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Calculate the pH of the solution resulting from the addition of 10.0 mL of 0.10 M NaOH to 50.0 mL of 0.10 M HCN (Ka = 4.9 10-10) solution.
How much heat (in kJ}) is evolved in converting 1.00 {mol} of steam at 160.0C to ice at -55.0C? The heat capacity of steam is 2.01 {J}}/{{g.C}} and of ice is 2.09 {J}}/{{g.C}}.
The molecular mass of an unknown compound was determined by measuring the freezing point depression of an aqueous solution of the compound
if a plant produces 5.06 mol of C6H12O6, how many moles of CO2 are needed?
A 37.4-L volume of methane gas is heated from 22 degrees C to 78 degrees C at constant pressure. What is the final volume of the gas?
Write a balanced equation for the reaction that occurs in each of the following cases: (a) Cesium is added to water. (b) Strontium is added to water.
Find out the amount of energy released by this process of fission of a single U 235 atom and expree your answer in joules?
Calculate the equivalent number of moles of potassium permanganate? 3) calculate the clarity of the potassium permanganate solution?
What can you say about the realtive magnitudes of the latice energy of lithium iodide and its heat of hydration?
Which one of the following is a buffer solution?
calculate the density of the pheromone in grams per liter in a cylindrical air space with a radius of 0.50 mi and a height of 40ft.
usually some inception time is involved during the preparation of the Grignard. Explain the reason behind
An aerosol spray can with a volume of 456 mL contains 3.09 g of propane gas (C3H8) as a propellant. If the can is at 23°C, what is the pressure in the can? What volume would the propane occupy at STP?
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