Calculate ch3coo- ch3cooh and ph at equilibrium
A 0.560-g sample of acetic acid is added to enough water to make 50.00ml of solution. Calculate [H+], [CH3COO-], [CH3COOH], and the pH at equilibrium. Ka for acetic acid is 1.8x10-5.
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If 414 mL of a gas measured at 26°C and 641 torr has a mass of 0.384 g, what are the molecular mass and molar mass?
An eight lane urban freeway (four lanes in each direction) is on rolling terrain and has 11-ft lanes with a 4-ft right-side shoulder. The interchange density is 1.25 per mile.
A solution contains a mixture of pentane and hexane at room temperature. The solution has a vapor pressure of 268 {rm torr}. Pure pentane and hexane have vapor pressures of 425 {rm torr} and 151 {rm torr}, respectively, at room temperature. What i
CHCOOH ↔ CH3COO- +H+ Write the equilibrium expression for the reaction. What is the concentration of H+ if the pH is 4.5? How would the concentration of each species change if H+ was added to the reaction from an outside source?
after 42 days a 2.0 g sample of phosphorus 32 contain only 0.25 g of the isotopt. what is the half life of the phosphours 32.
The difference between the total and static pressure before a shock is 75 psi. What is the maximum static pressure that can exist at this point ahead of the shock?
What is the pH of a solution obtained by dissolving two extra-strength aspirin tablets, containing 480 mg of acetylsalicylic acid each, in 210 mL of water?
A dissolve 8g of Ammonium iron (II)sulfate in 25cm3 of water that has been acidified with 1cm3 of 2M sylfuric acid.Add solution of oxalic acid (5g in 30cm3 water) and boil.Filter the yellow prepitate in a buchner funnel and was well with hot water
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Explain the risks of not reporting the results of your forensic assessment findings accurately. Provide specific examples.
Read "The Effect of Tart Cherry Juice Compared to a Sports Drink and Cycling Exercise Performance, Substrate Metabolism, and Recovery" from University Library
Identify and analyze one resource that provides information regarding services for dealing with and treating substance use and abuse in youth or adolescence.
Discuss how culture may influence one's perceptions. Provide an example of how culture may impact the interaction between a patient/client
Write an essay describing your achievement of a goal and your friends or family member's achievement of a goal using motivational theory
Pets can have a therapeutic effect on people; they seem to have the power to calm the anxious and cheer the depressed. Give three reasons
Review Chapter 12 and consider how your culture has impacted your worldview and personality. Pay particular attention to the section on characteristics of Cult