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The ion-product constant for water is 1.0x10^-14 at 25 degrees Celsius and 3.8x10^-14 at 40 degrees Celcius. Is the forward process endothermic or exothermic? H2O is equal to H+ + OH-
the molar mass of the compund is 92g/mol. what is the empirical formula and molecular formula of he compund?
Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq) is mixed with a solution containing 0.1 g of KI(aq)/100 mL
A flask of unknown volume was filled with air to a pressure of 3.23 atm. This flask was then attached to an evacuated flask with a known volume of 8.00 L, and the air was allowed to expand into the flask.
Calculate the pH of a solution made by adding 40. g of sodium acetate, NaCH3COO, to 21 g of acetic acid, CH3COOH, and dissolving in water to make 700. mL of solution
What product results from the reaction of hexyl bromide and sodium ethoxide?
Predict the direction of the reaction when chlorine gas is added to an equilibrium mixture of COCL2, CO, and CL2. The reaction is COCL2(g) CO(g) + Cl2 (g)
balance the following reaction. which compound is the oxidizing agent in the reaction below? which is reducing agent?
A sample of neon gas at 1.20 atm compresses from 250 mL to 125 mL. If the temperature remains constant, what is the final pressure
A flask containing 450 mL of 0.47 M H2SO4 was accidentally knocked to the floor. How many grams of NaHCO3 do you need to put on the spill to neutralize the acid according to the following equation?
A 100 liter air tank housed in a gas station ruptured suddenly and air originally at 5atm escaped to the surroundings at 1atm and 25°C. Find ?S of air, had it been let out slowly in a reversible manner
One student measure the pH of the following three solution (weak base, conjugate acid and buffer). Using this data, please calculate the pKa and pKb (show calculation).
Using kinetic molecular theiry of gases to explain each of the following: a) A container of nonstick cooking spray explodes when thrown into a fire; b) The air in a hot air balloon rise. c) You can smell the odor of cooking onions from far away.
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