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How many milliliters of 3.4 M NH4Cl must be added to 250 mL of 0.23 M NH3 to obtain a buffer solution having pH=9.40?
The partial pressures of PCL5, PCl3, and Cl2 are .875 atm, .463 atm, and 1.98 atm. What is the value of equilibrium constant?
bynbsp solving this problemnbsp student cannbsp find limiting as well as excess reactant and also amount of product
Suppose that the atomic mass unit (amu) had been defined as one-eighth 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
Calculate the mass of material required if 1500 calories of energy causes a change from -27 degrees fahrenheit to 91 degrees celcius and the specific heat capacity is 0.25 joules/gram-degree C.
A researcher studyng the nutritional value of a new candy places a 4.50 gram sample of the candy inside a bomb calorimeter and combusts it in excess oxygen. The observed temperature increase is 2.68 C.
Draw a Lewis structure for each molecule and determine its molecular geometry. What kind of intermolecular forces are present in each substance?
What is the concentration of CO in molecules per cubic meter?
the carbonyl stretching frequency of aliphaticltbgt carboxylic acids in dilute solution is located near 1770cm. this
Write a mechanism for nitration of benzoate if you could draw this out and be as detailed as possible I would appreciate it
a sample of gas has a volume of 0.106 L at 37 degrees Celsius and 0.920 atm. what is the volume of stp (1 atm and 0 degrees Celsius)
Describe two types of regulation of the enzyme glutamine synthetase and explain why the regulation
A thermos container has 0.075 kilograms of distilled water at a temperature of 27 degrees Celcius. A 0.0076 kilogram sample of solid ammonium nitrate is dissolved in the water in the Thermos container and the temperature is measured to be 22.4 deg..
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