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Write a complete set of quantrum numbers (n,l and m) that quantum theories allows for each of the following orbital (A) 2p and (B) 3d
A flask contains 300mL of 0.12M phosphate buffer that has a pH of 7.2. What volume of 0.2M HCl should be added to drop the pH to 6.7
50ml HCl reacted with 50ml NaOH and the change in temperature was 6.7oC. Will the temperature change increase or decrease if 25ml 1M HCl reacts with 75ml 1M NaOH?
Write the half reactions and the net cell reaction for the following cell. Calculate the cell potential. S.C.E. || MnO4- (aq, 0.035 M), Mn+2 (aq, 0.022 M), pH = 4.50 | Pt(s)
If solubility of a gas is 7.5 g/L at 404 kPa pressure, what is the solubility of the gas when the pressure is 2021 kPa?
in a documented essay of 900-1200 words please address the following topics.1 what is the difference between an ionic
If the concentration of Mg2+ ion in seawater is 1350 mg/L, what OH- concentration is required to precipitate Mg(OH)2
If you take a 10.5mL portion of the stock solution and dilute it to a total volume of 0.350 L, what will be the concentration of the final solution.
A buffer solution is prepared by adding 0.20 mole of ammonia and 0.30 mole of ammonium chloride to enough water to make one liter of solution. Ka = 5.7 x 10-10 for ammonium.
drinking water was determined in seven replicate measurements with the following results (in ppb): 1.84; 1.92; 1.94; 1.92; 1.85; 1.91; 1.97. What is the standard deviation of these measurements in ppb?
What is the effect of raising the temperature or increasing the carrier gas flow rate on the ability to resolve two closely
What is the enthalpy of this reaction? Assume that no heat is lost to the surroundings or to the coffee cup itself and that the specific heat of the solution is the same as that of pure water.
many people think salt is added to water to increase the boiling poing so pasta will cook faster. how much salt would
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