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Calculate the amount of heat transferred when 2.7 g of {rm Mg}({rm s}) reacts at constant pressure.
To determine the concentration of a sodium thiosulfate solution as in this experiment, a student pipetted 25.0mL of 0.100M potassium iodate (KIO3) solution into a 125mL Erlenmeyer flask. Potassium iodide and sulfuric acid were added as in this exp..
the molar mass is not identical, the molar mass of Br2 is only 159.80 g/mol compared to 162.35 g/mol for ICl F: ICl is polar while Br2 is nonpolar
What is the pH of the solution after 50.0 mL of base has been added? What is the pH of the solution at the equivalence point
how many miligrams of concentrated sulfuric acid (H2SO4) [having the strength is 18 M], are required to prepare 750 ml of 3.0 M
The heat of solution of ammonium chloride is 15.2 kJ/mol. If a 6.253 g sample of NH4Cl is added to 65.0 mL of water in a calorimeter at 26.9°C.
The specific heat of the reaction mixture was 4.104 Jg-1 K-1 and its density was 1.03 g mL-1. The calorimeter constant was 3.36 J K-1. Calculate delta H neutzn for reaction of NH3 and acetic acid.
Determine the intermolecular distances for the two molecules and account for their similarity or difference.
An aerosol spray can of deodorant with a volume of 210mL contains 3.4g of propane gas as propellant. Part A What is the pressure in the can at 20 celsius
Calculate the amount of heat transferred when 46.0 g of CH3OH is decomposed by this reaction at constant pressure.
A 0.264-gram sample of an amino acid was dissolved in 95.0mL of water and titrated with 0.105M NaOH. The first equivalence point was found at V(OH)=16.3mL.
Calculate the molar mass of X. 2.Identify the element symbol for X F2+2XBr -----> Br2+2XF
Why is it an important concept that atoms generally appear in whole number molar ratios to each other in chemical compounds?
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