In one experiment, 0.780 g Nb (s) was sealed in a 28.0 mL glass tube at 25°C under 6.33 atm of hydrogen gas, H2. After reacting with the hydrogen for one week, all of the niobium had been converted to niobium hydride, NbH. Calculate the final pressure of hydrogen gas in the system at 25°C.
Step by Step Explanation Ethylene, C2H4, will react with hydrogen gas under appropriate conditions to form ethane, C2H6. A 10.0-liter vessel is charged with 1.5 atm of hydrogen and 1.0 atm of ethylene at 25°C. The reaction is allowed to proceed to completion. Determine the total pressure in the vessel at 25° at the compl ...continues
Step by Step explanation Ferrous oxalate, FeC2O4, will decompose on heating: FeC2O4 (s) ® FeO (s) + CO2 (g) + CO (g) A 1.25-gram sample of FeC2O4 is added to an evacuated 2.00-liter steel vessel. The vessel is heated to 400°C, at which point all the FeC2O4 is decomposed. Calculate the pressure inside the vessel at 400 ...continues
Potassium chlorate, KClO3, decomposes when heated: KClO3 (s) ® KCl (s) + 3/2 O2 (g) 1.00 gram of potassium chlorate is completely decomposed and the oxygen is collected over water at 25°C and 0.99 atm. Calculate the total volume of gas collected. (The vapor pressure of water at 25°C is 23.8 torr).
Design experiment to reduce Fe+3 to Fe+2
I just need some help to get started on designing an experiment for a quantitative colorimetric iron assay. We're allowed to use the followiing items: deionized water 0.02 M feCl3 1,10-phenantnthroline ferrozine filter paper test tubes and test tube racks volumetric flasks HCl NaOH digested soil samples undigeste ...continues
What is the most stable ion then arrange from smallest to largest
What is the most stable ion then arrange from smallest to largest? K Mg Al Se Cl Which are isoelectric with Argon? O2- Ca2+ S2- Se2-
State which compound in each of the following pairs of ionic substances has the most exothermic lattice and why NaCl, CaS Li2O, Na2O LiF, NaCl MgO, CaS plus two requirements that should be satisfied for a molecule to be polar
How many electrons should appear in the Lewis structure of the following
how many electrons should appear in the Lewis structure of the following: H3O+ SCN- HCO3- O2- N2O4 BF3 dtermine the formula change on the following Cl-O ClO4-
If I have 500mL of a buffer solution containing 0.2 M acetic acid and 0.3 M sodium acetate, what will the pH of this solution be after the addition of 20mL of 1.00 M NaOH solution? Can you please show me all steps?
The respective standard reduction potentials in V for Ni2+ and Ag+ are -0.28 and +0.80. The oxidizing agent in a cell based on nickel and silver is __________. a. the salt bridge b. Ag+ c. Ag d. Ni e. Ni2+ Respective standard reduction potentials in V for Fe2+ and Ag+ are -0.44 and +0.80. Determine the value of E ...continues
