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what is the change in pH after addition of 10.0mL of 1.0M sodium hydroxide to 90.0mL oof a 1.0M NH3/1.0M NH4+ buffer? (Kb for ammonia is 1.8 X 10-5)
During this reaction, P4 + 5O2 → P4O10, 0.800 moles of product was made in 15.0 seconds. What is the rate of reaction
If 24g Mg is used and the percentage yield is 95%, how many grams of magnesium hydroxide should be recovered?
The total pressure in the system is found to be 3.0 atm and the mole fraction is 0.12. Find K(pressure) Can someone explain all the steps to get to the answer?
what would be the effects when changing the eluting solvents
Important information about Organic Chemistry, The most reasonable formula for a compound demonstrating M+ =101 with a minor M+1 peak is
If 3.1 mol of ethane (C2H6) undergo combustion according to the unbalanced equation C2H6 + O2 ->CO2 + H2O, how much oxygen is required?
If 95.0 mg of fluorine-18 is shipped at 8:00 a.m., how many milligrams of the radioisotope are still active if the sample arrives at the radiology laboratory at 1:30 p.m.
A certain radiation has a wavelength of 474 nm. What is the energy, in joules, of (a) one photon
Radioactive radon gas (222Rn) enters an average building at a rate of 5 picocuries per second per square meter of foundation area. Consider a house with a foundation of 400 square meters and a volume of 1000 cubic meters.
The lethal inhalation dose of sarin for a 200lb person has been determined to be 0.0015 mg. Determine the LD50 of sarin that researchers used to calculate this lethal inhalation dose.
Do you expect CN- anion to be affected by a magnetic field? Explain your reasoning. (d) What is the bond order of the anion CN- ? (e) What is the bond order of the neutral CN?
when 3.02g NH4Cl solid was dissolved in 20.05 ml water the temperature of the water dropped from 19.8 degrees celcius to 9.1 degrees celcius
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