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if the height of the mercury column in the leveling bulb is 20 mm greater than that in the gas buret and the atmospheric pressure is 650 mm, what is the pressure of the gas trapped in the buret?
Gaseous HBr has an absorption band centered at about 2645 cm-1 consisting of a series of lines approximately equally spaced with an interval of 16.9cm-1.
A proton in a linear accelerator has a de Broglie wavelength of 144 rm pm. what is the speed of the proton?
Find the volume and the intermolecular force present in ammonia at STP in the following reaction and What is the intermolecular force is present in NH3(g).
Marble (calcium carbonate) reacts with hydrochloric acid solution to form calcium chloride solution, water, and carbon dioxide. What is the percent yield of carbon dioxide
A volume of 95.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C .
What is a trans fat? Why would partially hydrogenated oils contain higher amounts of trans fats than natural fats and oils? Why are saturated and trans fats considered a risk factor for cardiovascular disease?
A solid mixture contains MgCl2 and NaCl. When 0.5000 g of this solid is dissolved in enough water to form 1.000 L of solution, the osmotic pressure at 25°C
Chemistry - Other explained in this solution, If world energy consumption continues to rise at the present rate of 2.4%, how long will it take to double (expressed in years)?
if 19.65mL of .145M nitric acid is required ti neutralize 50.0mL of barium hydroxide what is the molar concentration of the base? 2HNO3+Ba(OH)2-->Ba(NO3)2+2H2O
Determine which flask has the smallest amount of water vapour and which one has greater vapor pressure of H 2 O?
10g of CaCO3 are treated with a solution of HCl and 1.12 litre of CO2 are produced at STP . find out the number of moles of HCl in the solution
In the chemical formula for alu, there are 12 water molecules present. It is also possible to prepare the anhydrous compound potassium aluminum sulfate. On the "molecular scale" describe how a crystal of alum differs from a crystal of potassium al..
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