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- What volume of 0.250 M H2SO4 solution is required to neutralize a solution that contains 5.00 g of CaCO3?What volume of 0.200 M NaOH is necessary to neutralize the solution produced by dissolving 2.00 g of PCl3 is an excess of water? Note that when H3PO3 i5 titrated under these conditions, only one proton of the acid molecule reacts.1. Methanol is a high-octane fuel used in high-performance racing engines. Calculate AG for the reaction 2CH;OH(g) + 3O2(8) 2CO,(8) + 4H,O(8)
- From Part A: Mass of KxFe(C2O4)y · zH2O prepared : 5.600 g Mass of FeCl3 : 1.60 g From Part B: % Potassium in compound : 23.23 % % Iron (from ion exchange & titration vs. NaOH) : 8.25 % From Part C: % Oxlate : 56.78 % Calculate the % water of hydration :Solid boron can be extracted from solid boron oxide by reac- tion with magnesium metal at a high temperature. A second prod- uct is solid magnesium oxide. (a) Write a balanced equation for the reaction. (b) What mass of boron can be produced when 125 kg of boron oxide is heated with 125 kg of magnesium?Using the following equation: Pb(SO4)2 + 4 LİNO3 > Pb(NO3)4 + 2 LizSO4 How many grams of lithium nitrate will be needed to make 250 grams of lithium sulfate? B I U v A + v Paragraph 19рх FQ Lato (Recom... v h.
- Balance the following reactions: A. Pb(CH3CO0)2 + Na,SiO3 → PbSiO3 + NaCH3COO B. C2H5OH + 02 CO2 + H20 Paragraph B IU A Lato (Recom... 19рх ... 99+ lih IIWrite the balanced NET ionic equation for the reaction when aqueous BaCl2 and aqueous (NH4)2SO, are mixed in solution to form aqueous NH,CI and solid BaSO4. O4- 3. 2. 2+ 3+ 4+ 1 2. 3 4 6. 7 8. 9. 4 7 8. 69 1. (s) (1) (g) (aq) Ba CI Reset • x H2O Delete SI 5.Fe2S3 -----> 2Fe + 3S What mass of sulfur (S) is produced from the thermal decomposition of 12.5g of Fe2 S3?
- Qu The amount of calcium carbonate with MM:100.1 g/mol in the ore dolomite can be determined by gravimetry. The dolomite sample is dissolved in acid and the calcium ions (Ca2*) present are precipitated as calcium oxalate (CaC204) with MM: 128.1 g/mol. The calcium oxalate is filtered, dried and strongly heated to form calcium oxide (Cao) with Formula Mass (FM) = 56.1 g mol". In one analysis the mass of dolomite used was 3.72 %3D g. The mass of calcium oxide formed was found to be 1.24 g. Questions: 1. What is the chemical formula of the analyte in this problem? 2. What is precipitating agent? 3. Give the molecular formula of the precipitate measured in this problem. g. 4. What is the mass(g) of the analyte? Show your answer in correct no. of SF. 5. What is the % w/w of the analyte in the sample? Give the answer in correct answer of SF. 026.9 033.3 056 060.1 02.23The accompanying photo shows the reaction between asolution of Cd(NO3)2 and one of Na2S. (a) What is the identityof the precipitate? (b) What ions remain in solution?(c) Write the net ionic equation for the reaction. (d) Is this aredox reaction?Complete and balance the following equations: (a) CaO(s) + H2O(1) (b) Al>O3(s) + H*(aq) (c) NazO2(s) + H20(I) (d) N2O3(8) + H20(1) (e) KO2(s) + H,0(1) (f) NO(8) + O(8)