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To get the coefficients for chemical reaction we have to balance the equation.
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- A mixture containing only Al2O3 (FM 101.96) and Fe2O3 (FM 159.69) weighs 2.019 g. When heated under a stream of H2, the Al2O3 is unchanged, but the Fe2O3is converted to metallic Fe plus H2O(g). If the residue weighs 1.774 g, what is the weight percent of Al2O3 in the original mixture?How much iron oxide (Fe2O3) is needed to make a 500 mg fuel rich mixture of aluminum (Al) and iron oxide that has an equivalence ration of 1.3? What is the actual F/O ratio for this mixture? Please provide only typed answer solution no handwritten solution needed allowedIs 31-33 true or false
- Sample Physical Appearance 0.1 M Na2CO3 0.1 M CaCl2 Na2CO3 + CaCl2 mixture Part II filtrate + CaCl2How to manipulate formula mgh=1/2mv2 to find velocity and mass2 CoCl2(aq) + 8 NH3(aq) + H2O2(aq) + 2 NH4Cl(aq) 2 [Co(NH3)5Cl]Cl2(s) + 2 H2O(l) In a 50-mL Erlenmeyer flask, cobalt(II) chloride hexahydrate (1.075 g), an aqueous solution of ammonia (1.2 mL, 15 M), ammonium chloride (0.505 g), and hydrogen peroxide (1.0 mL, 30.0% (w/w), density = 1.10 g/mL) were combined. After completion of the reaction, [Co(NH3)5Cl]Cl2 (0.450 g) was isolated. What was the percent yield of the product?
- C2H2- 227.4 H2- 0 C2H6- (-84)Product-related impurities can be identified using SV-AUC.True/FalseWhich of the following statements is false?A. Temporary hardness is the hardness caused by calcium and magnesium carbonate and bicarbonates.B. Temporary hardness can be removed by boiling water.C. Permanent hardness is the hardness due to chloride, nitrate, sulphate, silicate and phosphates of calcium and magnesium.D. Among the hardness units, there is equation 1.25 AS = 1 IS = 1.79 FS.
- Aleks data for AgBrO3 is 5.38 x 10^-5Show your work: Balance the following chemical equation: C7H16O5 + O2 ---> CO2 + H2OHow would each of the following errors affect the determination of the molar mass of the unknown (Increase/Decrease/No effect)? a. Thermometer reads 2.0o higher than the true temperature. b. Some of the t-butanol was unknowingly spilled after it had been weighed but before the solute was added. 3. A student accidentally added acetylsalicylic acid (MW = 180.157 g/mol) rather than salicylic acid (MW = 138.121 g/mol), if no other mistakes were made, how would this error affect the determined molal freezing point depression constant for t-butyl alcohol (Kf)? 4. Based on the Tf and Kf you determined for t-butyl alcohol, predict the freezing point of a t-butyl alcohol solution containing 0.530 m NaCl. Assume 1.9 is the van’t Hoff factor for NaCl in t-butyl alcohol. Show your work.