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A glucose solution is ready by dissolving 15.2 of glucose in 250 g of water. A student needs to make a sucrose solution with the same molality. Explain how many grams of sucrose should she use with 150 g or water, if that defines how much solution she needs to prepare?
A 32.65-g sample of a solid is placed in a flask. Toluene, in which the solid is insoluble, is added to the flask so that the total volume of solid and liquid together is 54.00 mL
An X-ray photon of wavelength 0.976 strikes a surface. The emitted electron has a kinetic energy of 958 eV. What is the binding energy of the electron in?
4 liters of an ideal gas at 200 K is heated to 400 K. What is the gas's new volume assuming the number of moles and pressure remain constant
Explain how you would prepare each of the following compounds from benzene: a. phenol b. o-ethyltoulene c. 3-chloroaniline d. p-nitrobenzoic acid
a buffer solution is prepared by mixing 75ml of a 0.275m ofc7h5o2f wilth 55ml of a 0.472m solution of c7h4o2fna. the
water for the temperature of the trapped gas, will the calculated mass percent of metal in the sample be greater than, less than, or equal to real mass percent?
How many oxygen atoms are there in 52.06 g of carbon dioxide. How many O atoms does each carbon dioxide molecule contain.
Order the following elements in terms of decreasing electron affinity (note that a decreasing electron affinity, refers to an increasing tendency to want to capture an electron): Ar, Cl, Na, S
Explain when the divider is broken, the ammonium nitrate dissolves as per to the following endothermic reactionNH4NO3 (s)--->NH4+NO3-(both aq).
A mixture of 6.0 mol of H2(g) and 3.0 mol of O2(g) is placed in a sealed evacuated container made of a perfect insulating material at 27 C. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the water.
its initial value in a first-order reaction, what is the rate constant for the reaction in the units min-1?
After the reaction was comlete, the volume of the dry has produced was 1 liters at 75 degrees celsuis and 721 torr. what was the percent potassium notrate in the original sample?
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