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The densities of the elements K, Ca, Sc, and Ti are 0.86, 1.5, 3.2, and 4.5 g/cm3, respectively What factors are likely to be of major importance in determining this variation? Which factor do you think will be the most important?
C5H12, 10.0 g hexane, C6H14 and 10.0 g benzene, C6H6. What is the mole fraction of hexane?
A solution is made up by dissolving 73 g of glucose in 966 g of water. Calculate the activity coefficient of glucose in this solution if the solution freezes at -.66 degrees C.
rubidium has two naturally occurring isotopes with mass 84.9118 and a natural abundance of 72.17 and with mass 86.9092
Question- Determine the molar solubility of Al(OH)3 in a solution containing 0.0500 M AlCl3. Ksp (Al(OH)3) = 1.3x10^-33
Draw a flow sheet to show how you would separate the componenets of a mixture containing an acid substance,toluic acid, a basic substance, p-bromo-aniline and anthracene, a nuteral substance.
The melting point of sodium is 98 degrees celcius. How much heat is absorbed by sodium when 800 grams os solid sodium metal become liquid at 98 degrees celcius?
How many grams of methane gas (CH4) need to be combusted to produce 18.2 L water vapor at 1.2 atm and 275 K? Show all of the work used to solve this problem. CH4 (g) + 2 O2 (g) CO2 (g) + 2 H2O (g)
When chemicals pour on the skin
A this lead apron is used in dental offices to protect patients from harmful x rays if the she measures 75.0 cm by 55.0cm by 0.10 cm and the density of lead is 11.3 g/cm what is the mass of the apron in grams
Solutions need to have the ionization constants compared
The EQ established when 2 moles of muck (s) are added to a 1 L solution of 3 moles of slop dissolved in slime (l) producing 1 mole of ick (g) and 2 moles of dissolved goo if the reaction goes the completion.
A paint company mixes it's paint with water to create more paint per gallon. They currently have ten gallon jugs which contain 10% water.
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