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Consider the titration of a 25.0 -mL sample of 0.105 M HC2H3O2 with 0.125 M NaOH. Determine the pH at 6.00mL of added base, the pH at the equivalence point.
A buffer solution containing 0.25 M Acetic acid and 0.56 m Sodium acetate. After addition of 0.0060 mol HCL what is Ph of buffer.
Draw and construct the open-chain model of glucose, How many chiral carbons are in the open-chain version of glucose?
Determine the limiting reactant -reaction mixture initially contains no products
A solution is initially 0.050M in acetate, CH3COO- (Kb = 5.6 x 10^-10). 10.0mL of 0.10 M HCl is added. Write a chemical equation for the neutralization reaction that occurs.
A sample of nitrogen gas, N2 is collecyed in a 100 mL container at a pressure of 688 mm Hg and a temperature of 565 degress celsius. How many grams of nitrogen gas are present in this sample.
Aqueous hydrochloric acid reacts with zinc metal to yield hydrogen gas and aqueous zinc chloride. Write a net ionic equation for the process: 2 HCl(aq) + Zn(s) ? H2(g) + ZnCl2(aq)
If 0.0598 moles of potassium hydroxide are added to 250 ml of this buffer, what is the pH of the resulting solution? (Assume that the volume change does not change upon adding potassium hydroxide)
A solution is composed of ethanol and water. The solution density is 0.964g/mL. The partial molar volume of ethanol at this concentration is 52.0 mL/mol and water is 17.0 mL/mol. What is composition of liquid by mass
The second time, 1.3mL is added to reach the end point. How would I calculate the molarity of the hydroxide ion (OH-) for the two tests
Calculate the molarity and the molality of an NH3 solution made up of 37.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
Get a glass and fill it with cold tap water. Observe the water in the glass as it warms to room temp. What effect does temp have on the amount of gas that can remain dissolved in water? Can you use this information to explain boiling?
A proton in a linear accelerator has a de Broglie wavelength of 158 pm, What is the speed of the proton?
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