What is the equation relating the sum of the heats

Assignment Help Chemistry
Reference no: EM13687243

Problem- A 4.82g sample of iron is heated to 84.3 degrees Celsius. A 1.25g sample of gold is heated to 95.1 degrees Celsius. Both of these metals are added to 9.47g of cold water that is initially at 14.5 degrees Celsius.

1) From the first law of thermodynamics, what is the equation relating the sum of the heats of the two components?

2) Algebraically substitute in the specific heat capacities for the metals and water, the masses of the samples, and the temperature change.

3) Solve the algebraic problem in (b) for Tf, the final temperature of the water.

4) Determine the final temperature of the metals in the water. Hint: its the same for all three components.

Solve the above questions

Reference no: EM13687243

Questions Cloud

Explain why supply is more elastic in the long run : Explain why supply is more elastic in the long run and explain what causes economies of scale. Can economies of scale and diminishing marginal returns apply to the same firm? Explain.
Define what is the empirical formula : Suppose you have a mixed hexagonal close-packed arrangement where the unit cell has all corner and face atoms of type A and all interior atoms of typeB. What is the empirical formula
What tipe of crystals are formed by the solid elements : What tipe of crystals are formed by the following solid elements and compounds: Si, SiH4, SiO2, and Na2O. In each case, state the type of forces among the particles that make up the lattice. (hint. silico dioxide structure)
Explain heat to rise the temperature : Problem- If the temperature of a sample of water requires 3.2 kJ of heat to rise the temperature from 26.1 C to 35.2 C, how much water was in the sample?
What is the equation relating the sum of the heats : Problem- A 4.82g sample of iron is heated to 84.3 degrees Celsius. A 1.25g sample of gold is heated to 95.1 degrees Celsius. Both of these metals are added to 9.47g of cold water that is initially at 14.5 degrees Celsius.
What is the diamonds-water paradox : What impact would an increase in the monthly premium have on their consumer surplus? What would be the impact of a reduction in co-payments?
What do the charts suggest about the process : Construct 3 sigma control charts and the quality control department collected observation for another six cycles. Plot the corresponding values on control charts.
What is the major organic product : Problem- Part 1) What is the major organic product when (R)-3-methyl-1, 2-epoxybutane reacts with butylmagnesium bromide?
What is the major organic product : Problem- Part 1) What is the major organic product when (R)-3-methyl-1, 2-epoxybutane reacts with butylmagnesium bromide?

Reviews

Write a Review

Chemistry Questions & Answers

  Give an example of a metabolic pathway of a drug or

give an example of a metabolic pathway of a drug or endogenous substance for each of the following reaction types and

  Compute the activation energy for the souring of milk

Raw milk sours in 4.0 hours at 28 degrees celcius but takes 48 hours to sour in a refrigerator at 5 degrees celcius. Calculate the activation energy for the souring of milk?

  Explain what is the change in entropy of the system

Presuming merely translational degrees of freedom or freedom of motion, Explain what is the change in entropy (S) of the system caused by opening the stopper on this container

  State what is the root mean square speed of cl2

average kinetic energy of 6410 J/mol under certain conditions, what is the root mean square speed of Cl2(g) molecules under the same conditions?

  Define the reaction of 2-methyl-2-butanol with hcl

Consider the by-products that might be formed by E1 and/or E2 processes in the reaction of 2-methyl-2-butanol with HCL. Provide structures for these products.

  What is the purpose of using acetic anhydride in an

what is the purpose of using acetic anhydride in an experiment reacting with salicylic acid to produce acetylsalicylic

  What is the ph

What is the pH in which 10.0mL of 0.010 mol/L Sr(OH)2 are added to 10.0mL of 0.010mol/L HCl?

  How long these reserves will last if rate of use continues

the world's estimated annual gas reserves in 2006 were 6124 trillion ft3 .The world rate of annual use was 105.5 trillion feet3. How long these reserves will last if the rate of use continues?

  What is the atomic mass of x

If 1.50 g of X reacts with 3.54 g of M to produce 4.22 g of a compound with the formula M4X3, and the atomic mass of M is 48.5 amu.

  State mass is not technically the same thing as weight

The mass of solute per 100 mL of solution is abbreviated as (m/v). Mass is not technically the same thing as weight, but the abbreviation (w/v) is also common

  What is the freezing point of an aqueous glucose

What is the Freezing point of an aqueous glucose solution that has 25.0g of glucose, C6H12O6, per 100.06 H2O (Kf=1.86)

  Calculate the diameter of a rhodium atom

Rhodium has a density of 12.45 g/cm3. This metal crystallizes in a face-centered cubic unit cell. Calculate the diameter of a rhodium atom?

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