Explain how the dichromate-chromate equilibrium shifts in response to an increase or decrease in H+ ions. Express this in words and as an equation.
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Explain how the dichromate-chromate equilibrium shifts in response to an increase or decrease in H+ ions. Express this in words and as an equation.
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- The molecular weight of sperm whale myoglobin is 17.8 kDa.17.8 kDa. The myoglobin content of sperm whale muscle is about 80 g · kg−1.80 g · kg−1. In contrast, the myoglobin content of some human muscles is about 8 g · kg−1.8 g · kg−1. Compare the amounts of O2O2 bound to myoglobin in human muscle and in sperm whale muscle. Assume that the myoglobin is saturated with O2,O2, and that the molecular weights of human and sperm whale myoglobin are the same. How much O2O2 is bound to myoglobin in human muscle? How much O2O2 is bound to myoglobin in whale muscle? The amount of oxygen dissolved in tissue water at 37°C37°C is about 3.5×10−5 M.3.5×10−5 M. What is the ratio of myoglobin‑bound oxygen to dissolved oxygen in the tissue water of sperm whale muscle?Explain how the dichromate-chromate equilibrium (eqn. 2) shifts in response to an increase or decrease in OH- ions. Express this in words and as an equation.Write the equilibrium expression (K) for the following reaction: N2O4(g) ↔ 2 NO2(g)
- Consider the series of reactions to synthesize the alum (KAl(SO4 )2 · xH2O(s)) from the introduction. (a) Assuming an excess of the other reagents, from one mole of aluminum Al (s), how many moles of alum will be produced? (b) Assuming an excess of the other reagents, from one mole of potassium hydroxide KOH, how many moles of alum will be produced? (c) Assuming an excess of the other reagents, from one mole of sulfuric acid H2SO4 , how many moles of alum will be produced? (d) If you start the synthesis with 1.00 g of Al, 40.0 mL of 1.50 M KOH, and 20.0 mL of 9.00 M H2SO4 , which of the three will be the limiting reagent? (e) Assuming that the product is anhydrous (that there are no waters of hydration), calculate the theoretical yield of alum, in grams, based on the amounts of reagents in part (d). 3. Consider the nickel salt: (NH4 )2Ni(SO4 )2 ·y H2O (Ammonium Nickel Sulfate Hydrate), where y is the number of coordinated waters. (a) Assuming that the product is anhydrous (y = 0),…1. Write the equilibrium constant for 3NO(g) ↔ N2O(g) + NO2(g)Predict the products and write the balanced chemical reaction for the Arrhenius acid-base reaction of nitrous acid and lithium hydroxide. Indicate phases. Note: Nitrous acid is different from nitric acid. Recall acids derived from polyatomic ions.
- Calcium carbonate is insoluble in water. Yet, it dissolves in an acidic solution. Calculate the standard enthalpy, entropy, and Gibbs free energy change for the reaction between solid calcium carbonate and hydrochloric acid. What drives the reaction, the enthalpy change, or the entropy change?Write the balanced chemical equation for the reaction of the equilibrium between nitrogen dioxide and dinitrogen tetroxide. Calculate the equilibrium concentration of: NO2 if initially the concentration of NO2 is 0.750 M and N2O4 is 0.00 M. The value of K at this temperature is 1.15.2 Consider the insoluble compound aluminum phosphate, AIPO4. The aluminum ion also forms a complex with hydroxide ions. Write a balanced net ionic equation to show why the solubility of AIPO4 (s) increases in the presence of hydroxide ions and calculate the equilibrium constant for this reaction. For Al(OH)4, K₁= 7.7x1033. Be sure to specify states such as (aq) or (s). K= Submit Answer 54 $ R % 5 Use the References to access important values if needed for this question. T ? Retry Entire Group 9 more group attempts remaining Cengage Learning | Cengage Technical Support A 6 MacBook Pro Y H & 1 U - A * 8 1 A ( 9 ) 0 0 P K L Previous Email Instructor { [ + 11 = Next Save and Ex }