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The Equilibrum constant Kc for the reaction N2+3H2=2NH3 at 450C is 1.59x10-3. Calculate the equilibrium compostion when 1.00 mol N2 is mixed with 3.00 mol H2 in a 2.00 L vessel.
How many grams of oxygen are required to completely burn 5.90g of C3H8 in the following unbalanced
A 100. mL sample of 0.10 M HCl is mixed with 50. mL of 0.12 M NH3. What is the resulting pH?(kB FOR NH3= 1.8 x 10^-5)
Analysis of a carbohydrate showed that it consisted of 40.0 % C, 6.71 % H and 53.3 % O by mass. Its molecular mass was found to be between 140 and 160 amu. What is the molecular formula of this compound?
What is the density of a rock that weighs 10 grams and displaces water in a graduated cylinder from 100 to 120 mL.
starting with any alkane, alkene, or alkyne as your only organic reactant, propose a series of chemical reactions that will yield
Determine at what minimum angle relative to the centerline perpendicular to the doorway can someone outside the room hear no sound?
I dissolved .5 grams of mustard in 3 mL of distilled water. I was asked to determine the mass percentage of acetic acid in mustard, so I added 2.5 mL of NaOH to turn the mustard solution red.
Calculate the thickness of a salt layer left after evaporating an ocean of 35%u2030 salinity and 4-km depth.
if 489 mg gas occupies 249 mL at 80 degrees celcius and 745 mmHg of pressure, what is the molar mass of the gas.
The water level in a graduated cylinder initially at 225 rises to 278 after a piece of lead is submerged. What is the mass in grams of the lead?
Silver consists of two major isotopes with the following percent abundances and atomic masses: 107Ag (51.84% and 106.90509 amu) and 109Ag (48.16% and 108.90476 amu). Calculate the average atomic mass of silver to five significant digits.
Describe in 75 words the structure of the carbon atom. What types of bonds does carbon form and why?
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