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What is the mass of sodium chloride used to a 100 mL solution at a concentration of 1.5 M?
For each of the following mechanisms, draw a reaction diagram that is appropriate for the number of steps, the relative rate of each step as well as whether each step is endothermic or exothermic. Find out the rate law for each mechanism.
Use balanced equations to determine whether either Fe(OH)2 or CuS has a different solubility with a change in pH:CuS changes solubility with changing pH. Fe(OH)2 does not change solubility.
Compare the chemical structure of the nylon polymer that has been prepared to the polypeptide trimer of glycine, the simplest of the naturally occurring amino acids
Problem- A solution was prepared by adding 20.0g of urea to 125 g of water at 25 C, a temperature at which pure water has a vapor pressure of 23.76 Torr. The observed vapor pressure of the solution was found to be 22.67 torr. Calculate the formula..
The radius of a typical human eardrum is about 4.0 mm. Find the energy per second received by the eardrum when it listens to sound that is (a)
We will abbreviate malonic acid, CH2(CO2H) 2 as H2M. Find the pH and concentrations of H2M, HM-, and M2- for the following. (Ka values for malonic acid are Ka1 = 1.42 10-3 and Ka2 = 2.01 10-6.)
Question- What is the pH of the resulting solution if 40.0mL of 0.10M CH3CO2H is titrated with 10.0mL of 0.10M NAOH. Assume that the volumes of the solutions are additive. Ka = 1.8 x 10^-5 for CH3CO2H.
a gas was acquired by boiling liquid nitrogen that was stored in a 180.0 l tank. determine what volume of n2 is
What is the approximate ph measurement 0.010 M NaH3 and balanced equation showing acidity/basicity. NaH3 is mixed with an universal indicator
In a high-altitude city, the normal atmospheric pressure is 619.0 torr. Use the Clausius-Clapeyron equation to estimate the boiling point of water in this city. The heat of vaporization of water is 40.70 kJ/mol.
How would you prepare 500mL of a solution that has a new concentration of 4.5M if the stock solution is 11.6M
A mixture of 82.49 g of aluminum (MM = 26.98 g/mol) and 117.65 g of oxygen (MM = 32.00 g/mol) is allowed to react. Identify the limiting reactant and determine the mass of the excess reactant present in the vessel when the reaction is complete.
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