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A displacement is related to time as x = A sin (2πft), where A and f are constants. Find the dimensions of A. (Hint: A trigonometric function appearing in an equation must be dimensionless.)
Calculate the molarity of a solution made by dissolving 0.650 Na2SO4 grams of in enough water to form exactly 950 mL of solution.
Calculate the theoretical yield of C2H5Cl when 135 g of C_2H_6 reacts with 225 g of Cl_2, assuming that C_2H_6 and Cl_2 react only to form C_2H_5Cl and HCl.
For an ensemble consisting of a mole of particles having two energy levels separated by 1000. cm-1, at what temperature will the internal energy equal 2.90kJ?
question a sample of zns is reacted with hclaq to form hydrogen gas. the h2 gas bubbles out of aqueous solution and is
for the reaction P4+S8=P4S10 what is the maximum amount of P4S10 which could be formed from 17.02 g of P4 and .128 mol of S8?
Write the structural formula of a compound with an unbranched chain of five carbon atoms that is an alkanal, Consider E/Z stereochemistry of alkenes. Do not show stereochemistry in other cases.
what is heat of vaporization of a liquid that has a vapor pressure of 606 torr at 84 degrees celsius and a boiling point of 96.3 degrees celsius at 1 atm?
Compare the numbers you have just calculated with the vapour pressures of water at these temperatures. Can you suggest a reason why the two sets of numbers are so different?
1.2 mol of helium is mixed with 2.3mol of argon in a volume of 1.0L and a temperature of 25.0 degree C. Assuming that helium and argon are perfect gases, what is the pressure of the mixture?
If not how much powder remains undissolved. If so, how much more powder can be dissolved before a saturated solution is reached
calculate the ph of a solution made from mixing 25.0 ml of 2.00 mhcl with 20.0 ml of 1.75 m ca oh2. giving thatcalcium
The following data were obtained from experiments to find the molecular formula of lidocaine, a local anesthetic, which contains only carbon, hydrogen, nitrogen, and oxygen.
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