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Suppose 0.916 g of potassium bromide is dissolved in 100.mL of a 49.0mM aqueous solution of silver nitrate. Calculate the final molarity of bromide anion in the solution. You can assume the volume of the solution doesn't change when the potassium bromide is dissolved in it.Round your answer to 3 significant digits.
when liquid water is introduced into an evacuated vessel at 25c some of the water vaporizes. preshydict how the
a student wants to make a ph 4.0 buffer solution. she decides to use a buffer made from formic acid and sodium formate
Consider the dissolving of lead iodide: PbI2 (s) ?? Pb2+ (aq) + 2 I- (aq) The solubility of lead iodide (like many salts) increases at higher temperatures: At 20°C, the molar solubility is 1.45 × 10-3M
Write a balancing equation for the reaction of potassium crbonate plus lead(11) nitrate where the products are lead (11) carbonate and patassium nitrate
What is the de Broglie wavelength in cm, of a 12.9 g hummingbird flying at 1.14 102 mph? (1 mile = 1.61 km.)
Depict and name all of the structural isomers of a ketone with five carbon atoms in its longest chain and the molecular formula C5H10O
a certain substance intially present at 0.500 m decomposes by second-order kinetics with a rate constant of 4.00 x 10-1
Problem- Every alpha amino acid has at least two possible sites for acid/base reactivity: the carboxylic acid site (pKa approx 2) and the amino site (pKa 9-10). Which amino acids have a third group that can undergo acid/base chemistry
Problem- Calculate the pH for the titration of 35.0 mL of 0.100 M KOH with 0.100 M HBr after adding each of the following amounts of HBr: 0, 5.0, 30.0, 35.0, 40.0 mL.
How many kilowatt-hours of energy are necessary to heat the air in the house from 5degree C to 25degree C
The most common source of copper (rm Cu) is the mineral chalcopyrite (rm CuFeS_2). How many kilograms of chalcopyrite must be mined to obtain 230. g of pure rm Cu?
One weighs 32.78 grams of NaOH and dissolves it in water (with stirring) to the mark in a 1500 mL volumetric flask. What is the molarity of this solution
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