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QveST [7]
3 years ago
15

What is the specific heat value of brass?

Chemistry
2 answers:
Bogdan [553]3 years ago
8 0

Answer:

Nhiệt dung riêng của đồng là  

380

J

/

k

g

.

K

Explanation:

irina [24]3 years ago
3 0
0.380 0.092
T4: Specific Heats and Molar Heat Capacities
Substance cp in J/g K cp in cal/g K or Btu/lb F
Aluminum 0.900 0.215
Bismuth 0.123 0.0294
Copper 0.386 0.0923
Brass 0.380 0.092
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25.0 ml of a 0.100 m solution of nh3 is titrated with 0.250m hcl. after 10.0 ml of the hcl has been added, the resultant solutio
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Then the resultant solution is basic.

<h3>What is basic solution?</h3>

An aqueous solution that has more OH-ions than H+ions is referred to be a basic solution. It is an aqueous solution with a pH higher than 7, in other words. Ions are present in basic solutions, which also conduct electricity, color blue on red litmus paper and are slick to the touch.

The scale ranges from zero (the most acidic) to fourteen (the most basic). Pure water has a pH value of 7, as can be seen from the pH scale above. Since it is neither acidic nor basic, this value is thought to be neutral.

Potassium hydroxide (KOH), Sodium hydroxide (NaOH), Caesium hydroxide (CsOH), Strontium hydroxide (Sr(OH)2), and Lithium hydroxide are some typical strong Arrhenius bases.

To learn more about basic solution from the given link:

brainly.com/question/3595168

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3 0
2 years ago
It takes 45.0 J to raise the temperature of an 8.10 g piece of unknown metal from 13.0∘C to 24.3 ∘C. What is the specific heat f
hodyreva [135]

Answer:

0.492 J/g °C

General Formulas and Concepts:

<u>Thermodynamics</u>

Specific Heat Formula: q = mcΔT

  • <em>q</em> is heat (in J0
  • <em>m</em> is mass (in g)
  • <em>c</em> is specific heat (in J/g °C)
  • <em>ΔT</em> is change in temperature (in °C)

Explanation:

<u>Step 1: Define</u>

<em>Identify variables</em>

[Given] <em>q</em> = 45.0 J

[Given] <em>m</em> = 8.10 g

[Given] <em>ΔT</em> = 24.3 °C - 13.0 °C = 11.3 °C

[Solve] <em>c</em>

<em />

<u>Step 2: Solve for </u><em><u>c</u></em>

  1. Substitute in variables [Specific Heat Formula]:                                             45.0 J = (8.10 g)c(11.3 °C)
  2. Multiply:                                                                                                             45.0 J = (91.53 g °C)c
  3. Isolate <em>c</em>:                                                                                                            0.491642 J/g °C = c
  4. Rewrite:                                                                                                             c = 0.491642 J/g °C

<u>Step 3: Check</u>

<em>Follow sig fig rules and round. We are given 3 sig figs.</em>

0.491642 J/g °C ≈ 0.492 J/g °C

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D. An endangered species is in danger of becoming extinct in the near future. A threatened species could become endangered in the near future.

Explanation:

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