Chemistry, 21.07.2019 08:00, romyknight

Compared to a solution with a ph value of 7 a solution with a thousand times greater hydronium ion concentration has a ph value of what

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Answer is: solution has a pH value of 4.
pH₁ = 7.
pH = -log[H₃O⁺].
[H₃O⁺]₁ = 10∧(-pH).
[H₃O⁺]₁ = 10⁻⁷ M.
[H₃O⁺]₂ = 10⁻⁷ M ·10³.
[H₃O⁺]₂ = 10⁻⁴ M.
pH₂ = -log[H₃O⁺]₂.
pH₂ = -log(10⁻⁴ M).
pH₂ = 4.
pH (potential of hydrogen) is a numeric scale used to specify the acidity or basicity an aqueous solution.
When pH is less than seven (pH<7), solution is acidic..
When is equal seven (pH = 7), solution is neutral.
When pH is greater than seven (pH > 7), solution is basic.

answered: wendybhenry61391

The pH of the new solution has been 4. Thus, the solution has been more acidic than the precious solution.

The pH has been defined as the negative log of hydronium ion concentration in the solution. The pH has been expressed as:

$\rm pH=-\;log\;[H_3O^+]$

Computation for the pH of the solution

The pH of the given solution has been 7. The hydronium ion concentration has been given as:

$\rm pH=\;-log\;[H_3O^+]\\\\
7=\;-\;log[H_3O^+]\\\\
H_3O^+=10^-^7\;M$

The concentration of the new solution has been 1000 times greater than the previous solution.

The previous solution has hydronium ion concentration of $\rm 10^-^7\;M$ . The concentration of new solution will be:

$\rm New\;solution=10^-^7\;\times\;1000\;M\\
 New\;solution=10^-^4\;M$

The concentration of the new solution has been $\rm 10^-^4\;M$ . The pH of the solution has been given as:

$\rm pH=-log\;[H_3O^+]\\
pH=-log\;[10^-^4]\\
pH=4$

The pH of the new solution has been 4. Thus, the solution has been more acidic than the precious solution.

Learn more about pH of the solution, here:

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answered: Guest

chemical energy is stored in the chemical bonds of atoms and molecules. it can only be seen when it is released in a chemical reaction. when chemical energy is released, the substance from which the energy came is often changed into an entirely different substance.

this chemical reaction releases energy in the form of light and heat. chemical energy is the potential energy stored in the arrangement of atoms within molecules. breaking chemical bonds requires energy, while forming new chemical bonds releases energy.

the atp molecule can store energy in the form of a high energy phosphate bond joining the terminal phosphate group to the rest of the molecule. in this form,energy can be stored at one location, then moved from one part of the cell to another, where it can be released to drive other biochemical reactions.

answered: Guest

answer : (a) volume of the gas = 8.67 × $10^{-3}$ l

(b) second virial coefficient b = -1.21226 l/mole

solution : given, t = 300k

p = 20atm

z = 0.86

n = 8.2 mmoles = 8.2 × $10^{-3}$ moles

r = 0.082 l atm/k/mol

find, (a) volume of gas and (b) second virial coefficient b at 300k.

formula used : $z=\frac{pv}{nrt}$

and $z=1+\frac{b}{v}$

(a) $z=\frac{pv}{nrt}$

$v=\frac{znrt}{p}$

= $\frac{0.86\times 8.2\times[tex]10^{-3}$ \times 0.082\times 300}{20}[/tex]

= 8.67 × $10^{-3}$ l

(b) $z=1+\frac{b}{v}$

$b=(z-1)v$

= (0.00867-1) × 8.659

= - 8.5839 l/mole

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Compared to a solution with a ph value of 7 a solution with a thousand times greater hydronium ion c...