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A NaOH solution weighs 150 g, the weight of water being 125 grams. Such a solution contains 25% mass/mass of NaOH. True or False
The temperature in the room was 25.0 ºC. James was asked to transfer 4.50 mL of a liquid (density = 0.895 g/mL at 25.0 ºC) using a buret. He added the liquid into a 50-mL beaker weighing 25.789 g. He weighed the beaker with the liquid and found th..
Draw the skeletal structure of meso-3,5-dibromo-3,5-dimethylheptane. (Show one wedge bond, one dashed bond, and two sticks attached to the chiral carbon.
A radioactive element has a half-life of 2.2 hours. How many hours will it take for the number of atoms present to decay to one-sixteenth of the initial value? Show your calculations
Problem- 325 mL of 0.05 M H2SO4 is titrated with 1.5 M NaOH solution. What is the minimum volume of NaOH necessary to neutralize the acid
In a certain experiment, 20.00 ml of 0.800M HCL were added to a O.1022 gram sample of MCO3. The excess HCL required 5.64 ml of 0.1000M NaOH for neutralization. Compute the molar mass of the carbonate and identify M.
the vapor pressure of benzene is 100.0mmhg at 26.1 degrees celsius. calculate the vapor pressure of a solution
A 75.0-mL volume of 0.200 M NH3 (Kb=1.8×10-5) is titrated with 0.500 M HNO3. Calculate the pH after the addition of 11.0 mL of HNO3. Express your answer numerically.
The resulting standard solution was used to titrate 25.0 mL of an unknown diprotic acid. If 18.50 mL of the standard NaOH solution was needed to reach the end point, What is the concentration of the unknown diprotic acid solution
calculate the change internal energy (E) for a system that is giving off 45.0kJ of heat and is performing 855J of work on the surroundings.
Calculate the temperature in (K) where the specific heat of carbon dioxide is 0.93 kJ/kg*K if the temperature dependence of the specific heat is given by
AgCI are insoluble in water. what can we conclude, if anything, regarding the energy required for separating and energy released for solvating the ions. Explain
how do you find the specific heat of platinum if 23.6 grams is heated from 10.0c to 20.0c using 30.68 J of heat.
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