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What are the concentrations of each ion present in the solution formed by mixing together the two solutions described below:
56.5 mL of 0.247 M K3PO4 and 10.6 mL of 0.516 M K3PO4
what is the ph after 45.0ml of .1M HCl is added during the titration of 30.0ml of 0.1 Mweak base that has a (kb=5.2 *10^-4)
What is the enthalpy change corresponding to the melting of 2.5 moles of H2O? What is the system? What is the surrounding?
A 325 mL sample of gas is initially at a pressure of 721 torr and a temperature of 32°C. If this gas is compressed to a volume of 286 mL and the pressure increases to 901 torr, what will be the new temperature of the gas (reported to three signifi..
Calculate the mole fraction and partial pressure of each gas, and the total pressure in the tank. a) Boron trifluoride - mole ratio - partial pressure b) Sulfur hexafluoride -mole ratio -partial pressure
1.45 g sample of an iron ore is dissolved in acid and the iron obtained is fe2 aq. to titrate the solution 21.6 ml of
The elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O. Determine the empirical formula of malonic acid. Express your answer as a chemical formula.
What is the retention factor for the following TLC plate if the baseline is 1 cm, elution solvent traveled 5 cm from the bottom of the plate, and the spot of interest traveled 3.5cm
Given the pK for acetic acid is 4.76. Suppose that we dissolve a mole of this weak acid in 10L of water. Find the pH of the resulting solution.
Benzene (C6H6) is converted to cyclohexane (C6H12) by direct addition of hydrogen gas H2. The plant produces 100 Ib-moles/hr of cyclohexane. 90% of benzene fed to the process reacts to form cyclohexane.
The most probable mechanism of reactivity for the solvolysis of tertiary butyl chloride is a)Sn1 b)Sn2 c)E1 d)E2. I performed the experiment and benzyl chloride (primary) and teriaty butyl chloride (tertiary) ran the same amount of time. 2-chloro-..
a 0.050m solution of glycerine c3h83 and a 0.050m solution of lycine c5h11no2 are prepared. which solution contains the
For an isothermal expansion of 1.00 mole of ideal gas at 399K and initially at 16.00bar pressure, compare the total work done by the system if the expansion is carried out
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