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1) CaF2 at room temperature has a solubility of 0.00160 g of CaF2 per 100g of water. How many moles ofCaF2 are there?
2) If presuming a solution of CaF2 is saturated and has a density of 1.00g/ml; explain how many moles will dissolve in 1.00L of solution?
suppose that ammonia applied to a field as a fertilizer is washedinto a farm pond containing 3.0 times 106 l of water.
How many grams of sodium lactate must be added to a 1.00L solution of .400M lactic acid to make a buffer with a pH of 3.7??
What masses of NaCl and water are needed to prepare 1000g of a solution that is 0.90% by mass
Name the types of attractive forces that must be overcome in order to do the subsequent. Select all that apply. 1.) Boil liquid ammonia dipole-dipole forces, dispersion forces. hydrogen bond, ion-dipole forces ion-ion interparticle forces, metalli..
Which molecule has only 90° and 180° bond angles and one lone pair of electrons on the central atom. XeF4 SeF4 BCl3 ClF5
the molar mass of air is 29.9g/mole and density of air at these temp. is 1.22 g/L. how much methane do u have to heat the sir from 15 centigarde to 22 centigrade
what is the hybridization of each carbon for the following structure? explain each one and provide the line structure.
After careful consideration, the student decides to se the method of recrystallization. What should be the characteristics for a good solvent that the student should consider? Identify them by circling those that apply:
Add charges, single electron dots, and/or pairs of dots as appropriate to show the Lewis symbols for the most stable ion of each element. Treat as the valence shell in all cases. To add formal charges, click the button below (which will turn yello..
a sample of gas occupies 328 mL at 20 degrees C. What is its volume when the temperature is increased to 45 degrees C.
An unknown element, X, reacts with chlorine to form a compound with the formula XCl2. Which element is most likely to be element X?
Averge frequency of light emitted a 100 w lightbulb is 5.5x10^14 Hz. How many photons per second does the light bulb emit?
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