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A buffer is prepared by adding 115mL of 0.30 M NH3 to 145mL of 0.15 M NH4NO3. Explain what the pH of the final solution is. Kb= 1.8x10-5
Write the net ionic equation for this reac- tion occuring in water: Calcium sulfide and iron(II) bromide are mixed to form iron(II) sulfide and calcium bromide.
Write a balanced equation for the following reaction: nitric acid reacts with calcium hydroxide to produce water and calcium nitrate
The PH of 0.1 M MCL ( M+ Iis unknown cation ) was found to be 4.7. write an net ionic equation for the hydrolysis of M+ and it's corresponding equilibrium expression Kp . Calculate the value of KP
from your understanding of collniative properties how would you design an experiment to measure the freezing point of a
calculate the total length obtained when you add 12.3cm, 2.75dm, and 0.450m. give the answer in centimeters
Assuming that 0.5 grams of a 1.0 gram sample is CaCO3, what should the concentration of HCl (M) be if you want to use 25.0 mL for the titration
ultraviolet light strikes a metal plate and ejects electrons having kinetic energy E = 2.04 eV. Calculate the binding energy of an electron at the metal surface.
Given that 5.9 moles of carbon monoxide gas are present in a container of volume 63.7 L, what is the pressure of the gas (in atm) if the temperature is 47 °C
Draw the skeletal structure of the nucleophile that effected the ring opening resulting in the product with the (R)-configuration. Select the condition under which the (S)-configuration ring opening occurred.
What is the hydronium-ion concentration in a solution formed by combining 150 mL of 0.10 M NaOH with 50 mL of 0.30 M HCL. Ba(OH)2(aq) + 2HCl(aq) -> BaCl2(aq) + 2H2O
What would you expect to see in a reaction between salicylic acid and ferric chloride, and why
raise the temperature of an 12.5g piece of unknown substance from 13.0 oC to 26.2 oC. What is the specific heat for the substance?
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