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Gaseous [Br2] decomposes at 573 K Br2(g) <===> 2 Br(g) In a 1.26-L flask 0.086 mol of Br2 are placed and heated to 573 K. Measurements determine that Br2 is 3.7 % dissociated at this temperature. Explain what is the value of Kc for this reaction
Calculate the molarity of a solution made by adding 44.4 mL of concentrated ammonia (28% by mass, density 0.880 g/mL) to some water to some water in a volumetric flask
If one added 0.01 M of CaCl2 to this solution, how many moles of Ca(OH)2 will now dissolve in 1.0 L of water containing this concentration of CaCl2
If 555 g of NaOH is dissolved to a final total volume of 40.0 L, what is the molarity of the solution?
given the mass of chlorine as 26.0g and mass of aluminium as 31.0g. if you had excess chlorine how many moles of of
How many milliliters of an aqueous solution of 0.202 M potassium chloride is needed to obtain 11.4 grams of the salt
A piece of copper with a mass of 218 grams has a heat capacity of 83.9 J/degrees C. What is the specific heat of copper.
Imagine that you have a 5.00L gas tank and a 4.50L gas tank. You need to fill one tank with oxygen and the other with acetylene to use in conjunction with your welding torch.
You have 250.0 ml . graduated cylinder containing some water(61.0 ml). Theb you drop three marbles with a total mass of 95.2 g into the water (final volume is 95.5 ml). What is the average density of a marble
What is the difference between a hypothesis and a theory? a hypothesis is a proposal that has been tested extensively, whereas a theory is an initialy stated proposal a hypothesis is a conclusion made after a theory was tested words hypothesis
water can be separated into hydrogen and oxygen gases by using electricity to break the bonds in a process called
a 249-gram sample of water is heated from 2 degrees c to 85degrees c. calculate the amount of heat absorbed in kj by
Suppose Joule encountered the waterfall at Niagara Falls. Calculate the height if the temperature difference between the top and bottom of the waterfall is 0.20° F.
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