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1.26 (a) The temperature on a warm summer day is 87 °F.What is the temperature in °C?
(b)Many scientific data are reported at 25 °C. What is this temperature in kelvins and in degrees Fahrenheit?
(c) Suppose that a recipe calls for an oven temperature of 400 °F. Convert this temperature to degrees Celsius and to kelvins.
(d) Liquid nitrogen boils at 77 K. Convert this temperature to degrees Fahrenheit and to degrees Celsius.
Adipic acid, HOOC(CH2)4COOH, is among the top 50 manufactured chemicals in the United States (nearly 1 million metric tons annually). Its chief use is in the manufacture of nylon. It is a diprotic acid having Ka1=3.9×10?5 and Ka2=3.9×10?6.
A set of two gas bulbs, with volumes of 500 mL and 300 mL, are connected by a closed stopcock. The 500 mL bulb contains 450 torr of Ne gas, and the 300 mL bulb contains 150 torr of Cl2 gas
Octane has a specific heat of 2.22 J/g.K. (a) How many joules of heat are needed to raise the temperature of 40.0 g of octane from 10.0 oC to 40.0 oC? (b) Which will require more heat, increasing the temperature of 1 mol of octane by 10 degrees
If you fill the larger tank with oxygen to a pressure of 155atm , to what pressure should you fill the acetylene tank to ensure that you run out of each gas at the same time? Assume ideal behavior for all gases.
Calculate the number of grams of glucose must be dissolved in water in order to produce 100.0 ml of a 3.700 M glucose solution (C6H12O6). Density = 2.601
Presume that you need to prepare 4-methyl-2-pentyne also discover that the only alkynes on hand are acetylene and propyne. You as well have available methyl iodide, isopropyl bromide, and 1, 1-dichloro-3-methylbutane. Sketch an efficient synthesis..
Which of the following ionic compounds has the largest lattice energy (i.e., the lattice energy most favorable to a stable lattice)?
Carbon monoxide is often used in metallurgy to remove oxygen from metal oxides and thereby give the free metal. The thermochemical equation for the reaction of CO2 with Fe2O3 is Fe2O3 (s) + 3 CO (g)
The equation for the combustion of acetone is: 2 C3H6O + 8 O2 ---> 6 H2O + 6 CO2 + 852.6 kcal How much heat will be given off if 0.87 mol of acetone is completely burned?
Suppose that, from measurements in a microscope, you determine that a certain bacterium covers an area
how do you find the empirical formula of a compound if they don't give you percentages. For example, if they ask: what is the empirical formula for N2O4?
Why does ionization of a tertiary substrate proceed at a rate faster than that of a secondary substrate
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