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When M2S3 is heated in air, it is converted to MO2. A 4.000g sample of M2S3 shows a decrease in mass of .277 g when it is heated in air. What is the average atomic mass of M?
Chromium metal can be plated from an acidic solution of CrO3. CrO3(aq) + 6H+(aq) + 6e- Cr(s) + 3H2O How many grams of chromium will be plated by the passage of 19,300 C (coulombs).
4 Fe(s) + 3 O2(g) → 2 Fe2O3(s). If 12.5 g of iron(III) oxide (rust) are produced from 8.74 g of iron, how much oxygen gas is needed for this reaction?
Compute the difference in the ionization energies for the 1H 2H atoms(The ionization energy is the energy of the transition from the n=1 to the n=infinity energy levels for the hydrogen atom. )?
Use this information to compare how long it will take to obtain molecular scale mixing of such a gas over i) distance 1*10^-4 m and ii) 10m
Design a tube and shell heat exchanger for the fluids and duty given for you and complete Project Management tasks
The very dense metal iridium has a face-centered cubic unit cell and a density of 22.56 g/cm3. Use this information to calculate the radius of an atom of the element.
If 6.0 moles of ethene and 6.0 moles of hydrogen are introduced into a 2.0 L sealed vessel and allowed to equilibrate at 200ºC, what is the equilibrium concentration of the ethene
Important information about Proteins, A globular protein in aqueous surroundings contains the following amino acid residues; phenylamine, methionine, glutamate, lysine, and alanine.
if a 50.0 liter container holds 45 moles of a gas at a temperature of 200 C what is the pressure inside the container
How many milliliters of water must be added to a stock solution of 6.00 M HNO3 in order to prepare 500 mL of 0.200 M HNO3 by dilution.
A .117 gram sample of a metal reacts with hydrpchloric acid to produce 36.3mL od dry hydrogen gas. what is the equivalent weight of this metal.
You have 50 mL of 0.010 fully protonated histidine. how many milimoles of base must be added to bring histidine solution to pH equivalent to the pI of histidine.
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