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Design a procedure to distinguish between the following four substances
1. CH3OH (l)
2. KI (s)
3. C12H22O11 (s)
4. C6H6 (l)
First find solubility then conductivity test.
A beaker with 1.50×102mL of an acetic acid buffer with a pH of 5.000 is sitting on a benchtop. The total molarity of acid and conjugate base in this buffer is 0.100 M. A student adds 7.20mL of a 0.330\it M \rm HCl solution to the beaker.
a metal objet with a mass of 19 g is heated to 96 degree celcieus then tranfered to a clorimeter containing 75 g of
A 3.00L container is rated to hold gas at a pressure no greater than 100atm. Assuming the gas law behaves ideally, what is the maximum number of moles a gas that this vessel can hold at 27 degrees C
Write the Lewis structure" for the following compounds. Here I have attached 3 compounds. Please make sure it is correct Thank you.
What is the law of conservation of energy? Give a specific example. Discuss this in terms of a chemical reaction.
how much heat is required to convert 27.0 grams of ethanol at 28 degrees celcius to the vapor phase at 78 degrees
Find deltaH for the combustion of ethanol (C2H6O) to carbon dioxide and liquid water from the following data. The heat capacity of the bomb calorimeter
Calculate the mass of Li formed by electrolysis of molten LiCl by a current of 8.0×104 A flowing for a period of 20 h
In the following problem you must: 1) Determine the correct formula for each reactant and product. 2) Determine the correctly balanced chemical equation.
A volume of 80.0 ml of H2O is initially at room temperature (22.0 C). A chilled steel rod at 2.00 C is placed in the water. If the final temperature of the system is 21.1 C , what is the mass of the steel bar?
If the metal absorbs 848 J of heat as its temperature changes from 20.09 to 35.71. Calculate the thickness of the metal foil in mm
The standard enthalpies of formation of ions in aqueous solutions are acquired by arbitrarily assigning a value of zero to H+ ions that is, Hf [H+ (aq)] = 0. For the subsequent reaction- HCl (g) --H20---> H+ (aq) + Cl- (aq) Hf = -74.9 kJ/mol
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