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What will be the osmotic pressure of a solution when 4.5 x 10-5 mol of a solute is dissolved in 152.0 mL of solution at 300.0 K? R = 0.08206 Latm/molK
Calculate the pH of a buffer solution made by mixing 49 ml of a 0.07 M ammonia solution with 52 ml of a 0.10 M ammonium nitrate solution. Give the pH to two decimal places.
If an aqueous solution of Co(NO3)2 has a molar absorptivity of 5.10 L/mol.cm at 505 nm. What will be the absorbance of a 0.075 M solution
the rate of a first order reaction is 4.6 x 10 to the -4 power at 638k. if the activation energy is 104 kjmol calculate
Write and balance the equation and calculate the coefficient for the potassium sulfate in the balanced equation. How many grams of potassium dichromate are required for the reaction to be complete
Nuclides below the valley of stability can become more stable through which of the following processes
the vapor pressure of chlorine dioxide clo2 is 155 torr at -22.75 ?c and 485 torr at 0 ? c. what is the normal boiling
What is the pH of a solution made by mixing 25.00mL of 0.200M CH3COOH with 10.00mL of 0.200M NaOH? Ka of acetic acid is 1.8 x 10^-5.
How many grams of barium hydroxide must be added to 2.37-L of distilled water to make a saturated solution
How to carry out a calorimetry experiment to determine the delta H for the exothermic reaction of Ca(OH)2 (s) and HCl (aq). Predict how each of the following will affect the calculated value of Delta H.
From the understanding of colligative properties, how would I design an experiment to measure the freezing point of a material which freezed at -2'c using the same apparatus used in the laboratory and any chemical reagents commonly found in a chemi..
Find the lowest temperature of vaporization and the highest temperature when there is liquid left over and Determine the range of temperatures which could be used for this process.
Calculate the pH of a solution made by adding 44 g of sodium acetate, NaCH3COO, to 23 g of acetic acid, CH3COOH, and dissolving in water to make 200. mL of solution
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