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A. Give the formula of the conjugate base of the following Bronsted-Lowry acids. Explain your reasoning.
a. CH3NH2
b. HPO42-
c. HS-
B. Consider the substances GeH4, and SnH4• Which of the two is the stronger acid? Explain your reasoning.
What is the specific heat capacity (in SI unit) of the following.
Balancing equation to calculate correct number of moles If CaC2 + 2 H2O --> C2H2 + Ca(OH)2 then, there are 65 grams of calcium carbide
What is the partial pressure of He in a container that is at a total pressure of 2.33 atm and contains
5.0ml of 12 M NH3 is added to 500ml of 0.050 M AgNO3. What concentration of silver ion will exist after equilibrium is established. {Kf for Ag(NH3)2 is 1.5 x 10^7
Light with a frequency of 7.11 x 10 -14 Hz lies in the violet region of the visible spectrum. What is the wavelength of this frequency of light? Answer in units of nm.
What characteristic absorption bands would you expect to find the infared spectrum of caffeine
Construct a neat and compact table, including title and footnotes if required, to summarise the following information taken from rough notes
Suppose that the atomic mass unit (amu) had been defined as one-sixth of the average mass of an atom of sodium instead of one-twelfth of the mass of an atom of carbon-12. What would the average atomic mass of magnesium be on this new scale
in one city a balloon with a volume of 6.0 l is filled with air at 101 kpa pressure. the balloon in then taken to a
How many milliliters of 1.50 M H2SO4 are needed to neutralize 50.0 g of NaOH?
An enzyme-catalyzed reaction was carried out in a 0.2M "Tris" buffer, pH 7.8. As a result of the reaction, 0.03 mole/liter of H+ was produced. (pKa of Tris =8.1). What was the ratio of Tris+
What is the reason for using a phase transfer catalyst? a)It is used to transfer the catalyst to the active site of the reaction b)It serves as a proton transfer agent which moves protons from a base to an acid c)It is a small molecule which attac..
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