Answer:
The pH of the solution is 6.17.
Explanation:
To find the pH of the solution, we have to first calculate its pOH using the formula:
[tex]\boxed{\mathrm{pOH = - log_{10}[OH^-]}}[/tex]
Substituting the given value of [OH⁻] into the formula, we get:
[tex]\mathrm{pOH = -log_{10}(1.49 \times 10^{-8})}[/tex]
[tex]= \bf 7.83[/tex]
Now that we have the value of the pOH of the solution, we can find its pH using the following formula:
[tex]\boxed{\mathrm{pH + pOH = 14}}[/tex]
∴ [tex]\mathrm{pH} + 7.83 = 14[/tex]
⇒ [tex]\mathrm{pH } = 14 - 7.83[/tex]
⇒ [tex]\mathrm{pH } = \bf 6.17[/tex]
Define chemical reaction with examples
Answer:
A chemical reaction is a process where bonds are formed between reactant elements causing interaction hence products are formed.
The two types of chemical reaction:
[tex]{ \boxed{ { \rm{ \bold{ \dashrightarrow \: reversible \: reaction}}}}}[/tex]
This is a reaction where reactants interact chemically to form respective products and also products can react to reverse the reaction (to form reactants).
An example of reaction of hydrogen and oxygen:
[tex]{ \rm{2H_{2(aq)} +O_{2(aq)} \: {}{ ^{ \dashrightarrow}_{ \dashleftarrow} \: 2H _{2}O _{(l)} }}}[/tex]
[tex]{ \boxed{ \rm{ \bold{ \dashrightarrow irreversible \: reaction}}}}[/tex]
It is a one way reaction, cannot be reversed
[tex]{ \rm{Mg_{(s)} + N _{2(g) \: }\rightarrow \: \: Mg _{3} N _{2(s)} }}[/tex]
Inverse relationship
No relationship
Linear relationship