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In looking at the solubility rules, it seems that Calcuim Hydroxide is soluble in water. But does it really precipitated out during an experiment. How could this happen?
a. Ca(OH)2 is very soluble in cold water
b. Ca(OH)2 is insoluble in cold water
c. Ca(OH)2 is soluble in hot water
d. CaO is insoluble in hot water
e. Ca(OH)2 is insoluble in hot water
A 100.0 mL aqueous sodium chloride solution is 13.6% NaCl by mass and has a density of 1.12 g/mL. What mass of solute would you add to make the boiling point of the solution 104*C
The horizontal end of length L is closed but the vertical end is open to the atmosphere. A fluid of density (p) fills the tube to a height H and the tube is rotated about the vertical axis at rotational speed w. Find the gage pressure at the close..
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Write the cell reaction for the combination of these half-cell reactions that leads to the largest positive cell emf
Why are the bond angles of methane, ammonia, and water different for each even though the electron domain geometry is the same for each
If 1.26 L of H2 gas are formed at STP, how many gram of HCl reacted? The reaction is Zn(s) + 2HCl(aq) ( H2(g) + ZnCl2 (aq)
If 500 mL of air contains 2 x 1022 particles (atoms and molecules), how many particles do you inhale in one day if you breathe 15000 L of air?
Phenol is a weak organic acid with Ka=1.0x10^-10. How many grams of phenol do you need to add to 500. mL of water to make a pH=5.75 solution
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Draw the structure of phosphatidylethanolamine containing one lauric and one palmitoleic fatty acid. Show the ionic form expected at pH7.
Can the five percent approximation be applied in determining the pH of the following solutions? Yes No 8.07×10-3 M dihydrogen citrate ion Yes No 7.51×10-5 M chlorous acid Yes No 4.38×10-2 M carbonic acid Yes No 1.44×10-2 M hydrocyanic acid
two moles of a gas are compressed isothermally and reversibly at 300 k from an initial volume of 10 dm3 to a final
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