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A sample conaining both HCl and HNO3 had a density of 1.083g/ml. A 30.00 ml amount of this sample required 25.78 ml of 0.3248 M NaOH for titration. Another 30.00 ml amount of this sample required 24.47 ml of 0.1327 M AgNO3 for titration. Calculate the mass percent of HNO3 (molar mass = 63.018 g/mol) in the sample.
a stock solution is prepared by adding 21 ml of 1 m alcl3 to enough water to make 76 ml. what is the cl- concentration
Gaseous C2H4 reacts with O2 according to the following equation: C2H4(g) +3O2(g) --> 2CO2(g) + 2H2O(g). What volume of oxygen at STP is needed to react with 1.50 mol of C2H4
Draw the Fisher projection formulas for the following and then convert them to three dimensional a. L-threose b. L-erythrose
The radioisotope argon-41 is used to measure the rate of the flow of gases from smokestacks. It is a γ emitter with a half-life of 109.2 minutes. Calculate the fraction of an argon-41 sample that remains after one day.
How do standard additions and calibration curves differ in quntification? What are the advantages and disadvantages of each?
A 9.41g sample of HgCl2 is dissolved in 32.75g ethanol (C2H6O). The boiling point is elevated to 80.58 C. Is mercury (II) chloride an electrolyte in ethanol
1. in the experiment measured the voltage of a wet cell. what is the difference between the voltage produced by a cell
What does ozone do that oxygen (or any other molecule) do? How? Ozone is created in what is believed to be a two-step process. It is destroyed naturally in one of two pathways. What are those reactions? On Your Own: What is the role of UV in the d..
a gas cylinder containing 6.38 mol of neon has a pressure of 491 mm hg at 295 k. if 3.22 mol of helium is added to this
Determine What would be the total volume in the graduated cylinder if density of Ag= 10.5 g/mL.?
How many grams of sodium lactate must be added to a 1.00 L solution of 0.400 M lactic acid to make a buffer with a pH of 3.70
In naming disubstituted benzenes, "1,2" substitution is also known as: A. meta substitution. B. para substitution. C. ortho substitution. D. isomer substitution. E. none of the above
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