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Question: Calcium fluoride dissociates in water per the equation shown below. in a pure solution of CaF2, what would the fluoride concentration be (in moles/L) when the calcium concentration is 0.25 moles/L.
CaF2 Ca2+ + 2F-
Nitrate compounds are insoluble and form precipitates. Most carbonate compounds form precipitates due to their low solubilities. Group IA elements form compounds that are precipitates.
draw the structure of the expected dichlorocarbene adduct of methyl methacrylate. another product could have been obtained. It is the chloroform adduct to the double bond (Michael type reaction). what would this structure look like.
A sucrose (C12H22O11) solution that is 45.0% sucrose by mass has a density of 1.203 g/mL at 25 C. Calculate its: a. molarity b. molality c.vapor pressure (vp H2O at 25 C=23.76 mm Hg) d.normal boiling point
Calculate the concentrations of all species in a 0.370 M Na2SO3 (sodium sulfite) solution. The ionization constants for sulfurous acid
If the pH of a solution is more than the pKa of an acid dissolved in it, is more of the acid in the protonated form or deprotonaqted form
How much heat is produced in burning 5 mol of CH^4 under standard conditions if reactants and products are brought to 298 K and H20(l) is formed
How many mL of 0.145 M NaOH solution will be required to neutralize 5.00 mL of a 0.829 M HCl solution
Question- 1) What combination of a molecular base and a salt of the conjugate acid of the molecular base should you select to prepare a buffer solution that would maintain a pH of approximately 9.50. Please Explain.
At 25 degrees Celsius the rate constant for the decomposition of a pesticide solution is 6.40e-3 min-1. If the starting concentration of pesticide is 0.0314M, what concentration will remain after 62.0min at 25 degrees Celsius
Two particles with charges q1 and q2 are separated by distance d. Rank these scenarios according to the magnitude of the electrostatic (coulombic) potential energy.
The density at 20 degrees celsius of a 0.500 M solution of acetic acid in water in 1.0042 g/mL. what is the molality of the solution? the molar mass of acetic acide, CH3CO2H is 60.05 g
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 26 Celcius. The mixture is ignited with a spark and it reacts to form liquid water. Find the temperature of the w..
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