The end of the bar should end in the exact middle of 8 and 10.
Hope this helps! :)
Step-by-step explanation:
- 1a.2.
- b.1/2 base×height
- c.2 ×1/2 base×height
- base×height
b.
- 1m=100cm
- 1m²=100cm×100cm
- 1m²=10000cm²
- 0.25m²=0.25×10000cm²
- 0.25m²=2500cm²
C.
- .3
- .area of rectangle button+area of back+area of top
- d.total surface area =base×height+area of rectangle button+area of back+area of top
Answer:
event horizon
Step-by-step explanation:
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