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What are different types of separating techniques for separating salt and water?
Plot the speed distribution function for a.) Helium, O2,and UF6, at the same temperature, and b.) CO2at 300 K and 1000 K.
1 cfcs were used in hair sprays refrigerators air conditioners and plastic foams.nbsp which properties of cfcs made
The pH of a 0.175 M aqueous solution of a weak acid is 3.52. What is Ka for this acid
If 30.0mL of .150M calcium chloride is added to 15.0 mL of .100 M silver nitrate what will be the final concentration of all ions the remain in the solution?
What is the final temperature in a squeezed cold pack that contains 40.0 g of NH4NO3 dissolved in 135 mL of water? Assume a specific heat of 4.18 J/(g·°C) for the solution, an initial temperature of 25.0°C, and no heat transfer between the cold pa..
It is burned in excess O2 to form a mixture of water and carbon dioxide that contains 1.5 times as many moles of CO2 as of water. Find the mass of C2H2 in the original mixture.
how many grams of carbon are required to react with 1.5x10^25 atoms of hydrogen to form CH4
When X-rays with a wavelength of 154 pm (pm = 10^-12 m) are diffracted from an unknown crystalline compound, the first reflection occurs at theta= 4.24 What distance does that correspond to? (assume n =1)
CH3OH can be synthesized by the following reaction: CO(g)+ 2H2(g)-> Ch3OH(g) What volume of H2 gas (in L), measured at 754 mmHg and 88 C, is required to synthesize 27.6g CH3OH
a feed mixture of ethanol and water is 40 mole $ ethanol. the feed is at 200 degrees C and is at a high enough pressure that it is a liquid. It is input into the column through a valve, where it flashes. Column pressure is 1 kg/cm^2. Find the slop..
Use oxidation states to identify the oxidizing agent and the reducing agent in the following redox reaction. Express both answers as chemical formulas. 1. 2Na(s)+2H2O(l)--->2NaOH(aq)+H2(g)
What is the mass, in milligrams, of mercury in 1.00 kg lake trout that just meets the Northern American standard of 0.50 ppm Hg?
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