Answer:
[KOH] = 7.76×10⁻³ M
[Ca(OH)₂] = 2.39×10⁻³ M
Explanation:
KOH → K⁺ + OH⁻
pH = - log [H⁺]
14 = pH + pOH
pOH = - log [OH⁻]
10^-pOH = [OH⁻]
14 - 11.89 = 2.11 → pOH
2.11 = - log [OH⁻]
10⁻²°¹¹ = [OH⁻] → 7.76×10⁻³ M
As ratio is 1:1, [KOH] = 7.76×10⁻³ M
14 - 11.68 = 2.32 → pOH
10⁻²°³² = [OH⁻] → 4.78×10⁻³ M
Ca(OH)₂ → Ca²⁺ + 2OH⁻
Ratio is 2:1, so I will have the half of base.
4.78×10⁻³ /2 = 2.39×10⁻³ M
Answer:
3
Explanation:
you must multiply everything out till everything is equal on both sides
Tonga Trench is convergent.
- In the western Pacific Ocean, there is a trench known as the Tonga Trench. It is the second-deepest trench on Earth after the Mariana Trench and the deepest in the Southern Hemisphere.
- The Tonga Trench was created millions of years ago by a process known as subduction, in which two tectonic plates collide and push one under the other.
- The Tonga Trench is 850 miles long and typically reaches depths of 20,000 feet.
- From the southwest corner of the Kermadec Plate to the northwest point of the Tonga Plate, there is a convergent plate boundary known as the Kermadec-Tonga subduction zone.
- The Tonga Trench's Horizon Deep, located at 23.25833°S 174.726667°W, is its deepest point.
- There are numerous volcanoes in the Tonga Trench, both active and dormant, and it is prone to earthquakes and tsunamis.
Learn more about mariana trench here:
brainly.com/question/11444257
#SPJ9
Answer:
The missouri River is a Longesr tributary of the Mississippi River.
The answer is 80 atomic mass