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Calculate the expected vapor pressure at 25 OC for a solution containing 158.0 g of nonelectrolyte sucrose (MW = 342.3 g/mol) in 643.5 mL of water. At 25 OC, water has a density of 0.9971 g/mL and its vapor pressure is 23.76 torr.
What gas escaped during the sodium bicarbonate washing. Write balanced equations for two reactions that took place during this operation.
the molecular weight of citric acid is 0.030m. how many grams of citric acid molecular weight 192 are present in a
A tightly sealed 5.0 L flask contains argon at 69.0 deg. C and 781 mm Hg. The flask is heated until the pressure is doubled. What it the temperature of the gas.
Calculate the Total Cell Number, You are given a 500ml culture of Euglena from which a 1 ml sample is taken and put in 49 ml of water. Absorbance was measured on this sample but the reading was off the scale
Determine the precipitate that forms if silver nitrate aqueous solutions and KCl react to produce products in a double-replacement reaction.
Write the step-wise acid-base reaction of the amino acid proline starting from its fully deprotonated form. Write the correct equilibrium constant expression for each reaction and indicate its numerical value
A piston has an external pressure of 5.00 atm. How much work has been done if the cylinder goes from a volume of 0.130 liters to 0.540 liters.
what are the industrial uses of iodine
When optically active propylene oxide is used, the 1,2-diol obtained from the acid hydrolysis has a optical rotation opposite from the Alkaline hydrolysis. Write the mechanism of each hydrolysis that is likely to explain these facts.
Calculate Kc for the reaction 2CCl4(g) + O2(g) [3] 1.75 moles of H2O2 were placed in a 2.50 L reaction chamber at 307C. After equilibrium was reached, 1.20.
0.25 mol of formic acid (HCO2H) is dissolved in enough water to make one liter of solution. The pH of that solution is 2.19. The Ka of formic acid is
Describe 3 types of marine life and how they are affected by the increase of acidity in the oceans.
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