Based on the calculations, the solubility of mg(oh)₂ at a pH of 12.70 is equal to 3.4 × 10⁻⁵ M.
<u>Given the following data:</u>
- Ksp of mg(oh)₂ = 1.6 × 10⁻¹³
<h3>What is pH?</h3>
pH is an abbreviation for the power of hydrogen ions and it can be defined as a measure of the molar concentration of hydrogen ions that are present in a given solution. Thus, the power of hydrogen ions (pH) is generally used to identify or specify the acidity, neutrality, or basicity of any chemical solution.
First of al, we would write the properly balanced chemical equation for this chemical reaction:
Mathematically, the Ksp for the above chemical reaction is given by:
Ksp = [Mg²⁺][OH⁻]²
Ksp = [x][2x]²
1.6 × 10⁻¹³ = 4x³
x = ∛4 × 10⁻¹⁴
x = 3.4 × 10⁻⁵ M.
Read more on solubility here: brainly.com/question/3006391
Based on the excerpt, this part of a letter is called the: C. body.
<h3>What are the parts of a letter?</h3>
Generally, there are four (4) main parts of a letter and these include the following:
In English literature, the body of a letter comprises a detailed information about the subject matter or topic being discussed.
Read more on body here: brainly.com/question/9069944
#SPJ1
<u>Complete Question:</u>
Read part of a letter
I believe our school should promote Earth Day
activities. We could encourage efforts to walk to school,
and we could dedicate the afternoon to tending our
school grounds.
This part of a letter is called the? heading. salutation. body. closing.
x^2-7+y, i think... not totally sure tho
Answer:
draw a circle. inside draw one long and tangled squiggle.
label the outline of the circle the cell membrane
label squggle as DNA
hope this helps :)
ANSWER:
-The response indicates that the plasmid that must contain the CD3γ core promoter sequence but the fewest or no negative regulatory sequences is pCD3γ-15 (because this plasmid gives the greatest luciferase activity).
-The response indicates that the different sequences cloned into the plasmids contain different combinations of positive and negative regulatory sequences.
-The response indicates that the percent increase is approximately 100%. (The pCD3γ-59 bar ends at the 2 and the pCD3γ-149 bar ends at the 4 on the axis labeled Relative Luciferase Activity.)