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What is the the concentration of each ion present in the solution formed by mixing 3.90 g KCl in 75.0 mL of 0.280 M CaCl2 solution. Assume that the volumes are additive
Based on the notion of weak and strong acids and bases, which of the following three actions would you expect to produce the largest ( most negative) ΔHneut. the smallest ΔHneut
A beaker with 1.90×10 2 mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100.
Calculate the mass (in mg) of KCN needed to make 500. mL of aqueous KCN solution with a pH of 10.00.
The molar heat capacity of a diatomic molecule is 29.1 J/K·mol. Assuming the atmosphere contains only nitrogen gas and there is no heat loss, calculate the total heat intake if the atmosphere warms up by 5°C during the next 50 years in J/mol
The concentration of a biomolecule inside a rod shaped prokayorate call is 0.0025M Calculate the number molecules inside the cell, which is 2.4 um long and 1.4 um in diameter.
Assuming 100% dissociation, calculate the freezing point and boiling point of 2.72 m AgNO3(aq).
Nuclides below the valley of stability can become more stable through which of the following processes
5.00 ml of water sample was titrated for hardness with 4.15ml of 0.0200m edta. write the equation for the reaction and
Ethanol v dimethylether, What are the molecular weights of ether and dimethylether? Are they isomers of each other or is each an isomer of something else?
How wil you determie the relative reactivites of aromatic compounds? Outline the procedure that you need to do in the laboratory to determine the relative reactivites of the following:
For the reaction at constant temperature, as Q increases A) ?G and ?G? increase. B) ?G and ?G? decrease. C) ?G increases, but ?G? remains constant. D) ?G decreases, but ?G? remains constant.
Determine the quantity of unknown protein that has an absorbance of 0.202 when a blank has an absorbance of 0.086. The determined calibration curve has the form of a straight line with the equation A=0.0182*m+0.007,
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