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To make a buffer from Asparagine, you dissolve 0.10 moles of this amino acid in 100 mL of water. What volume of 1M HCl or 1M NaOH do you need to add to the soluion to attain a final pH = 8.6?
Unit cell problem of copper (Cu) is a face-centered cube that has an edge lenth of 3.62 A (note: 1A=1*10^-10 m). Determine the volume occupied by one mole of copper atoms, , in terms of mL/mol.
Tf will be negative and so you must use negative Kf values. Either way, the freezing point of the solution should be lower than that of the pure solvent. Assuming 100% dissociation, Find the freezing and boiling points of 1.85 m Na2SO4(aq).
At 1.00 atm and 23 C, how many liters of carbon dioxide are formed by the combustion of 3.40g of butane?
If the same amount of sebacoyl chloride, 1,6-hexanediamine and sodium hydroxide were combined , but the solvent was used to afford a homogenous reaction mixture
Suppose four weighings of a crcucible were found to be 10.231 g, 10.278 g, 10.256 g, and 10.363. Obtain the average (mean) weight of the crucible
Determine the final concentration and Determine What mass of Ar is needed to exert half the pressure (at the same conditions of volume and temperature)?
Calculate the expected pH of the buffer after the addition of 1.0 mL of 1 M HCl. Remember that you are using 50 ml of the buffer so be sure to calculate the number of moles of acetic acid
How does the second law explain why heat travels from a substance at higher temperature to one at lower temperature?
As it expands, it does 135.8 J of work on its surroundings at a constant pressure of 783 torr. What is the final volume of the gas?
Determine the new pressure of the gas and express your answer in Pa
what is the maximum mass of aspartame you can add to 2.00kg of pure water and still have the solution freeze.
determine the minimum length of a surface crack that will lead to fracture. Assume a value of 0.96 for Y.
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