Explain the surrounding water in the calorimeter

Assignment Help Chemistry
Reference no: EM13291109

In a calorimetry experiment, it was determined that a 92.0 gram piece of copper metal released 1860 J of heat to the surrounding water in the calorimeter (qcopper = ?1860 J). If the final temperature of the copper metal-water mixture was 25.00°C, what was the initial temperature of the copper metal? The specific heat of copper is 0.377 J/(g°C).

a)Tinitial = 28.6°C

b)Tinitial = ?28.6°C

c)Tinitial = 78.6°C

d)Tinitial = 92.6°C

e)Tinitial = 53.6°C

Reference no: EM13291109

Questions Cloud

Find the collision diameter : For alpha particles of energy 7.68 MeV scattered from a platinum foil two microns thick, find the collision diameter
Explain what is the molar concentration of solution : A solution of H2SO4(aq) with a molal concentration of 3.22 m has a density of 1.183 g/mL. What is the molar concentration of this solution?
Which form of market efficiency is violated : If someone were able to earn greater than the average returns for the market on a consistent basis, which form of market efficiency is violated?
Determine how many address pins does the dram have : A 1GB DRAM uses 4-bit data and has equal-length row and column addresses. How many address pins does the DRAM have?
Explain the surrounding water in the calorimeter : In a calorimetry experiment, it was determined that a 92.0 gram piece of copper metal released 1860 J of heat to the surrounding water in the calorimeter (qcopper = ?1860 J).
Determine the power triangle for each of the impedances : A circuit consists of two impedances, Z1=20/_30 ,Z2=14.14/_-45 , in parallel, supplied by a sourcevoltage V=100/_60. Determine the power triangle for each of the impedances and for the source.
Calculate the frictional force acting on the block : A 3.00-kg block starts from rest at the top of a 33.0° incline and slides 2.00 m down the incline in 1.75 s. Find the frictional force acting on the block
Explain what is the heat change of water : A 10.0 gram piece of metal is placed in an insulated calorimeter containing 250.0 g of water initially at 20.0°C. If the final temperature of the mixture is 25.0°C, what is the heat change of water
How should the company respond to such criticisms : Some critics have claimed that by outsourcing so much work, Boeing has been exporting American jobs overseas. Is this criticism fair? How should the company respond to such criticisms?

Reviews

Write a Review

Chemistry Questions & Answers

  Explain the relative sweetness of sucralose

The relative sweetness of sucralose is 60000. The relative sweetness of sugar is 100. How many grams of sucralose would you need for a solution that has the same sweetness as one made with 2.00g of sugar

  State the hybridization for a molecule with a central atom

What would be the hybridization for a molecule with a central atom that is bonded to 5 peripheral atoms and that has 3 nonbonding valence

  Which element requires the least amount of energy

Which element requires the least amount of energy to remove the most loosely held electron from a gaseous atom in the ground state?

  State what is the concentration of an ammonium chloride

What is the concentration of an ammonium chloride solution prepared by using 0.5L of water to dissolve the product of the reaction of 1.25 L of ammonia gas at 22 degrees C

  What volume would it occupy at 0 degrees celsisus

A chemist prepares a sample of hydrogen bromide and finds that it occupies 258 mL at 60 degrees celsisus and 476 Torr. What volume would it occupy at 0 degrees celsisus at the same pressure? Answer in units of mL to 5 decimal places.

  Explain the density of the balance weights

A sample of solid having a density of 3.43 g/cm3 had an apparent mass of 13.9264. The density of the balance weights is 8.00 g/cm3. Calculate the true mass of the object.

  Explain how many moles of water are formed

You add 10.0 mls of 0.100 M H2SO4(aq) to 10.0 mls of 0.100 M NaOH(aq). How many moles of water are formed. Is there a limiting reagent. Select one: a. 0.00200 moles b. 0.00100 moles c. 0.200 moles d. 0.100 moles

  What is kp for the reaction at temperature

What is Kp for the reaction at this temperature? B. For the reaction N2(g)+ 3H2(g) 2NH3(g) Kp = 2.20×10?3 at 268 C . What is K for the reaction at this temperature?

  How many protons are required

How many protons are required to heat 200mL of coffee from 22 degrees Celsius and 64 degrees Celsius

  What is the concentration of cu2+ in the sample

An unknown Cu2+ sample gave an absorbance of 0.262 in an atomic absorption analysis. Then 1.00 ml of solution containing 100.0 ppm Cu2+ was mixed with 95.0 ml of the unknown, and mixture was diluted to 100.0 ml in a volumetric flask.

  Describing adverse effects caused by exposure to radiation

I need help in describing the adverse effects caused by exposure to radiation. Include some specific exposure levels associated with these significant health effects.

  Define the average bond enthalpies

Given the average bond enthalpies listed below, calculate the delta H for the reaction: N2 + 3H2 --> 2NH3

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