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Calculate theoretical yield (in both moles and grams).
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- The pharmacy receives an order for 86% isopropyl alcohol. In stock, the pharmacy has 95% isopropyl alcohol, 76% isopropyl alcohol, 54% isopropyl alcohol, and distilled water. How many milliliters of 95%, 76% and 54% isopropyl alcohol respectively are required to prepare 2 L of 86% isopropyl alcohol? O a. 1000, 800, 200 mL O b. 1400, 300, 300 mL O c. 1800,150,50 mL O d. O e. Which 1600, 200, 200 mL 700, 150, 150 mLIf Bud Light is 4.3% abv, how many grams of ethanol (CH3CH2OH) are in each 355 mL can? The density of ethanol is 0.789 g/mL.b) % yield of ethanol from molasses (we used 50 mL of the molasses solvent for both distillation) c) % yield ethanol from sugars, assuming approximately half of molasses is reactive sugars C12H22O11 (sucrose) -> 4 CH3CH2OH + 4 CO2 my Simple distillation % ethanol was 100% (0.774) and my fractional distillation % ethanol was 100% (0.774).
- Q2. You want to purify 10 grams of benzoic acid that has been contaminated with 0.2 g of salicylic acid. You are given the following data: Compound Solubility in water at 20 °C (g/10 ml) Solubility at 100 °C (g/10 ml) Benzoic Acid 0.029 0.680 Salicylic Acid 0.029 0.22 0.680 6.67 b) How much benzoic acid will crystallize after cooling to 20 °C (show calculations)CH3 H CH3 CH;CHCH,CH2OH CH;COH CH;CHCH,CH,OCCH3 + H2O MW 88.15 g/mol density 0.809 g/mL MW 60.05 g/mol density 1.05 g/mL MW 130.19 g/mol density 0.876 g/mLGrams of solute per 100 g H₂O 140 130 120 110 100 90 80 70 60 50 40 30 20 10 NH37 NaNO3 KCIO3. KNO3 NHẠC KCI Naci -Ce₂(SO4)3 0 10 20 30 40 50 60 70 80 90 100 6. How many grams of KCI can be dissolved in 100g of water at 80°C? 7. At 40°C, how much KNO3 can be dissolved in 100g of water? 8. At 30°C, 90g of NaNO3 is dissolved in 100g of water. Is this solution saturated or unsaturated? 9. How could you tell by looking at a solution that was saturated? 10. A vinegar brand contains 4% acetic acid by volume. If the density of vinegar is 1.05 g/ml, how many grams of acetic acid are in a 250.0 mL of vinegar? 19
