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.
Expected delivery within 24 Hours
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?
1944012
Questions Asked
3,689
Active Tutors
1460463
Questions Answered
Start Excelling in your courses, Ask a tutor for help and get answers for your problems !!
Question: Which medications are used to stop an active seizure?
The health record becomes admissible to court after O a subpoena duces tecum has been issued and processed it is retrieved under court order
A nurse is planning education for the caregivers of a child newly diagnosed with sickle cell anemia. The nurse should plan to include teaching about and
What causes febrile seizures? An elevated temperature. An underlying seizure disorder. A prolonged elevated temperature.
Question: Why have some professional athletes covertly used amphetamine stimulants?
Place each term in the correct column that identifies either an organ system or body area. Labels Drop Zones Reset
Problem: The nurse is caring for a 2-month -old infant who is the victim of shaken baby syndrome.