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Problem- Write the balanced equation for the ionization of the weak base pyridine, C5H5N, in water, H2O. Phases, such as (aq) or (l), are optional.
State the solution for the problem
calculate the work if the gas is now re-compressed to 2liter by reapplying the 8bar of pressure. assume that the process is carried out reversibly and isothermally
A dry-cleaning solvent (molecular weight = 146.99 g/mol) that contains C, H, and Cl is suspected to be a cancer-causing agent. When a 0.112 g sample was studied by combustion analysis, 0.201 g of CO2 and 0.0272 g of H2O formed.
Vanadium has two naturally occurring isotopes,V with an atomic mass of 49.9472 amu andV with an atomic mass of 50.9440. The atomic weight of vanadium is 50.9415.
If a segment of DNA consists of 5'-TCTAGC-3', the nucleotide order in the complementary mRNA strand (written in 5' to 3') would be:
Which of the following compounds exhibits the pattern of m/z values shown below? 41, 43, 57, 87, 101, 116 a. propylbromide b. sec-butyl isopropyl ether c. isopropyl bromide d. 2-hexanol e. 2-butanone
A gas mixture with a total pressure of 770 contains each of the following gases at the indicated partial pressures: , 265 ; , 134 ; and , 159 . The mixture also contains helium gas. What is the partial pressure of the helium gas?
Treatment of this disaccharide with alpha mannosidase yields D-mannose and D-glucose. Draw the structure of the trisaccharide and state its systematic name.
If the symbol X represents a central atom, Y represents outer atoms, and Z represents lone pairs on the central atom, the structure Y--X(with 2 lone pairs)--Y can be abbreviated as XY2Z2
how many metric tons of 5-s coal would be needed to yield the h2so4 required to produce a 3.0-cm rainfall of ph 2.00
compute the total pressure atmosphere atm of a mixture of helium gas he of 0.0200 molnbsp and 0.0100 mol of hydrogen h2
Thermochemistry : Comparing Heat Capacity of Bricks and Water, A house is designed to have passive solar energy features. Brickwork incorporated into the interior of the house acts as a heat absorber. Each brick weighs approximately 1.8 kg
A dead alkaline battery is found to contain a compound of Mn and O. Its analysis gives 69.9% Mn and 30.4% O. What is the empirical formula for the substance.
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