Determine the ph after the addition of naoh
We add 10 mL of 0.1 M NaOH to 100 mL of solution containing 0.1 M CH3CO2H and 0.1 M CH3CO2-. (Ka = 1.8 x 10-5) Using the Henderson-Hasselbalch equation, pH = pKa + log([A-] / [HA]), determine the pH after the addition of NaOH.
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The rate constant of some reactions double with every 10 degree rise in temperature. Assume that a reaction takes place at 295 K and 305 K. What must the activation energy be for the rate constant to double as described?
Mass Mol Atoms Moles Mol Mass Moles Atoms g mol Atoms Moles How many atoms are in 1 g of What is the mass of 1 the substance shown below? Mole of the substance shown below? 10 g of the substance below equals how many moles?
Suppose that 1.02 of rubbing alcohol evaporates from a 75.0 aluminum block. If the aluminum block is initially at 25C, what is the final temperature of the block after the evaporation of the alcohol? Assume that the heat required for the vaporizat
What percent of [Ca3(PO4)2] (a major component of bone) is Ca and what mass of Ca is present in 1 kg [Ca3(PO4)2]? 3.46 How many grams of sulfur are needed to react completely with 246 g of mercury to form HgS?
Draw an electron-dot structure for hydrogen peroxide. Write balanced chemical equations for reactions of hydrogen peroxide, and tell whether hydrogen peroxide is acting as an oxidizing agent or a reducing agent in the reactions.
How would you prepare 100ml of 0.5M NaOH? Calculate the mass of NaOH needed, and describe the procedure and glassware you would use.
A sample of neon gas is held in a rigid 1.814L container with a pressure of 1.273atm at 25 C. 3.193g of an unknown gas is added to the container. The temperature remains constant, but the pressure rises to 2.386atm. What is the molar mass of the a
A patient needs to take 625 of ibuprofen twice daily. The pills in the bottle are each 250. How many pills does the patient need to take each time she wants the 625 dosage?
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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