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If 0.500 L of aqueous solution with a density of 1.05 g/ml contains 18.3 ug (micrograms) of poison, express the concentration in ppm and ppb.
A sample of gasoline contains various hydrocarbons, which comprise atoms of carbon, hydrogen, and oxygen. The hydrocarbons mix together uniformly to form gasoline.
Draw the base pairing between 8-oxoguanine and cytosine and 8-oxoguanine and adenine. Use single bonds to represent hydrogen bonds.
How much heat in Joules was lost by the water. How much heat would be lost by the water if 1 mole of KCl had dissolved. c) What is (Delta Heat reaction) in kL/mole for this process, which can be written as KCl (s) --> KCL (aq)
What effect would an increase in temperaure have on the experimentally determined Ksp of KHT?
A 0.2 036 g sample containing only BaCl 2 and NaCl is dissolved in 5 0.0 mL of distilled water. Titration wi th 0.1410 M AgNO 3 requires 19.46 mL to reach the endpoint
Calculate the mean percent of hydrogen peroxide when three determinations were 3.03% , 2.89% and 3.22%
consider the titration of 50.0 ml of 0.217 m hydrazoic acid hn3 ka 2.6 x 10-5 with 0.183 m naoh. calculate the ph of
Sodium peroxide (Na2O2) reacts with water to form sodium hydroxide and oxygen gas. Write a balanced equation for the reaction and determine how much oxygen in grams
What is the reaction order with respect to each reagent for the following reaction? Then write the rate law equation.
What mass of liquid water remains in the flask when equilibrium is established? The equilibrium vapor pressure of water at 55 °C is 118 mm Hg.
When lithium metal is heated strongly in an atmosphere of gaseous nitrogen, the product formed contains 59.78% Li and 40.22% N. Determine the empirical formula of the compound.
What unusual aspect of water is responsible for it unique characteristics as both a liquid and as a solid? Give examples of how this property of water would affect food systems during processing.
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