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
kari74 [83]
4 years ago
15

A 10 gram iron nail absorbed 125J of heat. What was the final temperature of the nail if the original temperature was 25°C?

Chemistry
1 answer:
valentina_108 [34]4 years ago
7 0

Answer:

52.1 degrees C

Explanation:

We need to use the equation: q = mCΔT, where m is the mass in grams, C is the specific heat capacity, and ΔT is the change in temperature.

Here, m = 10 g and q = 125 J. The heat capacity of iron is about 0.461 J/(g * C). And, our initial temperature is 25. So:

125 J = (10 g) * (0.461 J/(g * C)) * (T_f - 25)

Solving for T_f (final temp), we get: 52.1 degrees C

Hope this helps!

You might be interested in
After 4 half-lives 10 grams of uranium remains. How much uranium did you start with?
Free_Kalibri [48]

Answer:

i think 40 grams

Explanation:

4 0
3 years ago
How to clean a nose piercing with antibacterial soap?.
pychu [463]
Cleaning the nose piercing with a few simple steps will help prevent pre-existing conditions like infections, allergic reactions or skin damage. Performing regular maintenance will keep your piercing cleaner, more comfortable and easier to clean in the future.(Remember: If you have any problems I recommend visiting a doctor at your earliest convenience!) Antibacterial soap is great at reducing inflammation and clearing up infections. You should soak your nose in it regularly and use a clean cloth to gently wash away any particles that may have fallen into the septum.
5 0
2 years ago
If 7.4 moles of carbon dioxide is produced in this reaction, how many moles of oxygen gas would be needed?
Nimfa-mama [501]

Answer:

11.6 mol O₂

Explanation:

  • C₇H₁₆ + 11 O₂ → 7 CO₂ + 8 H₂O

In order to solve this problem we need to <u>convert moles of carbon dioxide (CO₂) into moles of oxygen gas (O₂)</u>. To do so we'll use a conversion factor containing the <em>stoichiometric coefficients</em> of the balanced reaction:

  • 7.4 mol CO₂ * \frac{11molO_2}{7molCO_2} = 11.6 mol O₂
4 0
3 years ago
Calculate the volume of oxygen required to burn 12.00 l of ethane gas, c2h6, to produce carbon dioxide and water, if the volumes
kirza4 [7]
The  volume of   oxygen required  to  burn  12.00 L  ethane is calculated  as  follows

find the moles  of C2H6  used

At  STP  1 mole  is  always =  22.4 L, what about  12.00 L

= ( 12.00L  x 1 moles)  22.4 L = 0.536  moles

write the   reacting equation

2C2H6+  7O2 = 4CO2  + 6H2O
by  use  of mole  ratio  between  C2H6 :O2   which is 2:7  the  moles  of O2 

= 0.536  x7/2=  1.876  moles

again  at  STP  1mole =  22.4 L  what  about 1.876 moles

=    22.4 L x 1.876  moles/ 1 mole =  42.02 L


8 0
4 years ago
Which of the following elements is most likely to form a +1 charge?<br><br>Cl<br>Mg<br>Na<br>Li
pogonyaev

Answer:

Na

Explanation:

because sodium has 1 electrons so it loses it to be stable and so have positive charge of 1

7 0
3 years ago
Read 2 more answers
Other questions:
  • A volleyball contains 1.36 g of nitrogen gas. How many moles of N2 gas are in the volleyball?
    5·1 answer
  • Consider the molecules HCl, HBr, HF, and HI. Which would you expect to have the highest boiling point and why
    5·1 answer
  • What is a chemical reaction? ​
    10·1 answer
  • Chlorine can form a maximum of bonds
    11·1 answer
  • Whats the atomic mass of an atom
    15·2 answers
  • If 5.9 × 10²⁵ molecules of CO₂ are produced in a combustion reaction, how many liters of CO₂ is produced? (The density of CO₂ is
    10·1 answer
  • Need a little help with science please
    6·2 answers
  • Someone help <br> What are the products in a chemical reaction?
    9·2 answers
  • Difference between desirable changes and undesirable changes​
    8·1 answer
  • What are the most abundant metal in the earths crust from 1 to 10​
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!