Calculate the heat of fusion of water
Given that the heat of fusion of water is -6.02 kJ/mol, that the heat capacity of H2O is 75.2 J/mol*K and that the heat capacity of H2O is 37.7 J/mol*K, calculate the heat of fusion of water at -10 degrees C.
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Use R to solve this question. Scores made on a certain aptitude test by nursing students are approximately normally distributed with a mean of 500 and a variance of 10000. What proportion of those taking the test score below 200?
Naturally occurring iodine has an atomic mass of 126.9045. A 12.3849-{\rm g} sample of iodine is accidentally contaminated with 1.00070 {\rm g} of ^{129}{\rm I}, a synthetic radioisotope of iodine used in the treatment of certain diseases of the t
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If the pooled sample is positive then individually test each of the 500 samples in the pool. What is the probability that we obtain a positive test result for a randomly chosen pooled sample?
10 mL aliquots of natural water were pipetted into 50 mL flasks. Exactly 0.0, 0.5. 10.0, 15.0, and 20.0 mL of a standard solution containing 11.1 ppm of Fe were added to each, followed by an excess of thiocyanate ion to give the red complex Fe(SCN
A boat has a mass of 6800 kg. Its engines generate a drive force of 4400 N, due west, while the wind exerts a force of 720 N, due east, and the water exerts a resistive force of 1200 N due east. What is the magnitude and direction of the boat's ac
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