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Calculate the pH at the equivalence point in titrating 0.100 M solutions of each of the following with 0.061 M NaOH.
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
35.5 grams of an unknown substance is heated to 103.0 degrees celsius and then placed into a calorimeter containing
The radioactive decay of radon follows first-order kinetics and has a half-life of 3.823 days. How many grams of radon will remain after 12.00 days if the sample initially had a mass of 455 g?
Solid NaI is slowly added to a solution that is 0.0091 M Cu+ and 0.0077 M Ag+. Calculate the concentration of Ag+ when CuI
If the volume is increased to 71.2 L at constant temperature, how many collisions will occur per square inch of this larger container
Consider the reaction when aqueous solutions of barium acetate and chromium(III) iodide are combined. The net ionic equation for this reaction is
compounds like ccl2f2 are known as chlorofluorocarbons or cfcs. these compounds were once widely used as refrigerants
Why is the water bath used to heat the reaction? 4)What is the mechanism of the reaction of phenylmagnesium bromide and CO2? Include the workup steps. 5) In this experiment, it is important to use freshly obtained dry ice. Why?
a 0.1276 g sample of an unknown monoprotic acid was dissolved in 25.0 ml of water and titrated with 0.0633 m naoh
You are checking the accuracy of a volumetric flask marked 10.00 mL. You measure the volume of water contained in the flask by measuring the mass of the empty flask
Phosphorus trichloride gas and chlorine gas react to form phosphorus pentachloride gas. A gas vessel is charged with a mixture of PCl3(g) and Cl2(g)
A medical patient has the ball section of his femur replaced with a titanium implant. Assuming the implant is a perfect sphere with a radius of 1.5 inches
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