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A neon sign made of glass tubing whose inside diameter is 2.0 cm and whose length is 4.0 m. If the sign contains neon at a pressure of 1.5 mm Hg at 35 degrees C, how many grams of neon are in the sign?
How many mL of 12.1 M HCl solution do you need to dilute to make 100 mL of a soltion with 10 wt%
What is the molar solubility of lead(II) chloride in a solution that also contains 0.15 M Cl- ions at 25 °C? The Ksp of PbCl2 is 1.6 × 10-5.
Drink cost $1.00 for 24oz or $0.76 for 0.50L. Assume 1qt=32oz. What is the price per liter of the 24oz bottle
For a first ordwr reaction theconcentration of the reactant was reduced from .0150 M to .0120 M after heating at 500 c for 150 s. What was the concentration of the reactant after 250 s. What was the half life
The diagram shows four states of a system, each with different internal energy, E. Which of the states of the system has the greatest internal energy?
Calculate the pH of a 1.36x10^-2M solution of the decongestant ephedrine hydrochloride if the pKb of ephedrine (its conjugate base) is 3.86.
Calculate the volume of ammonia required to bring the pH to 3.00 and to 8.00. Kb (NH3) = 1.8 x 10^-5.
If you used 20 ml water to recrystallize salicylic acid at 10 °C, estimate the amount of product that can be lost as a result of dissolving in the filtrate. (solubility at 10 °C =0.14/100 ml water). Calculate the loss if you had used 4 mls of wate..
Calculate the pH of a 1 MNH4Cl solution. Express your answer using one decimal place.
First, plot the potential energy as a function of the electron's distance from the nucleus, i.e.,V(r) . (Be sure to remember the sign of this potential.)
The addition of anhydrous calcium chloride to the crude product obtained from the separation procedure often results in the product becoming clear what causes this clearing
mercury barometer with an inner diameter of 10.00 mm? Recall that the area of a circle is A = ? r2 and that 1 N = 1 kg m/s2.
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