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If 2.01 g of He gas occupies a volume of 12.0 L at 25 degrees C, what volume will 6.52 g of He gas occupy under the same pressure?
At a particular temperature the equilibrium constant for the reaction: H2(g) + F2(g) ? 2HF(g) is K = 36.0. A reaction mixture in a 10.00-L flask contains 0.42 moles each of hydrogen and fluorine gases plus 0.15 moles of HF.
Find the amount of thermal energy produced in kilojoules when 18.9 g of water is heated from 16°C to 98.0°C.
a cube of brass 2 cm on a side is heated until the temperature of the brass is 75oc. the cube is quickly added to 100
sulfate dissolves as follows: Na2SO4(s) → 2Na+(aq) + SO42- (aq). How many moles of Na2SO4 are required to make 1.0 L of solution in which the Na concentration is 0.10 M?
A voltaic cell consists of a Mn/Mn2+ electrode (E° = -1.18 V) and a Fe/Fe2+ electrode (E° = -0.44 V). Calculate [Fe2+] if [Mn2+] = 0.050 M and Ecell = 0.78 V at 25°C.
The product of the complete hydrolysis contained 1.3 mg of the compound shown below, and no other 2,4-dinitrophenyl derivatives of the amino groups of other amino acids could be found. How may popypeptides are in this protein
Write the structures of all dimethylcyclobutanes. Specify those that are chiral. Show the planes of symmetry in those that are not. Explain.
A balloon holds 2.5 liters of helium at a temperature of 25C and 1 atmosphere of pressure. What volume will the balloon have after it rises to where the atmospheric pressure is 0.8 atmosphere and the temperature is -10C
A water sample is suspected to be contaminated by iron (III) ions. How could you determine if the sample is really contaminated
draw the organic and inorganic products and select the correct (R) or (S) designation around the stereocenter carbon in the organic substrate and organic product. Include wedge/dash bonds and H on a stereocenter.
Write down mass balance and charge balance equations for 0.100mol L-1 Na2C2O4(aq). Mass Balanced Equation= Charge Balance Equation=
The bottle is brought outside and stored at 0.0°C. (See Table 5.2) (a) What mass of water condenses inside the bottle? _______g (b) Would water condense at 10 degrees C?
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