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A mixture of He, Ne, and Ar has a pressure of 12.20 atm at 28.0°C. If the partial pressure of He is 3.61 atm and that of Ar is 4.21 atm, what is the partial pressure of Ne? Show work and steps!
Calculate the pH after 0.015 mol solid NaOH is added to 1.00 L of a solution containing 0.050 M propanoic acid (HC3H5O2, Ka = 1.3 x 10 -5) and 0.080 M sodium propanoate (NaC3H5O2)
assign oxidation numbers to all the elements in each of the following compounds or polyatomic ions: a)C2H3O2^- b)AlCl3 c)NH4^+ d)HBrO4
Plaster of Paris, CsSO4 x XH2O, is a fractional hydrate; that is, one water molecule attaches to more than one formula unit. If a 2.002-g sample has a mass of 1.878 g after hearing, find the water of crystallizatioin (X), and write the formula for..
Estimate the change in entropy if fifty kilo joules of energy are transferred reversibly and isothermally as heat to a large block of Cu at zero degree Celsius and seventy degree Celsius?
determine the structures of Compounds A, B, C, D, and E. Show calculations. Support all of your structure determinations.
Imagine that a beaker of pure water and another beaker containing water and some NaCl are both boiling under 1 atm pressure. Which of the following statements do you think is correct for this case
Specific compounds are named in the boxes below and the functional group part of the name is in boldface. For each boldface functional group, draw an expanded structural formula.
how much limestone must be decomposed by heating to produce 150.0 grams of lime cao?assuming that the limestone
The vapor pressure of benzene (C6H6) is 40.1 mm Hg at 7.6 C. The delta H vap=31.0 KJ/mol, what is benzene's vapor pressure at 60.6 C?
If you want to prepare a 0.5 M solution of ascorbic acid using 25.0 mL water, how many moles of ascorbic acid do you need. How many grams of ascorbic acid is this
a balloon is filled to a volume of 7.00 x 102 ml at a temperature of 20.0 oc. the balloon is then cooled at constant
Problem- Name the conjugated diene with formula C6H10 that contains a methyl group on the nonpenultimate carbon
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