Why should samples be tightly packed in capillary tubes
Why should samples be tightly packed in capillary tubes ( to find melting points ) and what are 2 problems with performing MP with wet product?
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A sealed flask with a capacity of 1.00 dm3 contains 7.55 g of carbon dioxide. The flask is so weak that it will burst if the pressure exceeds 9.500 X 105 Pa.
Providing excellent customer service is essential in any business. A bank samples 7 tellers and monitors the time to complete a transaction. The times ( in whole minutes) are 2,4,2,5,2,3, and 10. The variance for the data calculated is 4.33. Given
If, instead, the gold is drawn out into a cylindrical fiber of radius 2.700 µm, what is the length (in m) of the fiber?
A specific brand of gourmet chocolate candy contains 7.00g of dietary fat in each 22.7-g piece. How many kilograms of dietary fat are in a box containing 2.00lb of candy?
Suppose a box contains 4 balls labeled 1,2,3,4. Three balls are randomly selected from the box with replacement. Let X= the smallest of the 3 numbers on the balls chosen. Find the probablity mass function (pmf) for X.
A 104 W lightbulb has a resistance of about 12 when cold (20°C) and 137 when on (hot). Estimate the temperature of the filament when hot assuming an average temperature coefficient of resistivity a = 0.0060 (C°)-1.
At ordinary body temperature (37 degrees Celsius) the solubility of N2 in water in contact with air at ordinary atmospheric pressure (1.0 atm) is 0.015 g/L. Air is approximately 78 mol % N2.
A vessel contains 0.90 g liq H2O in equilibrium with water vapor at 30C. At this temperature, the vapor pressure of H2O is 31.82 torr. What volume increase is necessary for all the water to evaporate?
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