e human body can get energy by metabolizing proteins, carbohydrates or fatty acids, depending on the circumstances. Roughly speaking, the energy it gets mes mostly from allowing all the carbon atoms in the food molecules to become oxidized to carbon dioxide (CO₂) by reaction with oxygen from the nosphere. Hence the energy content of food is roughly proportional to the carbon content. ='s consider fructose (C6H₁206), one of the simplest carbohydrates, and valine (C,H₁,NO₂), one of the amino acids from which proteins are made. Using e idea above about energy content, calculate the ratio of the energy the body gets metabolizing each gram of fructose to the energy the body gets etabolizing each gram of valine. und your answer to 2 significant digits.

What can you reasonably predict to occur when elemental bromine is added to a solution containing the iodide ion? Write chemical equations as part of your explanation.

5.00 mL of stock solution is diluted to 25.00 mL, producing solution ALPHA. 10.00 mL of solution ALPHA is diluted to 25.00 mL, resulting in solution BETA. 10.00 mlL of solution BETA is then diluted to 25.00 mL, producing solution GAMMA.

Include answers to the following questions in your discussion. 1. (a). Gravimetric analysis is very useful for routine monitoring of ions present in relatively high concentrations. Why is gravimetric analysis not used for determining trace amounts of ions? (b). Discuss the sources of error in this experiment. From 0.323 g of an unknown chloride sample (M.Cly), it produces 0.523 g of AgCl(s) solid under gravimetric analysis. What is the percentage of Cl in the unknown sample? What is the theoretical molar weight of the metal in the chlorite salt sample M.Cly for the following given conditions? a. x= 1, y = 1; b. x = 1, y = 2; 2. c. x = 2, y = 4. 23

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4.4 Discuss the process of sampling and preparation of laboratory sample in quantitative analysis.

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The mass of K3PO4 needed to prepare 250.0mL of an aqueous solution in which PO4-3 concentration is 0.0550M.   The answer is ……………………… 6

please use the information in the photo attached to calculate the molarity of the students sodium hydroxide solution, round to 3 significant digits.

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