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A cylinder of gas at room temperature has a pressure p1. To what temperature in degrees Celsius would the temperature have to be increased for the pressure to be 1.5p1?
what are some difference or similarity in the type of inhibition caused by heat, acid or base and heavy metal ions on enzyme activity.
An unknown protein sample gave an absorbance of 0.867 ( corresponding to the average of three replicate analyses of the unknown sample). Calculate the mass (micrograms) of protein in the unknown. Calculate the absolute uncertainty for the answer.
Suppose that 0.490 mol of methane, CH_4(g), is reacted with 0.640 mol of fluorine, F_2(g), forming CF_4(g) and HF(g) as sole products. Assuming that the reaction occurs at constant pressure, how much heat is released
28.98 mL of a 0.1962 mol/L EDTA solution is required to titrate a sample to the equivalence point. How many moles of divalent metal cations were in your sample?
Calculate the potential delivered by a voltaic cell operating by the following reaction if all of the dissolved species have a concentration of 0.035 and the pressure of H2 (g) is 1.00 atm.
Write a balanced chemical equation for the oxidation of fe(s) by concentrated nitric acid two products of the reaction are NO2 and Fe3+
Marshmallow burnt is 0.70 g, mass of the water 39.9, and delta change is 12C 2. Peanut burnt is 0.5 g, mass of the water is 42.6 g, and the delta change is 12C. 3. Popcorn is 0 g burnt, mass of the water is 44.83 g, and the delta change is 1 C.
The volume of a sample of gas, initially at 25oC, increase from 158 ml to 450 ml. What is the final temperature (C) if the pressure in the container is kept constant.
assume you dissolve .297 g of the weak acid benzoic acid in enough water to make 105 ml of solution and then titrate
Calculate the amount of heat required to raise the temperature
A solution was prepared by mixing 50.00 mL of 0.190 M HNO3 and 124.00 mL of 0.150 M HNO3. Calculate the molarity of the final solution of nitric acid.
Calculate the heat released when 3.25 L of Cl2(g) with a density of 1.88 g/L reacts with an excess of sodium metal at 25°C and 1 atm to form sodium chloride.
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