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Explain what is the equation for the formation of the precipitate formed in a test tube containing calcium hydroxide?
The vapor pressure of pure water at 25C is 23.8 torr. A solution is made by mixing 18.52g of an unknown non-ionic substance into 200.00g of water and the vapor pressure of the solution is found to be 23.3 torr. What is the molecular weight of the ..
If the volume of the flask is presumed to be 125mL instead of the measured volume, would the computed molar mass of the liquid be too high or else too low or unaffected by the experimental error
What is the maximum number of grams of NaCl that can be added to 4.0 L of a 0.0090 M lead(II) chloride solution (without changing the volume significantly)
In a solution containing the following dissolved species, which would contribute positively to alkalinity. Explain
A solution is prepared by dissolving 13.3 g ammonium sulfate in enough water to make 100.0 mL of stock solution. A 11.50 mL sample of this stock solution
Explain how do the C-H stretching frequencies of the cycloalkanes alter from cyclobutane to cyclopentane to cyclohexane? Explain this observation
For the following reaction, 3.00 grams of chlorine gas are mixed with excess sodium iodide. The reaction yields 4.38 grams of sodium chloride.
Show the full mechanism of bromination for both 2,4-nitrophenol
the heat capacity of liquid water is 4.18 jg degrees c and the heat of vaporization is 40. kjmol. how many kilojoules
What is the value of k at 15 s? M-1s-1 What is the value of k at 25 s? M-1s-1 (C)Use your results from parts A and B above to decide what the order of the reaction is for your data. (Enter 1 or 2) (D)What is the concentration of [A] at time t=64 s..
What is the name of the haemoglobin variant? Would this haemoglobin demonstrate a left or right shift on an oxygen dissociate curve ? Fully justify your answer.
Nitrogen gas reacts with hydrogen gas to make ammonia(NH3). 15.5 L of N2 reacts at STP to make 30 L of ammonia. What is the percent yield?
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