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Question- If 2.00 grame of HEPES and 2.70 grams of HEPES-H+ are mixed and diluted to a final volume of 1.00L, what is the pH of the resulting buffer?
Write the complete solution in short and simple way
What volume of solution should be dispensed from the buret to provide 5.633 mmol CO2-3 ? Answer in units of mL.
An equilibrium mixture of SO2,O2 and SO3 gases at 1500k is determined to consist of 0.244 mol/L SO2, 0.172 mol/L O2 and 0.56 mol/L SO3.
A flask is filled with vapor by boiling a volatile unknown liquid in the flask. As it boils away, the vapor of the unknown pushes the air out of the flask through a tiny pinhole opening and eventually the flask is filled with an atmosphere compose..
What must be the velocity, in m/s, of a beam of electrons if they are to display a de Broglie wavelength of 1 nm? (the mass of an electron is 9.109x10 -28 g)
to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Complete and balance the following redox equation using the smallest whole-number coefficients. What is the coefficient of Sn in the balanced equation
Calculate the mass of sodium hydroxide needed to to prepare 100 mL of a 0.10 M solution?
You have a solution that is 18.5% (v/v) methyl alcohol. If the bottle contains 1.20 L of solution, what is the volume (V) in milliliters of methyl alcohol
Dehydration upon heating with concentrated sulphuric acid without carbocation rearrangement?
In a reaction 82.00 g of sodium reacts with 74.00g of ferric oxide to form sodium oxide and iron metal. calculate the mass of solid iron produced
The vapor pressure of ethanol at 34.7 degrees Celsius is 100mmgh, and the heat of vaporization of ehanol is 38.6 kj/ mol. What is the vapor pressure of ethanol in mm Hg at 65.0 degree celcius
The chemical equation of adding water to the product of heated CuSO4. 5H2O and its reaction classification.
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