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Trees in cold climates may be subjected to temperatures as low as -60 C. Estimate the concentration of an aqueous solution in the body of the tree that would remain unfrozen at this temperature. Is this a reasonable concentration? Comment on your result.
What is the minimum amount of 5.2 M H2SO4 necessary to produce 23.0 g of H2? according to the following reaction. 2Al(s)+3H2SO4(aq)-->Al2(SO4)3 (aq)+3H2(g)
The final temperature of the gas, Would it be feasible to make ethanol, C2H5OH, by the following reaction ( under standard conditions and 25 degrees C)
2A(g) + 3B(g) → A2B3(g) If 0.5 atm of gas A is mixed in an evacuated reaction flask with 1.0 atm of gas B, what is the final pressure in the reaction flask? (assume that the reaction goes to completion)
calculate the PH of a buffer solution prepared by dissolving 21.5 g benzoic acid and 37.7g sodium benzoate in 200.0 mL of solution?
What is atmospheric pressure in atmospheres in Denver for heat of fusion=40.6kj/mol at 95 degee celsius
In a chemical reaction (unbalanced equation), AsF3 + C2Cl6 = AsCl3 + C2Cl2F4, the theoretical yield of C2Cl2F4 was calculated to be 1.86 mol. If the percent yield in the reaction was 77.2%.
Advantages and disadvantages of using Alternative Fuel and Would you consider buying one of these in the future? Why or Why Not and Why do you think there are not more of these vehicles in use?
What is the equation for the reaction of cyclohexene wtih MnO4- to form 1,2-cyclohexanediol and MnO2 in a basic medium.
A fifty litres container of stainless steel was charged with 5.00 atm of H2(hydrogen gas) and 6.00 atm of O2(oxygen gas). A spark ignited this mixture (hydrogen gas & oxygen gas)
A student is given four solid samples labeled W, X, Y, and Z. All have a metallic luster. She is told that the solids could be gold, lead sulfide, mica (which is quartz or SiO2), and iodine.
how many meters away is a cliff if an echo is heard one half second away? assume that sound ws traveled at 343 m/s on that day.
A mixture of twenty five grams of potassium nitrate(KNO3) and two grams of CuSO4*5H20 with 11.5 grams of water at 100 degree celcius temperature, 15 g ramsof water are mixed.
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