Explain the final temperature of the water and the coins

Assignment Help Chemistry
Reference no: EM13208962

A coin dealer heated gold (specific heat = 0.129 J. g -1 . C -1) coins to 100.0 degress C in boling water and then dropped the hot coins into 43.0 g of water at a temperature of 15.5 C in a coffee cup calorimeter. The final temperature of the water and the coins was 21.5 C.

Reference no: EM13208962

Questions Cloud

Define methyl iodide and isopropyl bromide : Assume that you need to prepare 4-methyl-2-pentyne and discover that the only alkynes on hand are acetylene and propyne. You also have available methyl iodide, isopropyl bromide,
Depict fisher projections : Draw Fisher projections for the following: (a) (R)-2-chloropentane; (b) (2R,3S)-2,3-dichlorobutane; (c) (S)-2-Bromo-2-pentanol;
Depict a balanced equations for the formation : Write a balanced equations for the formation of the following compounds from their elements
Compute combustion eneergies : the calorimeter itself absorbs a negligible amount of heat, calculate combustion eneergies (change of energies) for benzene in both kj/g and kj/mol.
Explain the final temperature of the water and the coins : degress C in boling water and then dropped the hot coins into 43.0 g of water at a temperature of 15.5 C in a coffee cup calorimeter. The final temperature of the water and the coins was 21.5 C.
Explain the molar mass of the polymer : The osmotic pressure of a aqueous solution of a given polymer with mass concentration 0.300 g/mL is 10.0 torr at 298 K. Estimate the molar mass of the polymer.
Explain the h2 pressure above the water : At 20 degrees C, 0.164 mg of H2 dissolves in 100.0 g of water when the H2 pressure above the water is 1.000 atm. Find the Henry's law constant for H2 is water at 20 degrees C.
Explain what is the partition coefficient for the solute : stationary phase thickness on the inner wall of 0.76 ?m passes unretained solute through in 65 s. A particular solute has a retention time of 403 s. What is the partition coefficient for this solute?
Explain benzene formation is insignificant in bulk : Benzene formation is insignificant in bulk metathesis polymerization. Considering the mechanism of metathesis polyerizationm, suggest a reason for the different behavior

Reviews

Write a Review

Chemistry Questions & Answers

  State what is the van''t hoff factor for hx in water

What is the van't Hoff factor for HX in water? b) What is the molality of X1- ions in the solution?

  What is the new pressure in the tire

A bicycle tire is filled with air to a pressure of 611 kPa at a temperature of 19 degrees C. Riding the bike on a hot day increases the temperature of the tire to 58 degrees C.

  Explain what is the concentration of the resulting solution

If one pipet volume of each of the following pipets (2, 5, 10 mL) of a 2.56x10-1 M sample are added to a 25 mL volumetric flask and it is filled to the line with water and well mixed, what is the concentration of the resulting solution?

  State the molar concentration of cadmium ion

cadmium borate solution is mixed with 147.3 mL of a 0.606 M cadmium borate solution. Assuming volumes are additive, what is the molar concentration of cadmium ion in the resulting solution?

  What is the specific gravity of the substance

What is the density of a substance if a 2.50mL sample has a mass of 0.880g at room temperature? ( show calculations) What is the specific gravity of the substance?

  What is the temperature of the water when equilibrium

What is the final temperature of the water when equilibrium is reached? (Assume a density of 0.998 (g/mL) for water.)

  What will be the final temperature of the water

A 100.0-g sample of water at 27.0oC is poured into a 75.0-g sample of water at 89.0oC. What will be the final temperature of the water?

  What is the molarity of the solution

If 495g NaOH is dissolved in a final volume of 20.0 L, what is the molarity of the solution.

  What will the volume be at the same temperature

a 27.7 ml sample of CO2 was collected over water at 25.0 degrees celcius and 1.00 atm.(the vapor pressure of water at 25.0 degrees celcius is 23.8 torr) What will the volume be at the same temperature and pressure after removing the water vapor?

  Calculate the mole fraction for the hydrogen chloride

27.5 grams of hydrogen chloride is dissolved into 70.0 ml of water. Calculate the mole fraction for the hydrogen chloride that is dissolved in the water.

  Compute the maximum yield of substance x

Calculate the maximum yield of substance X that could be obtained if 10g of X were recrystallized from 50 mL of the solvent at the above conditions.

  Explain type of intermolecular attractive force

What is the most important type of intermolecular attractive force that operate in each

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd