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The principle quantum number defines the shell (which is roughly, but not quite exactly, the row, or period, of the periodic table). Demonstrate the difference between the rows of the periodic table and the shells defined by the principle quantum number by calculating the number of electrons in the n = 1, n = 2, and n = 3 shells and comparing those with the number of electrons in the noble gases Helium, Neon, and Argon.
Acetylene gas (C2H2) is produced as a result of the following reavtion. CaC2(s) + 2H2O(l) yield C2H2(g) +Ca(OH)2(aq)
what is the density of a sample of ammonia gas if the pressure is 705 mmHg and the temperature is 63.0 degrees C
What volume would 50.0 L of Helium gas at a pressure of 736 Torr and 20 C occupy at STP
Determine how many grams of copper sulphate are there in 219 grams of an aqeous solution that is 20.2% by weight of copper sulphate?
Calculate the total concentration of lead for a system containing a fixed concentration (0.01 M) of KI. Note (s) denotes solid and (aq) denotes aqueous
A 49 gram sample of impure potassium nitrate (KNO3) was heated to complete decomposition according to the equation 2 KNO3(s) → 2 KNO2(s) + O2(g) After the reaction was complete.
If the titrant has a molarity of 0.2750 M and there are 5.00 mL of analyte present, what is the molarity of the analyte
How many grams of aspirin were lost in the washing process you used to purify your product, assuming you used 50mL of water for washing? The solubility of aspirin in water is 0.33g per 100mL at room temperature.
The following questions pertain to the magnitude of the x-component of the speed(absolute value of the velocity) cx=|vx| of atoms in a gas, whose probability distriubution has the form P(cx)= ae^-bc2/x. Write down the integral you would need to eva..
Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?
make a reversible isobaric expansion to state B: (V=44.8L). make a reversible isochoric expansion to C: (p=0.5atm), and finally makes a reversible isothermal compression back to A.
What is a zymogen? Is it used over and over like other enzymes? And what is the physiological advantage
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