ; the coefficient for Na2SO3 is: (hint: keep MnO2 intact) A. 2 B. 1 C. 3Balance the following equation by selecting the coefficients in the dropdown boxes. The coefficient for Al isa. 1b. 2c. 3d. 4The coefficient for HBr is a. 1b. 2c. 3d. 4e. 5f. 6The coefficient for AlBr3 is a. 1b. 2c. 3d. 4The coefficient for H2 is a. 1b. 2c. 3d. 42 MnO4- (aq) + 5 C2O42- (aq) + 16 H+ (aq) « 2Mn2+ (aq) + 10 CO2 (g) + 8 H2O(l) 0.4040 g of the unknown compound (K2Zy(C2O4)z . nH2O) was dissolved in 100.0 mL water to make a solution. It was then heated to 80oC and titrated with a KMnO4 solution as shown below: The molarity of KMnO4 = 0.0.02321 M Volume used = 29.25 mL A.) What is the % Oxalate by mass for the unknown solid titrated?
- Iron(III) was reduced to iron(II) by chromium(III) in acidic solution according to the following unbalanced reaction: Cr3+(aq) + Fe3+(aq) -> Fe2+(aq) + chromium oxide compound (aq) The experiment requires 66.9 g of Fe3+ to be completely reduced by 20.8 g of Cr3+. What is the oxidation state of the chromium in the chromium oxide product? What is the possible chromium oxide product? a. Cr2O3 b. Cr2O72- c. CrO d. Cr2O42+ e. CrO2A chemist performs a gravimetric analysis. The chemist combines 1.00L1.00L of 2.00MAgNO3(aq)2.00MAgNO3(aq) with 1.00L1.00L of 4.00MNaCl(aq)4.00MNaCl(aq) in an Erlenmeyer flask. Both the AgNO3(aq)AgNO3(aq) solution and the NaCl(aq)NaCl(aq) solution are colorless. After the mixture has been stirred, a cloudy white substance is observed at the bottom of the flask. What is the expected mass of AgCl(s)AgCl(s), in grams, assuming that the yield is 100%100%? In the box, enter the mass to the nearest gramDissolve 5.0 g aluminium in 150 cm3 of 25 m/m % (with density of 1.06 g/ cm3) sulfuric acidsolution. What is the mass of the produced Al2(SO4)3 ?MM[Al]=26.98 g/molMM[H2SO4]=98.08 g/molMM[Al2(SO4)3]=342.2 g/mol
- Sodium carbonate is a reagent that may be used to standardize acids. In such a standardization it was found that a 0.498-g sample of sodium carbonate required 22.6 mLmL mL of a sulfuric acid solution to reach the end point for the reaction. Na2CO3(aq)+H2SO4(aq)→H2O(l)+CO2(g)+Na2SO4(aq)Na2CO3(aq)+H2SO4(aq)→H2O(l)+CO2(g)+Na2SO4(aq) What is the molarity of the H2SO4H2SO4?Calculate the percent purity of copper in an ore in terms of Cu2O from the given data: Weight of copper ore - 1.20-g Volume of Na2S2O3 used - 40.00-mL (1.00-mL Na2S2O3 ≈ 0.004175-g KBrO3) Molar Masses: KBrO3 = 167.0 Cu2O = 143.1 Note: Reaction between KBrO3 and Na2S2O3 happens based on the pattern of reaction in problem no.2. Bromate is used in place of iodate.32 What is a when the reaction Fe2O3 + C → Fe + a CO2 is balanced with the simplest integer coefficients? a) 5 B) 1/2 NS) 2nd D) 4 TO) 3
- The following reaction occurs in basic solution: _ H2O(aq) + _ MnO4–(aq) + _ ClO–(aq) → _ MnO2(s) + _ ClO4–(aq) + _ OH–(aq) When the equation is properly balanced, what is the sum of the lowest whole-number coefficients? a. 9 b. 10 c. 20 d. 12 e. 6Hello, can this question please be explained. Determine the products of the following reaction and balance the final equation K2CO3 (aq) + NiF2 (aq) → based on your final answer, select the products with the proper coefficients Question 5 options: A) KF(s) B) 2KF (aq) C) 6 KF (aq) D) NiCO3 (s) E) Ni2(CO3)3 (aq) F) Ni2(CO3)3 (s)K2Cr2O7 + 7H2C2O4·2H2O → 2K(Cr(C2O4)2(H2O)2) + 6CO2 + 17H2O Calculate theoretical yield of: K[Cr(C204)2(H20)2] · 2H2O (3 g of oxalic acid dihydrate (H2C2O4·2H2O) )(1 g of potassium dichromate (K2Cr2O7) )(20 mL of 95% ethanol)