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
Yanka [14]
3 years ago
10

How many J of energy would you need in order to heat 252 grams of

Chemistry
1 answer:
Helen [10]3 years ago
8 0

Answer:

16128 J

Explanation:

Data:

  • m (mass) = 252 g
  • T<em>i</em> (Temperature initial) = 305 K
  • T<em>f</em> (Temperature final) = 445 K
  • c (specific heat) 0.450 J/g*K

Wanted:

  • q (heat) = ? J

Solution:

  • q = mCΔT
  • q = (256 g)(0.450 J/g*K) (445 K - 305 K)
  • q = (256 g)(0.450 J/g*K) (140 K)
  • q = 16128 J

<u>Note:</u>

The <em>answer</em> is not in a correct significant figure. So, make sure you have a correct significant figure.

You might be interested in
How does the amount of daylight affect the number of eggs laid by a chicken?
IrinaVladis [17]
Chickens lay eggs depending on the time of year. The number of daylight hours affect when they start laying and stop laying. If you artificially provide <span>light, the chickens will start laying. </span>
8 0
4 years ago
The most common compound on earht is:
OlgaM077 [116]
The most common compound on earth is cellulose because it has enough energy to be the next source for biofuels. 
6 0
3 years ago
Democritus contributed to our understanding of the atom in which of the following ways?
Marianna [84]
I believe the answer is 3 - He hypothesized that all substances can be broken down into a smallest part called the atom. 
7 0
3 years ago
Read 2 more answers
Changing the position of the increases or decreases your effort
MA_775_DIABLO [31]
Changing what position?
3 0
3 years ago
How many milliliters of 0.260 m na2s are needed to react with 35.00 ml of 0.315 m agno3?
allochka39001 [22]

The complete balanced chemical reaction is:

2 AgNO3 + Na2S --> 2 NaNO3 + Ag2S

 

First let us calculate the number of moles of AgNO3.

moles AgNO3 = 0.315 M * 0.035 L

moles AgNO3 = 0.011025 mol

 

From the reaction, 1 mole of Na2S is needed for every 2 moles of AgNO3 hence:

moles Na2S required = 0.011025 mol AgNO3 * (1 mol Na2S / 2 mol AgNO3)

moles Na2S required = 5.5125 x 10^-3 mol

 

Therefore volume required is:

volume Na2S = 5.5125 x 10^-3 mol / 0.260 M

<span>volume Na2S = 0.0212 L = 21.2 mL</span>

6 0
4 years ago
Other questions:
  • What happens to the conductivity of water when an acid is dissolved in it for bases?
    6·1 answer
  • Where does the year go in a bar graph
    8·1 answer
  • “Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules.” which state of
    5·2 answers
  • Provide an example of a substance with non-polar bonds
    5·1 answer
  • Hard water often contains dissolved Mg2+and Ca2+ions. Water softeners often use sodium carbonate to soften the water. Sodium car
    12·1 answer
  • Enter the chemical formula for water. formula:
    15·2 answers
  • In a single replacement reaction between 2.57 moles Aluminum and 3.59 moles of Hydrochloric acid, how many moles of Hydrogen can
    5·1 answer
  • What is the volume, in liters, of a 0.2 M solution containing 8.5 grams of AgNO3?
    5·1 answer
  • Answer the question given in the photo below
    6·1 answer
  • Look at the following elements and tell what information you can deduce from the given data.
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!