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How many liters of methane gas (CH4) need to be combusted to produce 8.5 liters of water vapor, if all measurements are taken at the same temperature and pressure? Show all of the work used to solve this problem.
CH4 (g)+ 2 O2 (g) ______CO2 (g)+ 2 H2O (g)
Silver chloride, often used in silver plating, contains 75.27% Ag.Calculate the mass of silver chloride in grams required to make 4.4 grams of silver plating.
What pH is needed to increase the solubility of Mn(OH)2 to 2.5 x 10-3M? Ksp for Mn(OH)2 = 1.6 x 10-13
Problem- Draw a Grotrian- type diagram for the first four lines of the lyman series in the hydrogen atom spectrum. Be sure to include all allowed transitions and to show the term symbols of the appropriate states.
Pure water containing no arsenic was spiked with .40micrograms arsenate/L. Seven replicate determination gave .39 ,.40, .39, .41, .36, .35,.and .39 microgram/L. Find the mean percent recovery of the spike and the concentration detection limit
An environmental engineer tells you that adjusting the pH to 8.5 will decrease total soluble Cr(III) to below 1 mg/L (1.92 x 10-5 M). Is this true? In other words, is the solubility of Cr(III) in the presence of Cr(OH)3(s) at a pH of 8.5 ? 1 mg/L.
What is the [OH-] of a solution which is 0.18 M in ammonium ion and 0.10 M in ammonia? Kb = 1.8 x 10-5
Why is it important to use lambda max (measured from spectroscope)? What I am unclear about is why it is important to know it before creating a standard curve?
Determine the [H3O+], [OH-], pH, and pOH for each of the following solutions. A solution of 1.65 x 10-4 M HCl
Write the formula for compounds formed between Aluminum and bromine?
Assuming a temperature of 500 K and expansion against 1. atm of pressure, how much work, in joules, can be done by the system if the octane is completely converted to carbon dioxide and water vapor. What will the enthalpy change be for the process
What's the definition of isotopes and example? explain your answer
the taste of sour milk is lactic acid. what is the molecular formula for lactic acid if the percent composition is
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