1 year ago

The maximum energy available for useful work from a spontaneous reaction

Chemistry

1 answer:

Elanso [62]1 year ago

4 0

The answer is: A; Free Energy

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On the account of the physical state of a solute and solvent, solutions can be said to be of _______. Types.

bearhunter [10]

Answer:

c. 9

Explanation:

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1 year ago

The ksp of pbbr2 is 6.60Ã—10âˆ’6. What is the molar solubility of pbbr2 in pure water?

iragen [17]

Answer : The molar solubility of $PbBr_2$ in pure water is, 0.0118 M

Explanation : Given,

$K_{sp}=6.60\times 10^{-6}$

The solubility equilibrium reaction will be:

$PbBr_2\rightleftharpoons Pb^{2+}+2Br^{-}$

Let the molar solubility be 's'.

The expression for solubility constant for this reaction will be,

$K_{sp}=[Pb^{2+}][Br^{-}]^2$

$K_{sp}=(s)\times (2s)^2$

Now put all the given values in the above expression, we get:

$6.60\times 10^{-6}=4s^3$

$s=0.0118M$

Therefore, the molar solubility of $PbBr_2$ in pure water is, 0.0118 M

4 0

1 year ago

The distance between two corresponding parts of a wave is the wave's

Ivenika [448]

That would be the e
waves wave length

7 0

1 year ago

A measurement gave a mass of .34kg. This is the same as 340g

Dmitriy789 [7]

Answer:

Yes it is. 0.34 kg = 340 g (Kilograms and grams)

Explanation:

When we convert from kg to grams we multiply by 1000 because kilo mean 1000.

0.34*1000= 340

6 0

1 year ago

7. What is the potential energy of a rock that has a mass of 100 kg that is sitting on top of a hill 300 m high?

levacccp [35]

Answer:

294000 J or 294 kJ

Explanation:

Potential energy is given by:

$U=mgh$

Where U is potential energy, m is mass, g is acceleration due to gravity, and h is height. Using this equation:

$U=100(9.8)(300)\\U=294000$

7 0

1 year ago