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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.
The Br-F bond distance in the interhalogen compound BrF is 1.76 Å. Use this information to estimate the average
An equilibrium mixture of the above system was found to contain the following concentrations: HCl(g) = 0.35 mol/L, O2(g) = 0.078 mol/L and H2O(g) =1.2 mol/L. The equilibrium concentration of Cl2(g) is calculated to be _______ mol/L
A certain inorganic cation has an electrophoretic mobility of - 2 4 cm 4.31 10sxV. Thissame ion has a diffusion coefficient of - 26 cm 9.8 10sx . If this ion is separated from other cations by CZE with a50.0 cm capillary, what is the expected plate c..
what is the density of the block? How to approach the problem The apparent mass of the object in the fluid, 5.6 , is equal to its mass in air, 50.0 , minus the mass of the displaced fluid
question the solubility of ammonium chloride at 30.0 c is 41.1 g per 100 g of water. what is the maximum amount in
Problem- Hydrogen gas reacts with oxygen gas to form water vapor. If 5.50 g of hydrogen gas react with 10.50 g of oxygen gas, how many grams of water vapor will be produced
Calculate the molar solubility of Fe(OH)2 in a buffer solution where the pH has been fixed at the indicated values. Ksp = 7.9 x 10-16.
Explain what is the structure of the ICI2- ion. Examine the bonding in ICI2- by whatever the identical model(s) you feel is (are) appropriate. Explain how does the structure compare to the structure of xenon difluoride.
Explain what is the theoretical yield of aspirin in grams and moles)show calculations. If you start will 5.16 grams of salicyclic acid. The mass of the crude aspirin is 6.89 grams and the mass of the recrystallized aspirin is 2.66 grams
How many milliliters of a 120 mL solution of 1.51 M BaCl2 must be used to make 16 mL of a solution that has a concentration of 0.3 M Cl-?
Calculate the solubility (in grams per 1.00*10^2mL of solution) of magnesium hydroxide in a solution buffered at pH = 12.S1= 1.2*10^-8 g/(1.00*10^2mL)
The radioisotope iodine-131, used to image the thyroid, has a half-life of 8.0 days What fraction of iodine-131 remains in the body after 3.0 days?
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