Answer
is: concentration
ammonia is higher than concentration of ammonium ion.<span>
Chemical reaction of ammonia in water: NH</span>₃ + H₂O →
NH₄⁺ + OH⁻.<span>
Kb(NH</span>₃) = 1,8·10⁻⁵.<span>
c</span>₀(NH₃) = 0,8 mol/L.<span>
c(NH</span>₄⁺) =
c(OH⁻) = x.<span>
c(NH</span>₃) =
0,8 mol/L - x.<span>
Kb = c(NH</span>₄⁺) · c(OH⁻) /
c(NH₃).<span>
0,000018 = x² / 0,8 mol/L - x. </span>
<span>x</span>² + 0,000018x - 0,0000144 = 0.
<span>
solve quadratic equation: x = c(NH</span>₄⁺) = 3,79·10⁻<span>³ mol/L.</span>
Answer:
Explanation:
1. Change object motion - unbalanced force
2. Push or pull - Balanced forces do not cause a change in motion. When balanced forces act on an object at rest, the object will not move. If you push against a wall, the wall pushes back with an equal but opposite force. Neither you nor the wall will move. Forces that cause a change in the motion of an object are unbalanced forces. So if object move it is unbalanced.
3. Have direction - unbalanced force
4. Do not change objects motion - balanced force
5. Net force does not =0 - unbalanced force
6.net force =0 - balanced force
I believe it is E because Cesium has the most electrons, protons, and neutrons.
Answer:
1. Richter
2. moment
Explanation:
I just submitted it on edge! Try it out for yourself bc I promise this is 100 percent correct! Have a great day