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A 7.45 g sample of solid LiOH is completely dissolved in 120.00 g of water at 23.25°C contained in a calorimeter with a heat capacity of 11.7 J/°C. The specific heat capacity of the solution produced was 4.20 J/g•°C, and final temperature reached was 34.91°C. How much heat was produced by the dissolution?
A titration experiment is set up to use .235M bleach (NaOCl) to analyze CrO2^-. If 50mL of the CrO2^-(aq) solution required 28.62mL of bleach to react to completion, what would you calculate as the molarity of the CrO2- solution
You have a sugar solution( solution A) with concentration x. You pour 1/4 of this solution into a beaker, and add an equivalent volume of water (solution B)
An unit cell of CsCl was given. Chlorides are at the corners of a primitive cube with a cesium in the middle. Using the Cs atom as the origin calculate the first three terms of the Madelung constant for a CsCl crystal.
calculate the molar concentration of OH- ions in an 0.85M solution of hypobromite ion, BrO- (Kb = 4.0x10^-6). what is the pH of this solution?
The solubility of oxygen gas at 50*C is 27.8 mg/L at an oxygen pressure of 1.00 atm. The solubility of nitrogen gas at 50*C is 14.6 mg/L at a nitrogen pressure of 1.00 atm. Assume that the air above the water contains an oxygen partial pressure of..
What is the enthalpy of combustion of this fuel in kJ/mol? The specific heat capacity of water is 4.184 J/g-°C.
Identify the substance produced in the liver that helps catalyze this reaction.
How do you derive the Schrodinger equation for a right angle isosceles triangle?
EXPLAIN why at low temperatures, e.g. -80 °C, when HCl is added to 1,3-butadiene the major product is 3-chloro-1-butene. c) EXPLAIN why at +80 °C when HCl is added to 1,3-butediene the major product is 1-chloro-2-butene.
Calculate the molarity and the molality of an NH3 solution made up of 36.5 g of NH3 in 70.0 g of water. The density of the solution is 0.982 g/mL.
A line in the emission spectrum of an atom occurs at a wavelength of 560 nm. What is the energy difference between the two energy levels involved in this emission.
You will need two series of standard solutions to calibrate your ion-selective electrodes - one series for sodium and one for calcium.
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