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- Approximately 12 billion kilograms of phosphoric acid (H3PO4) are produced annually for fertilizers, detergents, and agents for water treatment. Phosphoric acid can be prepared by heating the mineral fluoroapatite (Ca5(PO4)3F) with sulphuric acid in the presence of water.Ca5(PO4)3F + 5H2SO4 + 10H2O → 3H3PO4 + 5CaSO4.2H2O + HFIf every kilogram of fluoroapatite yields 374 g of phosphoric acid, what is the percent yield?Imagine that you are given 0.2500 g of a sample of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O). You very carefully heat the compound for an extended period of time to drive off water, after which you determine the mass of the remaining solid to be 0.1598 g. Determine whether the data given confirm the formula of the hydrate. You must show any relevant calculationThe fuel tank of an automobile contains 62.0 kg of gasoline. If the gasoline reacts completely with excess oxygen (from the air) to form CO2 and H2O, what is the total mass of the products? For simplicity, assume that gasoline is comprised of 100% octane.(C8H18).
- Diiodine pentoxide is used in respirators to remove carbon monoxide from air. I2O5(s) + 5CO(g) → I2(s) + 5CO2(g)a) What mass of carbon monoxide could be removed from air by a respirator that contains 50.0 g of diiodine pentoxide, and what mass of I2 would remain in the respirator?Suppose you are hired by the Environmental Protection Agency as an engineer to measure sulfur dioxide (SO2) emissions in a small industrial power plant. And suppose you analyze a gas sample and get the following composition: 75.66% N2, 10.24% CO2, 8.27% H2O, 5.75% O2, and 0.0825% SO2. You show these figures to the factory clerk the next day, and he insists that this analysis is erroneous and states that the fuel is natural gas, contains methane and ethane and does not contain sulfur. You ask if another fuel is used, and sometimes they say they use fuel as fuel, but at the time of analysis they say that this fuel is not used. However, your measurements show that the enterprise is using fuel at the time of measurement, and the responsible person accepts this later and accepts that they have made mistakes.a) Calculate the molar ratio of carbon / hydrogen in the fuel and use the result to prove that the fuel cannot be natural gas.b) Assuming that C, H and S are the elements present in the…In the synthesis of N(CH3)4Ix, what is the mole ratio of the two reactants used? Write a chemical equation for the reaction and state the expected value of x. Also calculate the yield of the synthesis
- What is the coefficient of CO 2 when the following equation is properly balanced with the smallest set of whole numbers? C 4H 10 + O 2 ---> CO 2 + H 2O1. Oxygen bleach acts in the release of oxygen which best works in hot water mixture. Which of the following bleach or its derivative could be a potential for oxygen bleaching? -OCl- NaOH NaOCl -O²- H2O2 2. In the production of ceramic, silicon carbide and silicon dioxide are being reacted at high temperature. In the process, carbon monoxide is also produced. After the reaction of 100.0 kg of silicon dioxide, 51.4 kg of SiC is obtained. Determine the percent yield of silicon carbide.4. Imagine that you are given 0.2500 g of a sample of copper(II) sulfate pentahydrate (CuSO4 • 5 H2O). You very carefully heat the compound for an extended period of time to drive off water, after which you determine the mass of the remaining solid to be 0.1598 g. (i) Determine whether the data given confirm the formula of the hydrate. You must (ii) show any relevant calculations that support your answer.
- In the synthesis of aspirin we react salicylic acid with acetic anhydride. The balanced chemical equation is: 2HOOCC6H4OH + C4H6O3 → 2HOOCC6H4O2C2H3 + H2O salicylic acid aceticanhydride acetyl salicylic acid water If we mix together 27.9 grams of salicylic acid with 14.4 grams of acetic anhydride in this reaction, we obtain 30.7 grams of aspirin. What are the theoretical yields of our experiment? The theoretical yields = What are the percentage yields of our experiment?the percentage yields =In the synthesis of aspirin we react salicylic acid with acetic anhydride. The balanced chemical equation is: 2HOOCC6H4OH + C4H6O3 → 2HOOCC6H4O2C2H3 + H2O salicylic acid aceticanhydride acetyl salicylic acid water If we mix together 27.9 grams of salicylic acid with 14.4 grams of acetic anhydride in this reaction, we obtain 30.7 grams of aspirin. What are the theoretical yields of our experiment? The theoretical yields = What are the percentage yields of our experiment? the percentage yields =Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is the number of coordinated waters. Assuming that the product is anhydrous (y = 0), what is the theoretical yield of ammonium nickel sulfate from 1.500 g of Ni (s)?