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In a mixture of helium and chlorine, occupying a volume of 15.9L at 822.6 mmHg and 53.2 C, it is found that the partial presure of helium is 424.8 mmHg. What is the total mass of the sample?
a solution is prepared by mixing 62.0 ml of 5.00 m hcl and 30.0 ml of 8.00 m hno3. water is then added until the final
a 5.00 gram sample of potassium chlorate/potassium chloride mixture was heated in a test tube. A total of 1.00 L of oxygen gas was collected over water at 25 degrees c and 741 torr. determine the percentage of potassium chlorate in the mixture.
How many g of NaCl are required to prepare 250.0 mL of a 0.3440 M solution of NaCl in water?
what color is the universal indicator when a double replacement reaction occurs with hcl and naoh. the hcl turns the
N-Phenylmaleimide, can act as a dienophile in the Diels-Alder reaction Draw the structure of the product that would be formed by the treatment of N-phenylmaleimide with
At 373 K, Keq = 2.39 for the following reaction: SO2Cl2(g) = SO2(g) + Cl2(g) In an equilibrium mixture of the three gases, the partial pressures of SO2Cl2 and SO2 are 3.31 atm and 1.59 atm, respectively.
Describe and explain the possible effect on your results if you mistakenly extracted the dicholoromethane solution with 5% HCL rather than 5% NaHCO3
If 2.00 mL of a 0.40 M NaOH solution is added to 65.0 mL of a buffer solution that contains 0.10 M HCN and 0.10 M NaCN, calculate the change in pH of the solution (i.e. pH[after] - pH[before] ). For HCN, Ka = 4.9 e-10.
What is the heat capacity of an empty glass mug weighing 300.0 g, and what quantity of heat is required to heat it from 25 oC to 75 oC?
A .750 L volume of gas at 308.0 torr and 51.00 degrees C is heated until the volume of the gas is 2.000L at a pressure of 718 torr. What is Tfinal of the gas?
The formation constant Kf for the complex ion Zn(OH)42- is 2.8 1015. What is the concentration of zinc ion, Zn2+, in a solution that is initially 0.50 M in Zn(OH)42-
If 2.55 g of NaOH were added to a 100.0 mL solution containing 0.10 M Ca(NO3)2, what concentration of Ca 2+ remains in solution?
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