You have 5000 ml of a buffer solution containing 030 m
You have 500.0 mL of a buffer solution containing 0.30 M ammonia (NH3) and 0.20 M ammonium chloride (NH4Cl). What will the pH of this solution be after the addition of 20.0 mL of 1.00 M HCl solution? [Kb = 1.8 x 10-5]
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A positive point charge q1=2.5x10^-5C is fixed at the origin of corrdinates and a negative charge Q2=-5x10^-6C is fixed to the x axis at x=+2m
A certain fluidized-bed combustion vessel has an investigation cost of $ 100,000, a life of 10 years, and negligible market (resale) value. Annual costs of materials, maintenance, and electric power for the vessel are expected to tota
How much alcohol must be burned to generate enough heat to warm 279kJ from 60 degrees fahrenheit to 180 degrees fahrenheit
• Identify an industry that the Internet has transformed or destroyed. • Then think of a new industry that the Internet has created. • What are the reasons behind the changes
The text presents the target rate of unemployment as being about 5 percent. William Vickrey, a Noble Prize winning economist, argued that the target unemployments rate should be seen as being between 1 percent and 2 percent.
At 320 K and 16 atmospheres, the molar volume of ammonia (NH3) is about 10 % less than that of an ideal gas. Explain this observation.
Given two vectors a = 3.1i -3.4j and b =6.7i+8.7j, What is the magnitude (in m) of the vector a, Find the direction (in ° = deg) of the vector a, Find the magnitude of the vector b
A 1.000L solution is prepared in which Au+,Ag+,and Cu+ ions are present in solution as nitrates all at a concentration of .001M a solution of sodium chloride is slowly added. which compound will begin to precipitate first the ksp
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What is the difference between direct and indirect democracy? Think about the last time you voted in a government election (in any country, at any level)
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