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if 489 mg gas occupies 249 mL at 80 degrees celcius and 745 mmHg of pressure, what is the molar mass of the gas.
If (initially) 0.22 mol of Br2 and 0.22 mol Cl2 are introduced into a 1.0 L container at 400. K, what will be the equilibrium concentration of BrCl? Assume the initial product concentration is zero.
what is the correct expression for computing the volume of gas at STP and determine What is the mass percent yield from 1.79 g of Sb in excess S, is obtained if 1.14 g of Sb 2 S 3 ?
Calculate the empirical formula and then determine the molecular formula of this compound using the given molar mass. b) Draw three lewis structures for molecule that satisfies the octet rule for each atom.
A creature moves at a speed of 3.20 furlongs per fortnight (not a very common unit of speed). Given that 1 furlong = 220 yards and 1 fortnight = 14 days
Calculate the pH of this buffer solution after the addition of 0.010 moles of solid sodium hydroxide to the buffer
Molecular and ionic equations, What would be the proper balanced molecular and net ionic equations for each of these neutralization reactions?
If you drop 25 g warm nails initial temp 65.4 into coffee cup calorimeter that contains 100.0 g water at 20 degrees Celsius, what will the temperature be.
When maleic acid is heated to about 100C it forms maleic anhydride.however fumaric acid requires a much higher temperature
A 45.0 g block of aluminum initially at 28.0C absorbs 548 J of heat. What is the final temperature of the aluminum?
2ZnS + 3O2 = 2ZnO + 2SO2 how many moles of Zno are produces when 32 gms of oxygen is allowed to react with an excess of ZnS?
how many grams of vinegar are required to react completely with 25.0g of baking soda.
The Greenhouse Effect - how the sun's visible light is converted into trapped infra red light and heat, causing the planet to warm up.
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