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A quantity of 10.0 kg of NaCl is added to a manufacturing tank and water is added to the fill mark on the tank. After all the NaCl is dissolved a 20.0 mL sample of the NaCl solution is titrated with 0.1000 M AgNO3 and 43.5 mL is requiered to react completely with the NaCl. Calculate the molarity of the NaCl solution in the tank and the volume of the tank in liters. Reaction: NaCl(aq) + AgNO3(aq) -> AgCl(s) + NaNO3
Calculate the hypothetical retention times for caffine and aspartame if their retention factors were reduced by 28.0 %. Assume the mobile phase retention time (tm= 29.7 s) remains constant.
What is the molecular formula?
Suppose that a 4.0 L sample of gas at 1.0 atm is heated from 44°C to 53°C, during this process the volume doubles. What will the final pressure of the gas sample be
The compound known as butylated hydroxytoluene, abbreviated as BHT, contains carbon, hyrdrogen, and oxygen. A 2.626 g sample of BHT was combusted in an oxygen rich environment to produce 7.867g of
A volume of 18.0 L contains a mixture of 0.250 mols N2 , 0.250 mols O2 , and an unknown quantity of He. The temperature of the mixture is 0 degrees C , and the total pressure is 1.00 atm.
Calculate how much water must melt in order to reach exactly 0 degrees celsius at thermal equilibrium. b) Calculate the entropy changes for ice, liquid water and the total entropy change.
A sample of 54.7 g of HCl gas is dissolved to make 1L of solution. What is the molarity of the solution?
How does the system in equilibirium seem to respond to the changes applied to it with respect to the distribution of iodine?
It takes 54.0 J to raise the temperature of an 10.3g piece of unknown metal from 13.0C to 25.0 C. What is the specific heat for the metal?
What is the change in air temperature(, assuming the heat from the steam is all absorbed by air)
The neutrons interact with with 6Li to produce tritons (nuclei of 3H), which, in turn, interact with the oxygen to produce 18F. What are the two nuclear reactions?
How long does it take to deposit a coating of gold 1.00um thick on a disk-shaped medallion 4.00 cm in diameter and 2.00 mm thick at constant current of 89 A?
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