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Lozana reported a 1.57% volume increase at 1 atm pressure upon melting for lithium metal at 180.54 degrees Celsius. If the density of the solid is 0.515 x 10^3 kg/m^3, as well as the heat of fusion is 3024 j/mol, Explain what will the melting point be at 1000atm
Give the hybridization of the indicated atom in the following: (first draw the Lewis structure for each) a. Carbon in OCCl2
Determine the pH of a solution containing A) neglecting activities. B) including activities The solution contains BOTH chemicals
each week an industry produces 2.0 times 103 m3d of a strong acid waste ph 1.5 during a 48 hour production cycle total
The reaction H2O2 --> H2O + O2 could be catalyzed by either MnO2 or beef liver, which contains the enzyme catalase. In either case, the catalyst
In the oxidation of ammonia to form nitrogen oxide; 4NH3 + 7O2 ---> 4NO2 + 6H2O, water is formed at an instantaneous rate of 42 mol L-1 s-1. A.) What is the normalized reaction rate? B.) At what rate is O2 consumed? C.) At what rate is NO2 formed?..
You have 250.0 mL of a 0.56M solution of sodium acetate. How many mL of 0.50M acetic acid should be added to make a buffer of pH 4.40?
What volume of 0.250 M Na3PO4 is required to precipitate all the lead(II) ions from 140.0 mL of 0.750 M Pb(NO3)2
When 2.45g of an unknown weak acid (HA) with a molar mass of 85.0 g/mol is dissolved in 250.0 g of water, the freezing point of the resulting solution is -0.255 C. Calculate Ka for the unknown weak acid.
A particular natural gas exists, in mole percents, of 83.0% CH4, 11.2% C2H6, and 5.8% C3H8. A 380 L sample of this gas measured at 22.2 degrees Celsius and 745 mm Hg, is burned at constant pressure in an excess of oxygen gas.
we need to dry something like protein and drugs, how to deal with them to avoid the deactivation phenomenon?
assuming that the total pressure of the gases is 1.52 atm and that their mole ratio is 94 4.0 1.5 0.50 calculate the
if 600 j of heat are added to 50 g of water initially at 20 degrees c.how much energy is this in calories?what is the
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