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A solution is made by dissolving 21.7 g of HCl in enough water to make 822 mL of solution. Calculate the pH of the solution at 25 degrees Celsius
What is the energy implied by the mass defect? If this energy is carried away in a single photon, what is its wavelength? To what part of the electromagnetic spectrum does this correspond
Using the balanced equation: 2NaCl(s)+ 1H2SO4(aq)= 2HCl(aq)+1Na2SO4(aq) a. If 20. G of NaCl are used, and only 5.6 g of HCl are isolated, what is the percent yield of HCl? b. If only 5.6 g of HCl are obtained, how many grams of Na2SO4 must also ha..
Consider the titration of 30.0 mL of 0.035 M NH3 with 0.030 M HCl. Calculate the pH after the following volumes of titrant have been added.
Showing only Valence electrons, write an equation for the reaction that occurs between sodium, Na
Explain the structure for 4-ethyl-2,3-dimethyl-2-heptene?
compressed gas cylinder contains 1.00 x 10^3 g of argon gas. The pressure inside the cylinder is 2050 psi at a temperature of 18 C.
How many grams of formic acid, HCOOH, must be added to 0.210 L of 0.160 M sodium formate, HCOONa, to yield a buffer solution with a pH of 4.10? Assume no volume change. Ka of HCOOH = 5.0 10-4.
The equilibrium constant for the dissociation of Br2 at 1600 K is K=0.255. Calculate the standard reaction Gibbs energy at this
Calculate the molar mass of a vapor that has a density of 6.735 g/L at 13°C and 825 torr.
What volumes of CO2 and NH3 at 201 atm and 450.°C are needed to produce 2.54 kg of urea, assuming the reaction goes to completion?
Calculate Kb for methylamine. Is methylamine strong base or weaker base than ammonia?
Persistent Organic Pollutanants- Bioaccumulation Measurements, Compare the worst case scenario, i.e. the strongest tendency to bioaccumulation for each toxin.
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