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A piece of tin weighing 85.251 g is placed into 41.1cm3 of ethyl alcohol (D=0.798) in a graduated cylinder and it sinks to the bottom . The alcohol rises to 52.8cm3A) what is the mass of tinB) what is the volume of the tinC) what is the density of tin
Calculate the concentration of the Na2S2O3 solution if 30.70 mL of a 0.2210 M I2 solution react exactly with a 100.0 mL sample of the Na2S2O3 solution.
Using the inverse square law of radiation, what Geiger counter reading would you get for a radioactive material when you are 3 feet from the source
calculate enthalpy change for the quantity of zinc reacted. Be sure to follow the significant figures convention in the answer you report.
determine the initial concentration - Constant rate is 3.20×10-4 M/s for a zero-order reaction. concentration has dropped to 9.00×10-2 M after 60.0 seconds
Calculate the molarity (M) of the following solutions. Express the answer using 2 sig figures.
The rate constant for a first-order reaction is 5.50 x 10-4 s-1 at 39oC and 2.32 x 10-3 s-1 at 56oC. What is the activation energy
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.
suppose that a cars starter draws 225A of current for 6.3 s to start the car. what mass of Pb is oxidized in the lead-acid battery to supply the electricity?(in grams)
Benzene has a boiling point of 80.1 degrees celcius and a molal boiling point elevation constant of 2.53 degrees celcius/m. Calculate the boiling point of a solution containing 15.0 g of the non-electrolyte C6H4Br2 in 125 ml of benzene (sp gravity..
The temperature of the ideal gas in the container shown is 300 K. The gas occupies a volume of 1.27 m3. What would be the volume of the gas if its temperature were decreased to 100 K? No blocks are added to or removed from the lid.
oxidation of gaseous CIF by F2 yields liquid CIF3. Use the following thermochemical equation to calculate delta H reaction for the production of CIF3
First ,2-chlorotoluene react with acetylchloride. then acylation product (an oil ) react with its corresponding carboxylic acid(aluminum(3) chloride)
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