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
V125BC [204]
3 years ago
8

The specific heat of silver is 0.234 j/(g·c). calculate the amount of energy that is needed to raise the temperature of 175 g of

silver from 22.5°c to 40.0°c.
Chemistry
1 answer:
Elodia [21]3 years ago
3 0
Heat energy is supplied to materials and can cause an increase in temperature of the material. the formula is as follows
H = mcΔt
where H - heat energy 
m - mass of material 
c - specific heat 
Δt - change in temperature  - 40.0 °C - 22.5 °C = 17.5 °C
substituting the values 
H = 175 g x 0.234 Jg⁻¹°C⁻¹ x 17.5 °C
H = 716.6 J 
716.6 J is required 
You might be interested in
6.626 × 10⁻³⁴ × 7.08× 10¹⁴
PolarNik [594]

The answer is 4.69 x 10⁻¹⁹  I hope this helped!

3 0
3 years ago
The correct mathematical expression for finding the molar solubility (s) of calcium phosphate is
GalinKa [24]

Answer is: The molar solubility of calcium phosphate is 108s⁵ = Ksp.

<span> Balanced chemical reaction: Ca</span>₃(PO₄)₂(s) → 3Ca²⁺(aq) + 2PO₄³⁻(aq).<span>
[Ca²</span>⁺] = 3s(Ca₃(PO₄)₂) = 3s.<span>
[PO</span>₄³⁻] = 2s.<span>
Ksp = [Ca²</span>⁺]³ · [PO₄³⁻]².<span>
Ksp = (3s)³ · (2s)².
Ksp = 108s</span>⁵.

s = ⁵√(Ksp ÷ 108).

6 0
3 years ago
What is the molar mass of AgF. 51.9g/mol 198.8g/mol 126.87g/mol 99.7g/mol
lisov135 [29]
Just find Ag and F on periodic table, find g/mol for each one and add them together
3 0
3 years ago
5. Mr. Martin's Spanish class is 45 minutes long. If it starts at 3:30, what time does it end?
zubka84 [21]
It would be 4:15 . Just add 3:30 plus 45 too get the answer
5 0
3 years ago
Read 2 more answers
A 12.0% sucrose solution by mass has a density of 1.05 gem, what mass of sucrose is present in a 32.0-mL sample of this solution
natulia [17]

Answer:

Option C. 4.03 g

Explanation:

Firstly we analyse data.

12 % by mass, is a sort of concentration. It indicates that in 100 g of SOLUTION, we have 12 g of SOLUTE.

Density is the data that indicates grams of solution in volume of solution.

We need to determine, the volume of solution for the concentration

Density = mass / volume

1.05 g/mL = 100 g / volume

Volume =  100 g / 1.05 g/mL → 95.24 mL

Therefore our 12 g of solute are contained in 95.24 mL

Let's finish this by a rule of three.

95.24 mL contain 12 g of sucrose

Our sample of 32 mL may contain ( 32 . 12) / 95.24 = 4.03 g

7 0
3 years ago
Other questions:
  • 3. The density of mercury is 13.6 g/ml. Find the<br>volume of 150 g​
    15·1 answer
  • How many grams are in 6.78 x 10^24 atoms of He?
    10·2 answers
  • If 25.3 grams of mercury(II) oxide react to form 23.4 grams of mercury, how many grams of oxygen must simultaneously be formed?
    12·1 answer
  • How can you change the chemical equilibrium to benefit the company? What benefits will be realized?
    8·1 answer
  • Which of these chemical formulas represents both an element and a molecule?
    12·2 answers
  • +
    8·1 answer
  • What would the result be of adding one proton to an atom​
    15·1 answer
  • The following reaction shows sodium hydroxide reacting with sulfuric acid.
    5·1 answer
  • A chemist dilutes a 1.0 ml sample of 2.0 m kno3 by adding water to it. if the concentration of the solution that is obtained is
    11·1 answer
  • How does the arrangement of atoms or molecules in a gas differ from the arrangements in liquids and solids?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!