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Question:
Hydrogen sulfide, H2S, has the characteristic odor of rotten eggs.
If a sample of H2S gas at 776.0 torr and 23.0°C in a 2.00-L container is allowed to expand into a 10.0-L container at 23.0°C, what is the pressure in the 10.0-L container? Enter your answer in the provided box.
What is the pH of Sodium Acetate solution before the HCL is added and after the HCL is added?
A piece of lead is placed into a graduated cylinder. The level of the liquid rises from 235 to 305 mL. What is the mass in grams of the lead if the density of lead is 11.3g/cm3?
Explain how a competitive inhibitor inhibits an enzyme and how the effect is different from that of an irreversible inhibitor.
What problems might we see if we increase the energy of the electron beam. And if we reduce the energy of the electron beam.
A 15.0-g sample of aluminum (specific heat = 0.902 J g-1 oC-1), initially at 95.0oC, is immersed in a 35.0-g sample of water (specific heat = 4.184 J g-1 oC-1), initially at 44.2oC, in an insulated container.
Consider the reaction of 1-butanol with PCC (pyridinium chlorochromate). Draw only the organic product derived from 1-butanol. If the product is an ion, do not draw the counter ion. If the given reaction has more than one step, give only the final..
Give the formulas of any solid products formed when the sodium salt of each of the anions in the far-left column is treated separately with 1)NH3 and BaCl2 solutions and 2) HNO3 and AgNO3 solutions. If no Precipitate would form write no reaction.
Problem- Begining with sodium acetylide (NaCCH), propose a three-step synthesis of hexanal.
Assuming that seawater has a total ion concentration (a.k.a colligative molarity) of 1.10 Mc, calculate how many liters of seawater are needed to produce 18.0 L of fresh water at 20 °C with an applied pressure of 68.0 bar.
Borax is used to standardize a solution of HCl. If 0.2334 g of borax requires 24.31 mL of HCl titrant, what is the HCl concentration
Calculate the pH of a 0.42 M solution of sodium acetate, CH3COONa. (Ka(acetic acid) = 1.8 x 10-5 )
A piece of metal with a mass of 13.2 g was dropped into a graduated cylinder containing 17.00 mL of water. The graduated cylinder after the addition of the metal is shown. Determine the density of the metal to the appropriate number of significant..
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