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Carbon disulfide, CS2, is a volatile, flammable liquid. It has a vapor pressure of 400.0 mmHg at 28.0°C and 760.0 mmHg at 46.5°C. What is the heat of vaporization of this substance?
Calculate the final temperature of 37 mL of ethanol initially at 11 degrees C upon absorption of 624 J of heat. (density of ethanol =0.789 g/mL).
For the gas-phase reaction 2 NO2 + F2 → 2NO2F, the rate constant k is 38 M-1s-1 at 27° C. The reaction is first order in NO2 and first order in F2.
DNA Coiling and Topoisomerase, draw a circular DNA molecule that contains 3 negative supercoils. In this DNA molecule, make L = 250 and T = 253. Don't draw the details here i.e., all 250 of the strand passages around each other.
An unknown liquid with a boiling point of 58 C at 670 mmHg is soluble in water, cyclohexane and alcohol, what's the liquid.
1.500 g of Mg(s) was combined with 125.0 mL of 1.0 M HCl. The initial temperature was 25.0oC and the final temperature was 72.3oC.
Determine the minimum mass of Sodium bicarbonate or sodium hydrogen carbonate that should be added to the spill to neutralize it?
A solution was made by taking 1.250g of KMnO4 and dissolving it in enough water to make 1.000 liter of solution. This solution was used to titrate H2C2O4·2H2O, a very pure substance. In acidic media, the reaction is.
What statement in incorrect about the following pairs of sugars? Galactose and mannose are diastereomers
the frequency factor a is 8.7x 10 12 s- and the activation energy is 63 kj/mol, What is the rate constant for the reaction at 75C
Solid sodium peroxide (Na2O2) reacts with liquid water yielding aqueous sodium hydroxide and oxygen gas. How much heat is released
A solution of ethanol (C2H5OH) in water is prepared by dissolving 63.5 mL of ethanol (density = 0.79 g/cm3) in enough water to make 250.0 mL of solution.
A rolled oat's piece has a thickness =1.2 mm. The density= 600 kg/m3, specific heat capacity=2200 J/kgK and thermal conductivity= 0.4 W/mK,The product is to be baked from twenty degree celsius.
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