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WHich of the following will act as a lewis acid? (please explain why as I need to understand the concept)
A) CH4
B) BF3
C) NH3
D) Cl-
A 22.0 mL sample of vinegar, which is an aqueous solution of acetic acid, HC2H3O2 , requires 24.5 mL of 0.450 M NaOH to reach the endpoint in a titration. What is the molarity of the acetic acid solution
What would be the value of the change in concentration of C10H12/change in time during the same period of time? Explain why a catalyst for a forward reaction must also be a catalyst for the reverse reaction. Include an energy level diagram
To obtain the same antifreeze protection requires 76 g of propylene glycol to replace each 62 g of ethylene glycol. Calculate the mass of propylene glycol required to replace
insulin is a protein that is used by the body to regulate both carbohydrate and fat metabolism. A bottle contains 475 of insulin at a concentration of 30.0 . What is the total mass of insulin in the bottle?
CCl4 lowered the freezing point of the solvent by 5.40 K . Calculate the molar mass of the compound.
The di basic compund B(pkb1=4.00),pkb2=8.00 was titrated with 1.00 M HCl. the intial solution of B was 0.100M and had a volume of 100.0mL. A) At what volumes are the two equivalence points?
Calculate the molar concentration of a solution prepared by dissolving 2.34 g of sodium sulfate (MW = 142) in enough waterto make 250 ml of solution.
which of the following solutes dissolved in 1000 g of h20 would provide a solution with the lowest freezing pts?
Derive the fractional compositions for monoprotic and diprotic systems showing the steps as clear as possible including a brief description of a fraction compostion plot.
Give a physical explanation of why the intrinsic viscosity and the specific viscosity divided by the concentration need
Xenon can be the central atom of a molecule by expanding beyond an octet of electrons. Draw Lewis structure for the following xenon compound.
Calculate equilibrium concentration of Ag+ in a solution that is initially 0.110M AgNO3 and .870M NH3 and in which the following reaction takes place
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