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Suppose you open a bottle of perfume at one end of a room. Very roughly, how much time would pass before a person at the other end of the room could smell the perfume, if diffusion were the only transport mechanism? Do you think diffusion is the dominant transport mechanism in this situation?
Calculate the MM of MgNH4PO4 · 6H2O. Assuming 100% theoretical yield, how many grams of P2O5 can be produced from 35.0 grams of PO43-?
Which of the following salts will make an ACIDIC solution when dissolved in water. a. NH4Cl b. Al(NO3)3 c. K2CO3 d. NaF Which of the following salts will make a BASIC solution when dissolved in water. a. NaHS b. Cu(NO3)2 c. KHCO3 d. NaF
Explain what is the lead (II) ion concentration in a solution prepared by mixing 381mL of 0.437 M lead (II) nitrate with 433mL of 0.362 M sodium fluoride. The Ksp of lead (II) fluoride is 3.6 × 10-
331 mg of an unknown acid was titrated with 0.110 m sodium hydroxide. the equivalence point is at 25.00 ml. what is
Give the bond angle and describe the shape around the central atom designated in this molecule.
A voltaic cell consists of an Mn/Mn2+ half-cell and a Pb/Pb2+ half-cell. Calculate [Pb2+] when [Mn2+] is 2.7 M and Ecell = 0.37 V.
When 2.25 g of sodium hydroxide (NaOH) was dissolved in 150.00 g of water a value of 11.00oC was obtained for ?T. Calculate the molarity of the sodium hydroxide solution. _______ Calculate the value (calories) for the heat of solution of 2.25 g of..
Compute the work done when 55.0 grams of tin mixes in excess acid at the pressure of 1.00 atm and at a temperature of 24°C.
The decomposition of carbon disulfide, CS2 to form carbon monosulfide, CS and sulfur is first order with k = 2.8 x 10^-7 / second at 1000 degrees C. CS2 => CS + S determine how many days would be needed before a 1.00 gram sample of CS2 had decompo..
If a test tube contains equal concentrations of Ba2+ Pb2+ Cu2+ and Na1+ describe how ions might be separated from one another by "selectively" precipitating one at a time by adding the appropriate negative ions in the correct order.
If a reaction was set up at 630K with initial partial pressures of methane of 105.1 torr and of 7.96 torr for I2. Compute the pressures, in torr, of all reactants as well as products at equilibrium.
assume that the company had introduced lean production at the beginning of the second quarter resulting in zero ending
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