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A student rinsed a burette with deionized water but not with Na2S2O3 before filling the burette with Na2S2O3 to perform the titration of thiosulfate with potassium periodate. Explain how the calculated concentration of Na2S2O3 would be affected.
a tank with a volume of 1.00m3 is filled with air at 0 degrees to 20 times its atmospheric pressure. how much volume
Explain the Coordination Chemistry and Chemical Speciation Utilized in the Analysis of Fluoride in Water Samples by Fluoride Ion-Selective Electrode.
A 33.5 mL sample of a KOH solution of unknown concentration requires 22.1 mL of 0.200 M solution to reach the end point in a titration. What is the molarity of the KOH solution?
Given the equilibrium constants below: (1/2) N2(g) + (1/2) O2(g) NO(g) Kc= 4.8*10^(-10) 2 NO2(g) 2 NO(g) + O2(g) Kc= 1.1*10^(-5) What is the equilibrium constant for: 2 NO2(g) N2(g) + 2 O2(g) Kc=?
What is the pressure of the gas in this mercury manometer if h = 73 mm and atmospheric pressure
Calculate the concentration of Cu2+ in a solution prepared by adding 4.9×10^?3mol of CuSO4 to 0.480L of 0.35M NH3.
how much energy heat is released when 0.9 moles of h2 reacts with 0.5 moles of cl2 to create hclg if the deltahrxn
For some iron-carbon alloy, the mass fractions of total ferrite and total cementite are 0.55 and 0.46 respectively. (a) On the base of carbon content would this alloy be classified as a steel or a cast iron? Why? (b) If the alloy is a steel, is it..
question assume that the heat lost by the surface is gained by ethyl chloride. what enthalpies must you consider if you
How do you calculate the rate of change of absorbance per minute over the first 3 minutes to get units, U/ml, total units and percent recovery?
Dry the hydrate as instructed in the lab procedure, noting down it's mass until it appears to no longer decrease (no more water bound in the sample).
an electrochemical cell is created using gold and magnesium half-cells.a. determine which half-cell will undergo
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