Answer:
1 2/21
Step-by-step explanation:
3/7+2/3.
Cross mutiply:
7*3 is 21.
3*3 is 9.
7*2 is 14.
14/21+9/21.
Add: 14+9=23.
23/21.
1 2/21.
Hope this helps plz hit the crown :D
The concentration of ions in the solution of lemon juice whose pH value is 2.32 is 4.79×10⁻³ M.
<h3>What is pH value?</h3>
The pH value shows that how much a solution is acidic or basic. The range of the pH value lies between the 0-14.
The pH value can be calculated with the following formula.
![\rm pH=log[H^{+}]](https://tex.z-dn.net/?f=%5Crm%20pH%3Dlog%5BH%5E%7B%2B%7D%5D)
Here, [H⁺] is the molar hydrogen ion concentration.
The pH of lemon juice at 298 K is found to be 2. 32. Put this value of pH in the above formula as,
![\rm 2.32=log[H^{+}]\\\ [H^{+}]=4.79\times10^{-3} \rm \; M](https://tex.z-dn.net/?f=%5Crm%202.32%3Dlog%5BH%5E%7B%2B%7D%5D%5C%5C%5C%20%5BH%5E%7B%2B%7D%5D%3D4.79%5Ctimes10%5E%7B-3%7D%20%5Crm%20%5C%3B%20M)
Hence, the concentration of ions in the solution of lemon juice whose pH value is 2.32 is 4.79×10⁻³ M.
Learn more about the pH value here;
brainly.com/question/940314
Answer:
Zeros: 5, multiplicity 1; -4 multiplicity 2; degree 3
y=1(x-5)^1(x+4)^2
y=(x+4)^2(x-5)
y=(x^2+8x+16)(x-5)
y=x^3+8x^2+16x-5x^2-40x-85
y=x^3+3x^2-24x-85
Step-by-step explanation:
Answer:
It is False.
Step-by-step explanation:
When you substitute the coordinates into the inequality equation :




Therefore, 10 isn't greater than 55.
Answer:
wsg??
Step-by-step explanation: