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
k0ka [10]
2 years ago
5

A 110.-g sample of copper (specific heat capacity 0.20 J/C g) is heated to 82.4C and then placed in a container of water at 22.3

C. The final temperature of the water and copper is 24.9C. What is the mass of the water in the container, assuming that all the heat lost by the copper is gained by the water.
Chemistry
1 answer:
castortr0y [4]2 years ago
5 0

Answer:

The answer to the question is

The mass of the water in the container, assuming that all the heat lost by the copper is gained by the water is 116.23 grams

Explanation:

To solve this we list out the variables thus,

mass of copper = 110g

specific heat capacity of copper = 0.20 j/C g

Initial temperature of  copper = 82.4 C

Final temperature of copper and water = 24.9 C

therefore

From the formula for sensible heat, ΔH = m×c×ΔT

we have, where

H = senced heat,

m = mass,

ΔT = temperature change

110 × 0.20 × (82.4 - 24.9) = mw × 4.186 × (24.9 - 22.3)

1265 J = mw ×10.8836 or mw = 116.23 g

Therefpre the mass of water is 116.23 g

You might be interested in
A chemical reaction in which two or more elements switch places is called?
Nina [5.8K]

Answer:

neutralization

Explanation:

8 0
3 years ago
Give the reason for the following; 1. Iodimetric titrations are usually performed in neutral or mildly alkaline (pH 8) to weakly
Agata [3.3K]

Answer:

Explanation:

blach bal

5 0
3 years ago
how many H+ ions are in a solution with a pH of 2 and how many H+ ions are in a solution with a pH of 6?
LiRa [457]

Answer:

i) pH = 2

pH = -log(H+)

:- (H+) = 10^(-2)

:- (H+) = 0.01 M

ii) pH = 6

pH = -log(H+)

:- (H+) = 10^(-6)

:- (H+) = 0.000001 M

Explanation:

By definition: pH = -log(H+).

Given your pH, solve for the H+ using the the following log rule:

if a = (+/-) log (b) then

b = 10^((+/-) a).

Also remember unit of concentration is molar (M)

3 0
3 years ago
How many grams of water can be produce from the complete reaction of excess nitric acid and 33.2 mL of 0.245 M lithium hydroxide
Mariulka [41]

Mass of water produced : 0.146 g

<h3>Further explanation</h3>

Given

33.2 mL of 0.245 M lithium hydroxide

Required

mass of water

Solution

Reaction

HNO₃ (aq) + LiOH (aq) → H₂O (l) + LiNO₃ (aq)

mol LiOH :

= M x V

= 0.245 x 33.2 ml

= 8.134 mmol

From the equation, the mol ratio of HNO₃ : H₂O = 1 : 1, so mol H₂O = 8.134 mmol

mass H₂O :

= mol x MW

= 8.134 x 10⁻³ mol x 18 g/mol

= 0.146 g

3 0
2 years ago
How many hydrogen bonds are between cytosine and guanine
Dahasolnce [82]

Answer:

3

Explanation:

5 0
2 years ago
Read 2 more answers
Other questions:
  • 1. Concentrated HCl is 11.7M. What is the
    7·1 answer
  • Which is an example of plasmas in nature? solar cells plasma balls auroras clouds
    9·2 answers
  • You play a chess game 20 games total, you win only 2 out of the total. what is your ratio of games lost to games won
    10·2 answers
  • If you took an empty balloon, weight it on a scale then filled the balloon up with air and weighed it again would you expect the
    15·1 answer
  • _____________ is the energy stored because of its position or shape.
    14·1 answer
  • How do gut bacteria help people?(1 point)
    14·2 answers
  • If a gas is cooled from 315K to 231K and the volume is kept constant, what would the final pressure be if the original pressure
    14·1 answer
  • .I need help PRONTO.
    6·2 answers
  • The compound Mg(OH)2 is incorrectly named magnesium dihydroxide.<br> Explain the errors)
    8·1 answer
  • Hydrogen peroxide (H​2O​ ​2​) is unstable under certain conditions and decomposes as follows:
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!