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Problem- What are the concentrations of acetic acid (pKa = 4.76) and acetate in a buffer solution of 0.10 M at pH 4.5? Enter your answer to two significant figures. (For example, 0.0090 and 0.0097 each have two significant figures, whereas 0.009 has only one significant figure.)
Please assists me to understand How to do fix this?
An airplane is pressurized to 650 {rm mm,Hg}, which is the atmospheric pressure at a ski resort at 1.30×104 {rm ft} altitude. If the partial pressure of oxygen drops below 100 {rm mm,Hg}, passengers become drowsy.
Elevation Pressure 0 ft 760 mmHg 1000ft 740.2 mmHg 2000ft 720.4 mmHg What is the boiling point of water at an elevation of 6.00×10^3 ft
how to do the Empirical Formula is confusing. The substance is Magneiusm Oxide with .16G. The mass of Magneisum is .12G
Problem- I want to make cis-2-pentene given propyne and other reagents as needed. I need to use retrosynthesis to get from my starting material (propyne) to my target material (cis-2-pentene).
Do not include units in your response. Open the hint panel for an identical flow chart you can view while filling in the responses below. 1 If the plant wishes to produce 450.0 g/min of brown sugar today, what is the feed rate, m1. What is the flow ..
If 29.1 mL of 0.4 M NaOH is used to reach the endpoint when titrating 20.1 mL of acetic acid, what is the concentration of the acetic acid in moles/L
although we usually think of substances as burning only in oxygengas the process of rapid oxidation to produce a flame
The normal boiling point of water is 100 C as well as its molar enthalpy of vaporization is 40.67 kJ/mol. Explain what is the change in entropy in the system in J/k when 39.3 grams of steam at 1 atm condense to a liquid at the normal boiling point
How much slower will a reaction with 2 O3 + 10 NO be than a reaction with 6 O3 and 6 NO
Imagine that a chemist has cyclohexanone, triphenylphosphine, butyllithium, and 1-bromopropane. Draw the chemical structure of the alkene that you could make using these reagents in a synthesis that involves the Wittig reaction.
what is the wavelength of the photons emitted by hydrogen atoms when they undergo n=3 to n=2 transitions. Calculate in nanometers. In which region of the electromagnetic spectrum does this radiation occur? A) visible B) Ultraviolet C) Microwaves D..
Explain why do you get 2 peaks instead of 3 for the 3-bromopentane nmr spectra after a sn2 reaction of 2-pentanol with HBr and H2SO4
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