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A mixture of Xe, Kr, and Ar has a total pressure of 0.67 atm. What is the mole fraction of Kr if the partial pressure of Xe and Ar are 1.60 atm and 2.8 atm, respectively?
Historically, the solid residue that is left after the Dichloromethane -or methylene chloride (CH2Cl2 )solution is evaporated has a lower melting point that its literature value, due to impurities.
when a .28 gram sample of limestone was decomposed by heating 75 millileters of CO2 at 750 mm Hg and 20 degrees celcius were evolved. How many grams of CO2 were produced?
Explain why triethylamine is a weaker base than dimethylamine or methylamine.
Which of the following gases at 500 K would show most ideal behavior?
Calculate the pH for each of the following cases in the titration of 50.0 mL of 0.110 M HClO(aq) with 0.110 M KOH(aq). The ionization constant for HClO is 4.0*10-8.
The crystalline form of silver (Ag) is composed of face-centered cubic unit cells. If the density of silver is 10.48 g/cm3 at room temperature,
How does the law of definite proportions help to distinguish between a compound of certain elements
Consider the following standard heats of formation: Standard Heat of formations for the substances:CO2(g) = -393.5 kJ/mol PbO(s) = -151.6 kJ/mol CO(g)
Draw the lewis structure of CH3NCS including all resonance forms. Assign formal charges.
A fully animated PowerPoint presentation explaining the molecular structure of fats, the difference between saturated and unsaturated fats and why bromine can be used to test for fats and how saturated they are.
Aluminum metal shavings (3.200g) are placed in 60.00 mL of (6.00 M hydrochloric acid. 1.00 L of hydrogen gas is collected in a buret over at 20 degress celsius and 1 atm. P(H2O)=17.5 torr.
A reaction takes place at a constant pressure of 1.10 atm with an internal energy change of 71.5 kJ and a volume decrease of 13.6 L.
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