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Shells of mussels (clams) are mainly of calcium carbonate. Usually the shell is stable and its content is in equilibrium with the surrounding. Mussels need to built up or reduce their shell, however, for additional surrounding.
Assume that the concentration of CA2+ ions in seawater and in the vicinity of a mussel bank is
(1.0 X 10^-2) M. Also, assume that the total concentration of "inorganic carbon" in seawater (this is carbon in chemical species with carbonate entities is (2.3 X 10^-3) M
Calculate the pH (correct to two decimals) of the water in the vicinity of mussels so that their shell remains stable.
discuss the implication of an increasing amount of CO2 in the atmosphere on the PH of seawater and , ultimately, on the existence of calcifying organisms such as corals, marine plankton and shell fish.
To determine its identity, 0.150g of the unknown was dissolved using 10.00ml, 0.531 M HCl. Three drops of methyl orange was added to the solution and then titrated with 0.2440 M NaOH.
Choose all of the processes from below which describe changes which are independent of the path by which the change occurs. the elevation increase experienced by a traveller travelling from Grand Isle, LA to Denver, Colorado
The Ksp of CaSO4 is 4.93× 10-5. Calculate the solubility (in g/L) of CaSO4(s) in 0.300 M Na2SO4(aq) at 25 °C.
What metal ions are involved in electron transport, and what is special about them that enable electrons to be shuttled among the various proteins
what volume of 3M H2SO4 is needed to neutralize all of the disodium salicylate and the excess NaOH present after the initial reaction? how much sulfuric acid was in excess
A 82.2 g sample of dinitrogen monoxide is confined in a 3.2 L vessel. What is the pressure (in atm) at 115°C?
A flask of nitrogen is collected over water at a total pressure 765.0 mmHg. If the partial pressure of the water vapor is 25.0 mmHg, what is the pressure exerted by the nitrogen?
chemical potential energy from rotating turbines into thermal energy. B) electrostatic energy from rotating turbines into chemical energy
Calculate the number of moles of carbon dioxide in the final equilibrium system obtained by initially adding 1.00 mol of H2, 2.00 moles of CO2, 0.750 mol of H20, and 1.00 mol of CO to a 5.00 L reactor at 990 C.
in an experiment similar to the empirical formula experiment in the lab book a student reacted beryllium and oxygen
If 67.0 mL of 0.119 mol/L NaOH(aq) and 35.0 mL of 0.193 mol/L HA(aq) are mixed, then what is [HA] at equilibrium? Assume that HA is a weak monoprotic acid with pKa=6.23 at 25oC
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.110 M HClO(aq) with 0.110 M KOH(aq). The ionization constant for HClO is 4.0*10-8.
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