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Consider the following potential sources of error in an experiment designed to calculate the value of x in MgSO4 . x H2O. Predict whether the value of x of the hydrate will be high, low, or unchanged as a result of each error and please explain.
-Water was observed around the mouth of the test tube after heating.
-The anhydrous residue decomposed upon heating, liberating a gas.
-The hydrate spattered during heating and some of the sample was lost.
What is the concentration of a saturated calcium carbonate solution?
Which one of the following processes involves a decrease in entropy. A) the decomposition of NH3(g) to H2(g) and N2(g B) The condensation of steam to liquid water C) The sublimation of CO2 from solid to gas D) The evaporation of ethanol E) The dis..
if you prepare a 1.00 solution of beginning with water at 27.5 what is the final temperature of the solution in ?
the addition of a crystal of sodium chlorate to a sodium chlorate solution causes additional crystals of sodium chlorate to precipitate. the orginal solution was what
at a particular temperature the first-order gas-phase reaction n2o5 ----gt 2no2 12 o2 has a half-life for the
Still on Le Chatelier's principle, Ketones are known to be less reactive in aldol condensations.
A certain weak base has a Kb of 7.30 × 10-7. What concentration of this base will produce a pH of 10.07
A 0.01 M solution of hyperchlorous acid , which is a monoprotic acid, has a pH of 6.5 at 67 degrees C. Determine the Ka value of this acid.
what is the maximum mass of an object traveling at 549 m·s-1 for which the de Broglie wavelength is observable?
An X-ray beam of unknown wavelength is diffracted from a NaCl surface. If the interplanar distance in the crystal is 287pm and the angle of maximum reflection is found to be 7.28, what is the wavelength of the X-ray beam
Determine the numerical values of the parameters A, B, and C in the Antoine equation relating vapor pressure of pure substances to temperature using an appropriate linear regression procedure.
How will each of the following affect the measured vapor pressure in comparison to the actual vapor pressure of your liquid (increase, decrease, no change)
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