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What is a thiol (what functional group determines a thiol) and what is its distinctive characteristic?
Tris base (pka =8.1 ; ka = 8.32 e-9) was dissolved in 0.5l of water to give the final concentration of 1 M. a.) find pH of the obtained solution. b.) how much does the pH change after addition of 1 ml of 10N HCl?
Calculate the pH of a solution made by adding 16.0 g of sodium formate
Draw the structure(s) of the trans-cycloalkanes with the chemical formula C7H14 that contain a 5-membered ring.
Determine the magnesium content (in ppm) of a 100.00 mL sample of drinking water if the following data were obtained. Titrant is 0.0297 M EDTA, 13.71 mL
The solubility of strontium fluoride (SrF2) in water is 111.5 mg/L. What is Ksp for strontium fluoride (molar mass = 125.62 g)?
Assuming that the formal charge on the central atom can't be larger than +/- 1, what is the number of important resonance forms for this ion
Liquid nitrogen has a density of 0.808 g/mL at -196 C. If 370.0mL of LN2 is injected into a weather balloon to inflate it, explain what is the final volume of the balloon at 0.82 bar and 30 C
Suppose you take a 25.00 mL sample of this hydrochloric acid solution. You then titrate it with a 0.1477 M sodium hydroxide solution.
A sample of CO2 gas which weighs 1.62 grams has a volume of 1.02 liters when collected at 20°C. What would be the pressure of the gas sample
A 25-g sample of an alloy at 98 C is placed in 50. g water at 17 C: If the final temperature reached by the alloy sample and water is 27 C, what is the specific heat (cal/gC) of the alloy?
535 g piece of copper tubing is heated to 91.5degc and placed in an insulated vessel containing 58.5 g of water at
If 2.50 g CuSO4 are dissolved in 8.0 x 102 mL of 0.25 M NH3, what are the concentrations of Cu2+, Cu(NH3)42+, and NH3 at equilibrium
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