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On average, a sample of human blood whose dimensions are 0.10 mm × 0.10 mm× 0.10 mm contains 6700 red blood cells. The volume of blood in a typical adult is about 4.7 L. How many red blood cells are there in an average adult?
for which Kp=2.00 at 20 C. A mixture of NO(g) at a partial pressure of 1.50 atm and NO2(g) at a partial pressure of 0.50 atm is allowed to come to equilibrium in a sealed container maintained at 20 C.
draw an energy level diagram for Hydrogen starting at n=2 and ending at n=6. (n=1 transitions are high-energy transitions and emit in the ultra-violet region).
A certain first-order reaction () has a rate constant of 6.90×10-3 at 45 . How many minutes does it take for the concentration of the reactant, , to drop to 6.25 of the original concentration?
The solution freezes at -0.085C. How many grams of urea were dissolved to make this solution? Please show work
A solid brick of dry ice (CO2) weighs 0.75 kg. Once the brick has fully sublimated into CO2 gas, what would be the volume of solid brick at STP.
There are two key concepts to keep in mind throughout the exercises: 1) What is the unit cell for each structure? 2) What are the coordination environments of the atoms involved?
Calculate the amount of work in kilojoules (kj) needed to move an object that weighs 500 grams through a distance
Density and Identity, The mass of 5.00 mL carbon tetrachloride is 7.97g. What is the density of the carbon tetrachloride?
how many moles of oxygen gas will be produced by the decomposition of 111.5 g of lead(II)oxide.
If wave (a) has a wavelength of 1.0 m and a frequency of 3.0*10^8 cycles, what are the wavelength of wave
To learn how to calculate the solubility from Ksp and vice versa. Consider the following equilibrium between a solid salt and its dissolved form (ions) in a saturated solution:
How would the observed molar mass of the unknown lioquid have been affected by the following circumstances (would it be higher, lower than the true value, or remain unchanged.
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