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A hemoglobin molecule can bind up to four oxygen molecul;es.in a certain experiment a 0.085L solution containing 6g of deoxyhemoglobin was reacted with an excess of oxygen in a constant pressure calorimeter of negligible heat capacity. calculate the enthalpy of reaction per mole of oxygen bound if the temperature rose by 0.044degree celsius
Calculate the mass percent composition of carbon in each the following carbon compounds. Express your answer using 4 significant figures. C4H10 C6H10 C8H13O5N
In a cell constructed between a compartment containing a zinc electrode immersed in a 0.1 M ZnSO4 (aq) solution and a compartment containing a copper electrode immersed in a 0.1 M CuSO4 (aq) solution,
A sample of neon has a volume of 270 mL when it is at a pressure of 831 mmHg. What will be the volume when the pressure is increased to 1238 mmHg?
The minimum amount of energy required to bring about a chemical reaction is called
How many total moles of ions are released when the following sample dissolves completely in water. 8.47x10^-2g of Ca(NO3)2
stilbene isomerizes to isostilbene when dissolved in benzene with an appropriate catalyst. isostilbene also isomerizes
Compute the hydroxide ion concentration in a NH 3 solution that is 0.091 M and 0.028 M NH 4 Cl. Kb of NH 3 is 1.8 x 10 -5 .
A gas expands and does P-V work on the surroundings equal to 259 J. At the same time, it absorbs 216 J of heat from the surroundings. What is the change in energy of the system?
how many liters of H2 would be formed at 530 mm Hg and 15 degrees celcius if 20.5g of zinc was allowed to react?
Analysis of two unknown organic structures, Unknown compound A (C8H12) is reacted with H2 (excess) in the presence of a palladium catalyst forming compound B (C8H16).
it has been estimated that halleys comet has a mass of 1 x 110 tons. This comet is estimated to lose 1x 80 tons of material each time its orbit brings it close to the sun. With an ordital period of 76 years, what is the maximum remaining life span..
solid sodium reacts violently with water produing heat hydrogen gas and sodium hydroxide. how many molecules of
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