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When calculating the moles of neutralized buffer from a graph (to use in the equation for calculating buffer capacity), do you use the total volume of acid/base added or do you use the volume of acid/base that can be added without a significant pH change?
PbCl2 has a Ksp of (1.7 x 10^-5) while it dissolves it has an ionic strength that interferes with itself. Using activity, iterations along with approximations, compute the number of grams of PbCl2(s) that dissolves in 750 Ml of H20.
how many grams of h2o g are theoretically produced from 1026.9 g of sucrose c12h22o11 g and an excess amount of
A molecule has two amino/ammonium groups with pKas of 8.9 and 10.8, and a carboxyl group with a pKa of 4.1. A biochemist has 100 mL of a 0.1 M solution of this compound at a pH of 8.3. She adds 40 mL of 0.1 M HCl. What is the pH of the resulting s..
1. When H2 gas was released by the reaction of HCl with Zn, the volume of H2 collected was 66.0 mL at 26 °C and 750 mmHg. A. What is the volume of the H2 at 0 °C and 1.00 atm pressure (STP)? 2. Express the temperature numerically in degrees Celsius.
A solution is prepared by adding 0.1M acetic acid and 0.01 M ethylamine to water and adjusting the pH to 7.4. What is the ratio of acetate to acetic acid. WHat is the ratio of ethylamine to ethylammonium ion
Which would most likely increase the solubility of a solid in water ? stirring, increase the surface area of solid, increase pressure or increase temperature
The standard enthalpy of formation of the metallocene bis(benzene)chromium was measured in a calorimeter. It was found for the reaction Cr(C6H6)2(s) Cr(s) + 2 C6H6(g) that.
a mixture consists of 35 heg and 65 n2g by mass. if it exerts a total pressure of 2.15 atm what is the partial pressure
Compute the remaining concentrations of all four ions: Potassium, Lead (II), Chromate, and Nitrate D. Compute the mass of solid produced by mixing these chemicals
For the equilibrium H2(g)+ CO2 (g) H20 (g) + CO(g) Kc = 3.18 at 1106K. If each of the four species was initially present at a concentration of 3.000M, calculate the equilibrium concentration of the CO(g) at this temperature
please comment on the mineralogy chemistry and origin of alkaline igneous rocks with illustrated examples.unlimited
Which components of an acrylamide gel effects qualities of the final product, and which components affect the speed of polymerization?
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