1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Tpy6a [65]
4 years ago
9

a 9.84 ounces ingot of unknown metal is heated from 73.2 degrees fahrenheit - 191.2 degrees fahrenheit this requires 3.912 calor

ies of energy calculate the specific heat of the metal
Chemistry
1 answer:
Gekata [30.6K]4 years ago
6 0

The SI unit of specific heat is J per gram per degree Celsius. Thus it follows that specific heat could be calculated in this way:

Specific Heat = Energy / (mass x change in temperature)

Thus,

Specific Heat = 3.912 cal / (9.84 oz x (191.2 ˚F – 73.2 ˚F))

Specific Heat = 3.369 x 10^-3 cal/oz-˚F

You might be interested in
Two chemicals a and b are combined to form a chemical
dedylja [7]
-dB/dt = kAB = k(2B)(B) = 2kB^2
-dB/B^2 = 2kdt
Integrating: 1/B - 1/(B_0) = 2kt
At t = 10, if 15 g of C have formed, this must have consumed 10 g A and 5 g B. The remaining mass of B is 45 g.
1/45 - 1/50 = 2(k)(10)
k = 1.11 x 10^-4
Then substituting this value of k with t = 40:
1/B - 1/50 = 2(1.11 x 10^-4)(40)
1/B - 1/50 = 0.008889
1/B = 0.028889
B = 34.62 g remaining
Therefore, 50 - 34.62 = 15.38 g of B have been consumed.
Doubling, 30.76 g of A have been consumed.
This means that 15.38 + 30.76 = 46.15 g of C have been formed.
5 0
3 years ago
Changing the number of _____ would change an atom into an atom of a different element
Kamila [148]
Electrons - each atom has its own unique #
8 0
3 years ago
Read 2 more answers
A chemist dissolves 581.1mg of pure perchloric acid in enough water to make up 150 ml of solution. Calculate the pH of the solut
algol [13]

<u>Answer:</u> The pH of the solution is 1.41

<u>Explanation:</u>

To calculate the molarity of solution, we use the equation:

\text{Molarity of the solution}=\frac{\text{Mass of solute}\times 1000}{\text{Molar mass of solute}\times \text{Volume of solution (in mL)}}

Given mass of perchloric acid = 581.1 mg = 0.5811 g   (Conversion factor:  1 g = 1000 mg)

Molar mass of perchloric acid = 100.5 g/mol

Volume of solution = 150 mL

Putting values in above equation, we get:

\text{Molarity of perchloric acid}=\frac{0.5811\times 1000}{100.5\times 150}\\\\\text{Molarity of perchloric acid}=0.0385M

1 mole of perchloric acid produces 1 mole of H^+ ions and 1 mole of ClO_4^- ions

To calculate the pH of the solution, we use the equation:

pH=-\log[H^+]

We are given:

[H^+]=0.0385M

Putting values in above equation, we get:

pH=-\log (0.0385)=1.41

Hence, the pH of the solution is 1.41

6 0
3 years ago
6. Which of the following element pairs would most likely form an ionic compound? (5pts)
harina [27]

Answer:

b

Explanation:

6 0
3 years ago
Two or more atoms joined together form a _____
aivan3 [116]

Answer:

It makes a molecule

Explanation:

7 0
3 years ago
Other questions:
  • Why is it preferable to allow cold water to enter at the bottom of a condenser and exit at the top?
    5·1 answer
  • What process occurs in a controlled fusion reaction
    5·1 answer
  • KF is a strong electrolyte, &amp; HF is a weak electrolyte. How are they different?
    9·1 answer
  • What is the total number of atoms in a molecule of CH3OH?<br> one<br> three<br> four<br> six
    5·2 answers
  • A 1.0 l buffer solution is 0.12 m in hno2 and 0.060 m in kno2. which action destroys the buffer? part a adding 0.060 mol of kno2
    8·1 answer
  • Based on the chemical equation, use the drop-down menu to choose the coefficients that will balance the chemical equation:
    8·2 answers
  • PLEASE HELP!!
    13·2 answers
  • At 25.0°C the Henry's Law constant for dinitrogen monoxide (N2O) gas in water is 0.025 M/atm.
    9·1 answer
  • When copper is combined with another element, ______, it makes bronze, the first man made metal alloy.
    13·1 answer
  • Pls help help help!<br>i give 20 points<br>pls​
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!