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Question- Chemists commonly use a rule of thumb that an increase of 10 K in temperature doubles the rate of a reaction. What must the activation energy be for this statement to be true for a temperature increase from 18°C to 28°C?
It is not a question in the book, so I just need the full solution of deriving!
Calculate the corresponding Bohr's orbit radius. - Calculate and compare the probabilities for the electron to be at distances larger and smaller than this value.
magnesium has three isotopes mg-24 mg-25 and mg-26. the percentage abundance of each in order is 78.70 10.13 11.17.
Calculate the wavelength (m) associated with an electron that travels at 65% of the speed of light.
The distance from the earth to the nearest stars is measured in light-years. Convert the distance 5.4 light-years to SI units m
It takes 53.0 j to raise the temperature of an 10.2 g piece of unknown metal from 13.0 C to 24.9 C. What is the specific heat for the metal. Answer in value and units (fully) for full points.
Calculate the [OH-] in 0.050 M potassium fluoride, KF The answer choices are: A. 8.3 × 10-7 M B. 4.7 × 10-7 M C. 6.2 × 10-7 M D. 1.4 × 10-6 M E. 2.2 × 10-6 M
Indicators change colors over about 1-1.5 pH units. For bromthymol blue, the pKa is about 7.0. Estimate the pH range over which the color change occurs for bromcresol green indicator.
In the following reaction, what mass of mercury(II) oxide, HgO, would be required to produce 473 L of oxygen, O2, measured at STP
After experiment 20.09 gram anodic solution contained 0.06227 gram silver nitrate at same time 0.009479 gm Cu was deposited in copper coulometer placed in series. Calculate the transport number of silver and nitrate ions
a basketball is inflated to 9.0 psi (pounds per inch) above atmosphere pressure of 14.7 psi ( a total pressure of 23.7 psi). The diameter of the basketball is 10 inches. What is the pressure of the air in the basketball, expressed in atmospheres?
A solution prepared by mixing 59.5 mL of 0.360 M AgNO3 and 59.5 mL of 0.360 M TlNO3 was titrated with 0.720 M NaBr in a cell containing a silver indicator electrode and a reference electrode of constant potential 0.175 V.
how can their efficiency be less than 100 and the law of conservation of energy still be valid? 9. an incandescent
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