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A 30.00-mL solution of HBr was treated with 5 mL of freshly boiled and cooled 8 M HNO3, and then with 50.00 mL of 0.365 0 M AgNO3 with vigorous stirring. Then 1 mL of saturated ferric alum was added and the solution was titrated with 0.287 0 M KSCN. When 3.60 mL had been added, the solution turned red. What was the concentration of HBr in the original solution? How many milligrams of Br2 were in the original solution?
A 14.0g sample of an unknown gas occupies 10.8L at a temperature of 30 degrees celsius and a pressure of 750mmHg. What is the molar mass of the gas
A solution is made by combining 15.0 mL of 18.0 M acetic acid with 5.50 g of sodium acetate and diluting to a total volume of 1.50 L. Calculate the pH of the solution.
The sulfide forms in preference to Ag2O, even though the atmosphere is 20% O2 with just a trace of H2S. Explain this by selecting all that apply.
Calculate the pH in a 0.048M solution of formaticacid (HCOOH)
The oxygen conversion is 82.0%, and the concentration of the ethanol in the product stream is three times that of the aldehyde and four times that of the acetic acid. (a) What is the fractional conversion of ethane. (b) What is the production rate..
Consider what happens when liquid Br 2 dissolves in H 2 O. (a) What type of attract ive forces must be overcome in the liquid H 2 O?
the frequency factor a is 8.7x 10 12 s- and the activation energy is 63 kj/mol, What is the rate constant for the reaction at 75C
Draw the structure of a DNA nucleotide represented by the abbreviation "C." Do not include formal charges on the phosphate group.
a volume of 100 litres of is at room temperature that was twenty two degree celsius initially. a cooled steel rod at
A hypothetical weak acid, HA, ws combined wih NaOH in he following proporions: .2 mol of HA, .08 ml of NaOH. The mixture was diluted o a total volume of 1.0 L and the pH measured. a) if pH= 4.80, what is the pKa of the acid
Determine the pH of a solution when 26.8 mL of 0.15 M HNO3 is mixed with 20.1 mL of distilled water
Determine the empirical formula of a compound that is 52% carbon, 13 % hydrogen, and 35 % oxygen. What is the moleuclar formula is the molecular weight of the compound is 46.06 g/mol?
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