What is the temperature change

Assignment Help Chemistry
Reference no: EM13126426

If 95 0C of heat are added to a pure gold coin with a mass of 20 gm, what is its temperature change? Specific heat capacity of gold is 0.128 .

Reference no: EM13126426

Questions Cloud

Find probability that new cup will overflow : What is the probability that a new cup will overflow when filled by the automatic dispenser? At what value should the mean amount dispensed by the machine be set to satisfy this wish?
Underlying rationale for alimony rules : What is the underlying rationale for Alimony Rules:
Information about commutative ring proof : Let R be a commutative ring with 1. Prove that if (a,b)=1 and a divides bc, then a divides c. More generally, show that if a divides bc with nonzero a,b then a/(a,b) divides c.
Explain study of a first-order reaction : Study of a first-order reaction, In the study of a first-order reaction, A--->B, it is found that A/Ao=0.125 after one hour. The system initially consisted of 0.20 mole of a gaseous A at 25 degrees C and 1 atm
What is the temperature change : If 95 0C of heat are added to a pure gold coin with a mass of 20 gm, what is its temperature change? Specific heat capacity of gold is 0.128 .
How the uncertainty is related to earnings quality : In our real life, the value of assets cannot be estimated perfectly because we cannot be certain for the future cash flows that the asset generates, and also we cannot be certain for the discount rate.
Derive an expression for the compression factor : Derive an expression for the compression factor of a gas that obeys the equation of state P(V - nb) = nRT
Develop a smoking cessation program at workplace : What do the results suggest? How might you use this data from this sample size to develop a smoking cessation program at your workplace?
Journal entries to record the write-off of receivables : Prepare journal entries to record the write-off of receivables, the collection of $1,200 for previously written off receivables, and the year-end adjusting entry for bad debt expense.

Reviews

Write a Review

Chemistry Questions & Answers

  Determine the dh solution

Determine the ΔH solution for this compound If the heat of solvation for this compound = -30.8 kJ/mol , crystal lattice energy = -62.2 kJ/mol.

  Reaction between ferric chloride and lime slurry

Write the reaction between ferric chloride and lime slurry that results in precipitation of Fe(OH)3. For a dosage of 40 mg/l FeCl3: What is the required stoichiometric addition of lime expressed as CaO?

  Estimate the activation energy for reverse reaction

The activation energy for the reaction NO 2 (g)+CO 2 (g)?NO(g)+CO(g) is E a = 100kJ/mol and the change in enthalpy for the reaction is ΔH = -200kJ/mol. What is the activation energy for the reverse reaction?

  What are the equilibrium concentrations of no, n2

2000°C the equilibrium constant for the reaction is Kc = 2.4 103.  2 NO(g) N2(g) + O2(g)  If the initial concentration of NO is 0.150 M, what are the equilibrium concentrations of NO, N2, and O2.

  Calculate the mass of sodium bicarbonate

Calculate the mass of NaHCO3 that was used up in the reaction for each beaker. The molecular weight of NaHCO3 is 84.007 g/mole.

  Determine the moles of acid neutralized

Al(OH)3 + 3HCl ---> AlCl3 + 3H2O Determine the moles of acid neutralized if a tablet contains 0.200 mol Al(OH)3

  What is the molar concentration of the ammonia

If 17.2 mL of 0.800 M HCl solution are needed to neutralize 5.00  mL of a household ammonia solution, what is the molar concentration of the ammonia.

  Calculate kc for the reaction

Consider the following equilibrium process at 686°C: CO2(g) + H2(g) ? CO(g) + H2O(g) The equilibrium concentrations of the reacting species.

  Determine the molar mass of the substance

Determine the molar mass of the substance if 120.0 grams of a pure sample contained 24.0 mol of the substance. Express your answer in g/mol.?

  What is the molecular formula of the compound

A compound is found to be 30.45% N and 69.55 % O by mass. If 1.63 g of this compound occupy 389 mL at 0.00°C and 775 mm Hg, what is the molecular formula of the compound.

  Determine the boiling point of an aqueous solution

Determine the boiling point of an aqueous solution that is 2.30 m ethylene glycol (C2H6O2); Kb for water is 0.52 degrees celsius/m.

  From this data determine the number of a, ß and ?

You have successfully purified a protein to homogeneity. From gel permeation chromatography studies, you determine that the protein has a molecular weight for 235,000 daltons.

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