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With ammonium carbonate and calcium chloride, On the basis of general solubility rules, predict the identity of the precipitate that forms when aqueous solutions of the following substances are mixed.
The absorbance of the diluted unknown solution made in accordance with the instructions in the exercise is found to be X where X=.645. Explain what is the concentration of the original unknown solution
The reaction of hydrogen with nitrogen to produce ammonia is shown below. If there are 12 moles of hydrogen
A 1.00 L balloon filled with nitrogen at 25 ° C and 765.3 torr is moved to a closed vessel with the pressure now at 659.3 torr and temperature 25 ° C.
A student is asked to prepare a 1 L buffer by adding 0.11 M sodium acetate to 0.09 M acetic acid solution. What is the pH of the buffer? Ka for acetic acid is 1.8 x10 -5
when 24.0 g of glucose a nonelectrolyte are dissolved in 500. g of water the solution has a freezing point of
explain with the help of a suitable clearly-labeled diagram the difference between molecular fluorescence and
Based off the principles of intermolecular forces, which liquid has the lowest vapor pressure?
Which of the following is a neutralization reaction?
What are the units for absorptivity where the path length is given in centimeters and the concentration is expressed in. a. parts per million
Write the chain propagation steps for the formation of dichloromethane in the chlorination of methane
a 125-g metal block at a temperature of 93.2 degc was immersed in 100. g of water at 18.3 degc. given the specific heat
Question- A student found that 0.300g of magnesium combined with oxygen to form 0.497g of magnesium oxide. What is the mass percentage composition of Mg, and O in magnesium oxide
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