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For the titration of 40.0 mL of 0.250 M acetic acid with 0.200 M sodium hydroxide, determine the pH when:(a) 40.0 mL of base has been added(b) 50.0 mL of base has been added(c) 60.0 mL of base has been added
Calculate the molarity of the hydroxide ions in a solution that has been prepared by dissolving 88.7 g of barium hydroxide
Determine the rate constant for each of the following first-order reactions. In each case, write the rate law for the rate of loss of A. a) 2 A B + C
In the following reaction, how many moles of the non-limiting reactant are in excess if 4.4 mol Al are combined with 2.7 mol HCl
Calculate the energy in joules and calories required to heat 24.0g water from 20.0C to 27.7C
An environmental engineer analyzes a sample of air contaminated with sulfur dioxide. To a 500. mL sample of air at 700. torr and 38°C, she adds 20.00 mL of 0.01017 M aqueous iodine, which reacts as follows:
when methane CH4 reacts with oxygen gas O2, water and carbon dioxide are formed. if 25.0 liters of oxygen reacts at 125.0C and 2.00 atm with 22.00L of methane initially
This equation means that no matter how much carbon monoxide and oxygen gas is added to the flask, only 2 moles of CO and 1 mole of O2 will react to make two moles of Co2.
The rate of disappearance of HBr in the gas phase reaction 2HBr (g) → H2 (g) + Br2 (g)
What is the pressure in a gas container that is connected to an open end u tube manometer if the pressure of the atmosphere is 742 torr and the level of mercury in the arm
The volume of a certain bacterial cell is 1.60 µm3. What is the volume of 105 cells in liters (L)?
It takes 46.0 to raise the temperature of an 11.2 piece of unknown metal from 13.0 to 25.0. What is the specific heat for the metal?
A peanut is burned in a calorimeter made from an aluminum can. The peanut weighed 0.780 g before combustin and .054 g after combustion. The temperature change of aluminum can filled with 200 ml of water was 15.3. (Density of water = 1.00g/C)
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