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LuckyWell [14K]
4 years ago
8

What is the ph of the solution in which the h+ is 1.0 x10-4 mol/l

Chemistry
1 answer:
Gwar [14]4 years ago
6 0
The definition and formula to calculate pH is:

pH = log { 1 / [H+] }

So, the pH of this solution, whose molar concentration of H+ is [H+] = 1.0 * 10^-4, is:

pH = log { 1 / (1.0 * 10 ^-4) } = log (10^4) = 4

Answer: option C. 4.00
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Determine the energy released per kilogram of fuel used. given mev per reaction, calculate energy in joules per kilogram of reac
tatuchka [14]

The energy released in nuclear reactions are far larger than that released in chemical reactions due to the release of nuclear energy from the nucleus.

<h3>Why is the energy released in a reaction?</h3>

Energy is released in a reaction due to the breaking of bonds are well as formation of bonds.

The quantity of energy released in reactions differs according to the reaction type involved.

When compared to chemical reactions, the energy released in nuclear reactions are very much higher because of the changes that occurs in the nucleus of the atoms involving nuclear energy.

The energy, E released in nuclear reactions is given by the formula below:

E = mc^{2}

where m is the mass of the substance and c is the speed of light.

Therefore, the energy released in nuclear reactions are far larger than that released in chemical reactions.

Learn more about nuclear reactions at: brainly.com/question/984564

6 0
2 years ago
Given that E°red = -0.40 V for Cd2+/Cd at 25°C, find E° and E for the concentration cell expressed using shorthand notation belo
tensa zangetsu [6.8K]

From the information in the question, the  E° and E for the cell is 0.00 V and 0.12 V.

Using the Nernst equation;

Ecell =  E°cell - 0.0592/n log Q

We know that  E°cell = 0.00 V since the anode and cathode are both made up of cadmium.

Substituting the given values into the Nernst equation;

Ecell = 0.00 V - 0.0592/2 log (1.0 × 10-5 M/0.100 M)

Ecell =  0.00 V - 0.0296 log(1 × 10^-4)

Ecell = 0.12 V

Learn more: brainly.com/question/8646601

3 0
3 years ago
What is the osmolarity of .00001 grams (0.1 mg%) of ethanol (does not dissociate) in one liter?
MrMuchimi

Explanation:

As it is known that non-electrolytes do not dissociate. Therefore, molarity of such a solution is equal to the osmolarity of solution.

As, molar mass of ethanol = 46.07 g/mol

Therefore, no. of moles of ethanol will be calculated as follows.

               No. of moles = \frac{mass}{\text{molar mass}}

                                     = \frac{0.00001 g}{46.07 g/mol}

                                     = 2.17 \times 10^{-7} mol

As, molarity is moles of solute in liter of solution. Hence, molarity of ethanol is as follows.

                           Molarity = \frac{\text{no. of moles}}{volume}

                                          = \frac{2.17 \times 10^{-7} mol}{1 L}

                                          = 2.17 \times 10^{-7} mol/L

Since, for the given solution Molarity = osmolarity

Thus, we can conclude that osmolarity of .00001 grams (0.1 mg%) of ethanol  in 1 L is 2.17 \times 10^{-7} osmol/L.

8 0
3 years ago
State 3 properties of acid​
zaharov [31]

Explanation:

taste sour (vinegar)

smell frequently burns nose

texture sticky

5 0
3 years ago
Which pair of elements is most likely to form an ionic bond?
Sphinxa [80]
C.
Ionic bonds are formed between metal atoms, potassium in this case, and non-metal atoms, iodine in this case.
7 0
3 years ago
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