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4 years ago

What has the higher specific heat, a metal spoon or a wooden spoon? How can you tell?

Chemistry

1 answer:

lidiya [134]4 years ago

8 0

Answer:

metal spoon

Explanation:

Metals are good conductors of heat and electricity and they have high boiling and melting points

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______ reactions generate thermal energy in a nuclear power plant as water is changed into steam

Jet001 [13]

Fission reactions generate thermal energy

8 0

3 years ago

Read 2 more answers

For the separation of components of a mixture, we are following different methods. What is the condition in which the process of

soldier1979 [14.2K]

Answer:

The mixture 1/ must be homogeneous where there is one or more dissolved salts; 2/ should only contain one liquid component.

Explanation:

This method drives off the liquid components from the solid components. The process typically involves heating the mixture until no more liquid remains. Prior to using this method, the mixture should only contain one liquid component, unless it is not important to isolate the liquid components. This is because all liquid components will evaporate over time. This method is suitable to separate a soluble solid from a liquid.

Note : In many parts of the world, table salt is obtained from the evaporation of sea water. The heat for the process comes from the sun.

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Hope this answer can help you. Have a nice day!

4 0

3 years ago

How should the ph of a 0.1 m solution of nac2h3o2 compare with that of a 0.1 m solution of kc2h3o2?

Semenov [28]

We have that for the Question it can be said that the NaOH combines with CH_3COOH to produce CH_3COONa (Salt)

From the question we are told

how should the ph of a 0.1 m solution of nac2h3o2 compare with that of a 0.1 m solution of kc2h3o2?

Generally

with the ph of a 0.1 m solution of nac2h3o2 compared with that of a 0.1 m solution of kc2h3o2 ,we see that the salt produce is a weak acid and strong akali salt

We see that the salt produced in water gives a base from the derived weak acid

The salt produce is CH_3COONa

Therefore

the NaOH combines with CH_3COOH to produce CH_3COONa (Salt)

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brainly.com/question/17756498

7 0

3 years ago

"Calculate the pH during the titration of 30.00 mL of 0.1000 M C3H7COOH(aq) with 0.1000 M LiOH(aq) after 29.9 mL of the base hav

Ivanshal [37]

Answer:

pH = 7.29

Explanation:

Ka of butanoic acid is 1.54x10⁻⁵

To obtain the pH of the solution you must use H-H equation for butanoic acid:

pH = pKa + log₁₀ [C₃H₇COO⁻] / [C₃H₇COOH]

Where pKa is defined as -log Ka = 4.81

Now, you need to find [C₃H₇COO⁻] and [C₃H₇COOH] concentrations (Also, you can find moles of each substance and replace them in the equation.

Butanoic acid reacts with LiOH, producing C₃H₇COO⁻, thus:

C₃H₇COOH + LiOH → C₃H₇COO⁻ + H₂O + Li⁺

Moles of both reactants, C₃H₇COOH and LiOH are:

C₃H₇COOH = 0.0300L ₓ (0.1000mol / L) = 0.003000moles of C₃H₇COOH

LiOH = 0.0299L ₓ (0.1000mol / L) = 0.00299 moles of LiOH.

That means moles of C₃H₇COO⁻ produced are 0.00299 moles.

And moles of C₃H₇COOH that remains in solution are:

0.00300 - 0.00299 = 0.00001 moles of C₃H₇COOH

Replacing in H-H equation:

pH = pKa + log₁₀ [C₃H₇COO⁻] / [C₃H₇COOH]

pH = 4.81 + log₁₀ [0.00299moles] / [0.00001moles]

7 0

3 years ago

A quantity of water vapor at 100°C is condensed to liquid water at the same temperature. In the process, 180,414.08 joules of

salantis [7]

Answer:

0.08kg

Explanation:

Given parameters:

Temperature of water = 100°C

Quantity of heat released = 180414.08J

Unknown:

Quantity of water condensed = ?

Solution:

This is simple phase change process without any attendant change in temperature.

To solve this problem, use the formula below;

H = mL

H is the heat released

m is mass

L is the latent heat of condensation of water = 2260 kJ/kg

Insert the parameters and solve;

180,414.08 = m x 22.6 x 10⁵ J/kg

m = $\frac{180414.08}{2260000}$ = 0.08kg

5 0

3 years ago