Ask Question
26 February, 20:52

A) It takes 47.0J to raise the temperature of an 10.7g piece of unknown metal from 13.0∘C to 25.0∘C. What is the specific heat for the metal?

b) The molar heat capacity of silver is 25.35 J/mol⋅∘C. How much energy would it take to raise the temperature of 10.7g of silver by 15.2∘C?

c) What is the specific heat of silver?

+4
Answers (1)
  1. 27 February, 00:27
    0
    The heat Q can be evaluated as:

    Q=mcΔT

    where:

    m is the mass

    c specific heat

    ΔT change in temperature.

    So:

    a)

    47=10.7c (25-13)

    c=0.39 J/g°C

    Using the same idea you get (I transformed g into moles using the molar mass of silver from the table of elements):

    b) Q = (10.7/107.9) * 25.35*15.2=38.21 J

    where: Molar mass of Ag = 107.8682 g/mol

    c) 38.21=10.7c15.2

    c=specific heat of silver=0.235 J/g°C
Know the Answer?
Not Sure About the Answer?
Get an answer to your question ✅ “A) It takes 47.0J to raise the temperature of an 10.7g piece of unknown metal from 13.0∘C to 25.0∘C. What is the specific heat for the ...” in 📙 Chemistry if there is no answer or all answers are wrong, use a search bar and try to find the answer among similar questions.
Search for Other Answers