Why hydrochloric acid to produce zinc chloride
Zinc reacts with hydrochloric acid to produce zinc chloride and hydrogen gas. How many milliters of 3.00m HCI are required to react with 12.35 g of zinc?
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A sample of hydrated copper(II) sulfate (CuSO4nH2O) is heated to 150 degrees centigrade and produces103.74 g anhydrous copper (II) sulfate and 58.55g water.
Given that the world's oceans contains 1.35 x10^9 km^3 of water, determine the mass in grams.. show how to obtain converstion factors from km^3 to m^3, and from m^3 to cm^3. Use 1.03 g/cm^3 as the density of sea water.
Lakes in the Adirondack mountains of New York state areparticularly susceptable to acid rain. One strategy that has been suggested to overcome the acidification of these lakes is to peridocally add limestone (CaCO3).
A man in a bosun chair dangles from a massless rope, which runs over a massless, frictionless pulley and back down to the man's hand. Combined mass of the man and chair is 95.0 kg.
If a pentapeptide was found having the amino acidsPhe,Gly,Met,Ala, and Ser. N-terminal analysis yielded the PTH derivative of alanine. Partial hydrolysis of the pentapeptideyielded the dipeptides Gly-Ser, Ala-Gly, and Ser-Met. What is the peptide
A 0.4-kg object is traveling to the right (in the positive direction) with a speed of 2 m/s. After a 0.2 s collision, the object is traveling to the left at 3 m/s. What is the magnitude of the impulse (in N-s) acting on the object? The answer must
The objects volume is determined by displacement of water in a 100mL measuring cylinder (±5%): the volume reading before the object is immersed is 52.4mL, and after immersion the reading is 85.7mL.
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