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Find the concentration of calcium ions in a solution made by adding 3.50 g of calcium fluoride to 750. mL of 0.125 M NaF. [For CaF2, Ksp = 3.95 ? 10-11.]
Using scanning tunneling microscopy, scientists at IBM wrote the initials of their company with 35 individual xenon atoms.
Calcium carbide, CaC2, reacts with water to form acetylene. CaC2(s) + 2 H2O(l) C2H2(g) + Ca(OH)2(s) How many grams of water are needed to react with 473 g of calcium carbide?
What is the virial pressure of 0.693 moles of O2S gas at 350K in a 1000 cm3 container, given B = -7 cm3mol1-? atm (Report to 2 significant figures.)
A 0.08353 g sample of gas occupies 10.0-mL at 295.0 K and 1.10 atm. Upon further analysis, the compound is found to be 13.068% C and 86.932% Br. What is the molecular formula of the compound?
Assuming the [potato extract] is 0.001 M and you are going to make a 10 mL solution and each drop is 1/20th of a mL calculate the [potato extract] in each reaction solution.
What volume (in mL) of a 1.420M NaOH solution is required to titrate 25.0mL of 4.50M HCl solution.
An unknown metal with a mass of 100 g was heated to 100 C and placed into 30.0 g of water that had a temperature of 20.2 C. The final temperature of both substances
What is the maximum amount of O2 in grams that can be obtained from 2.00 x 102 g of nitroglycerin?
A sample of helium gas initially at 37.0 °C, 785 torr and 2.00 L was heated to 58.0 °C while the volume expanded to 3.24 L. What is the final pressure in atm
calculate the final temperature of the gas mixture. Assume the heat capacities of the gases are constant and are given in Appendix B of your text.
Calculate the pH of a solution prepared by dissolving 18.32 grams of benzoic acid and 43.23 grams of sodium benzoate in water sufficient to yield 1.00 L of solution.
If 0.600 gram of zinc is used, what is the amount of zinc chloride that is produced in the above reaction?
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