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How much ice in grams would have to melt to lower the temperature of 358 g of water from 40 degrees to 0 degrees? (Assume that the density of water is 1.0 (g/ml)
What concentration of aqueous NaCl solution freezes at -15.2ºC? The freezing point of pure water is 0.0ºC and Kf of pure water is -1.86ºC/m.
Draw the structure of (E)-2,3,5-trimethyl-3-hexene. Clearly show the proper (E) or (Z) stereochemistry about the double bond.
4 HCl(aq) + MnO2(s)-> MnCl2(aq) + 2 H2O(g) + Cl2(g) Consider the reaction of 1.53 mol HCl with excess MnO2. How many moles of Cl2 form?
A solution of 0.1% sodium dodycl sulfate (SDS) binds so strongly to polypetide chains that one detergent molecule is sufficient to saturate two amino acid residues.
Using the van der Waals equation of state, what is the pressure of 1.423 mol of helium in a container of volume 5.412 L and a temperature of 25.0 C
The element bromine at room temperature is a liquid with a density of 3.12g/ml calculate the mass of 125 ml of Bromine . What volume does 85.0 g of bromine occupy?
Create a procedure of not more than 5 steps that you think will work to compare the efficiency of the light emitted by an incandescent light bulb to that emitted by a fluorescent light bulb. Make sure to mention all the variables you think you'll ..
Find the pH of a solution prepared by dissolving all of the following compounds in one beaker and diluting to a volume of 1.00 L: 0.180 moles acetic acid (pKa=4.75), 0.180 mole sodium acetate
consider the titration of 100.0 ml of 0.100 m h2nnh2 kb 1.8 multiplied by 10-5 by 0.200 m hno3. calculate the ph of
at 700ordmc keq 0.0152 for the following reaction2so2g o2g 2so3gwhat is numerical value of the equilibrium constant
The planet Jupiter has a mass 318 times that of Earth, and its surface temperature is 140 K. Mercury has a mass 0.05 times that of Earth, and its surface temperature is between 600 K and 700 K. On which planet is the atmosphere more likely to obey..
initially a 1.0 l container is filled with 2.0 mol of no2. as the system approaches equilibrium what happens to the
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