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Consider the titration of 100.0 mL of 0.110 M NaOH with 1.00 M HBr. Find the pH at the following volumes of acid added and make a graph of pH versus Va: Va= 0,2,5,8,10,10.1,11,11.1, and 12 mL Compute Ve, first.
A 25.0g sample of nitrogen (N2) has a volume of 50.0L and a pressure of 630.0 mmHg. What is the temperature of the gas.
The titration of 0.50 M NH3 with 0.50 M HCL results in a final endpoint and a concentration of 0.25 M NH4 Cl with essentially all the NH3 complete conversion to NH4^
P4(s) + 6F2(g) --> 4PF3(g) How many grams of fluorine are needed to react with 6.20g of phosphorus?
The final temperature of the mixture is 27.0 degrees celsius. What is the heat capacity of the unknown substance?
Solutions of AgNO3 and KCl are combined and 0.683 g of a precipitate are formed. What is the precipitate and how many moles were formed.
When scuba diving, it is important to come back to the surface of the water from deep dives slowly. If this does not happen, then the diver can get the ?bends?.
Hydrochloric acid HCL, completely ionizes when dissolved in water. Calculate the PH of a solution containing
To ensure the impurity does not exceed this amount, how much water must be added to the solution before the temperature is dropped if the initial solution weighed 500 kg? How much Na2S2O2 will be generated in this process?
What are the steps to recrystallize an impure solid? Answer 1. Heating the water. 2. Dissolving the solute.3. Letting the solute cool.4. Collecting and washing the crystals.
What is the mole fraction of methane in the mixture? (Assume that the water produced by the combustion is in the gaseous state.)
One mole of water vapor is expanded reversibly from 5L to 15L at a temperature of 800K. Calculate q, w, deltaE for this process assuming that water behaves as a van der Waals gas,
What is the solubility of nitrogen in the divers blood at the bottom of the dive? b: If you assume the mass of the divers blood is 5.0 kg, how many moles of nitrogen comes out of the divers blood when he comes to the surface?
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