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Treatment of 1.385 g of an unknown metal M with an excess of aqueous HCl evolved a gas that was found to have a volume of 382.6mL at 20.0 degrees Celsius and 755 mm Hg pressure. Heating there action mixture to evaporate the water and remaining HCL then gavea white crystalline compound, MCl. After dissolving the compound in25.0g of water, the melting point of the resulting solution was-3.53 degrees Celsius
The molar heat capacities of iron and gold are 25.19 J/(mol c) and 25.41 j(mol c). what is the final temp of the water and the pieces of metal
What is the difference between an ion-dipole force and dipole-dipole force? I have no idea what a dipole is.
One weighs 32.78 grams of NaOH and dissolves it in water (with stirring) to the mark in a 1500 mL volumetric flask. What is the molarity of this solution
Why is it possible to separate the product (6-ethoxycarbonyl-3,5-diphenyl-2-cyclohexenone) from sodium hydroxide using acetone?
the us consumed 18.8 million barrels mbbl of crude oil per day in 2009. the bp gulf oil spill totaled roughly 200
The elemental mass percent composition of malonic acid is 34.63% C, 3.87% H, and 61.50% O. Determine the empirical formula of malonic acid. Express your answer as a chemical formula.
At the endpoint of a titration of a weak acid HA (nicotinic acid) with NaOH (100 mL each, 0.100 M), the pH is 8.78. What is the apparent Ka of the acid
How many non-bonding valence electrons are there in a molecule of citric acid? please show how to calculate/count them up.
How many copper atoms and how many zinc atoms are in the penny provided. You will have to do some research to help with this one
The formulas for ethane, ethene and ethyne are C2H6, C2H4, and C2H2 respectively. Rank these compounds by the length of the carbon-carbon bond.
The heat of fusion of acetic acid is 11.5 kJ/mol. Its melting point is 16.6 C. The change in entropy for the melting of acetic acid in J(mol * K) is
What is the balanced equation of sodium borohydride and 4-tert-butylcyclohexanone? The reduction reaction has the product 4-tert-butylcyclohexanol which is a mixture of cis and trans isomers.
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