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What is the pH of the solution which results from mixing 150 mL of 0.25 M CH3CO2H(aq) and 125 mL of 0.25 M NaOH(aq) at 25 degree Celsius?
Which answer lists all of the following responses that are endothermic and none that are exothermic? 1. boiling water 2. freezing water
Calculate the pressure when the volume is 1.27 L and the temperature is 3.00 × 102 K.
Phosgene, COCl2, is the chemical warfare gas commonly called mustard gas. It decomposes as written below. At 900 C, the Kc= 0.83. Assume 0.400 mol of COCl2 are admitted into a 2.00 L container at 900C.
Draw a line-bond structure for a compound with a molecular formula of C5H14 and one carbon with only one hydrogen attached to it.
If the reaction of 25.0 mL of 1.0 M HBr and 35.0 mL of 1.0 M KOH produces 1.45 kJ of heat, what is the change in entalpy of HBr + KOH per mole of water formed
A sample of Br2(g) takes 50.0 min to effuse through a membrane. How long would it take the same number of moles of Ar(g) to effuse through the same membrane
When we looked at assigning the electrons in nitrogen to sites in the 2s and 2p orbitals, we used the 2s anti-bonding site. Which statement about this site is not true?
A second worker approaches to within 5 meters behind a shield that attenuates 60% and remains there for 20.0 minutes. What is the ration between the absorbed doses for the two workers
A water sample was taken from a lake. A 100.00mL portion of this sample was pipetted into a 250mL Erlenmeyer flask. EriochromeBlack T-indicator, sodium cyanide, and ammonia buffer
what is the maximum number of electrons that can have a principal quantum number of 3 within one atom? options 8 18 3
For the following reactions, write the balanced formula equation, complete ionic equation, and net ionic equation. (Use the lowest possible coefficients.
In the reaction Cd+CuSO4?CdSO4+Cu, what is the reduction half reaction. What is the reducing agent. Explain your answer.
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