Answer:
H₂ + CuO → Cu + H₂O
Explanation:
We want to balance the given equation;
H₂ + CuO → Cu(OH)₂ + H₂O
To balance this we have to make sure the number of each element on the left is equal to the number of each element on the right.
Thus, the correct balanced equation is;
H₂ + CuO → Cu + H₂O
Answer:
0.3097 moles of an nonionizing solute would need to be added.
Explanation:
Molal elevation constant =
Normal boiling point of ethanol =
Boiling of solution =
Moles of nonionizing solute = n
Mass of ethanol (solvent) = 47.84 g
Elevation boiling point:
n = 0.3097 mol
0.3097 moles of an nonionizing solute would need to be added.
Answer:
4 m/s
Explanation:
Step 1: Given data
- Mass of the balloon (m): 400 kg
- Kinetic energy of the balloon (KE): 3200 J
Step 2: Calculate the velocity (v) of the balloon
The kinetic energy is the energy that the balloon has due to its movement. We can calculate the velocity of the balloon using the following expression.
v = √(2 × KE/m)
v = √(2 × 3200 J/400 kg) = 4 m/s
I got 9.25527 for the pKa
<span>then for the Henderson-Hasselbalch equation: </span>
<span>9.00=9.25527+log(.600/acid) </span>
10^(-.25527)=(.600/acid)correct to this line. Then
0.5556 = 0.6/acid and
acid = 0.6/0.5556 = 1.08 which is the reciprocal of your number)
<span>.5556/.600M=acid </span>
<span>acid=.925925...M </span>
<span>(.925925)*2.10L= Molarity</span>
Answer: The steepness of a ramp affects it by making it easier or harder.
Explanation: It's a bit situational. If you were going up a steep ramp with a heavy load, it will increase the work necessary, whereas if you were going down a ramp, it would decrease the work necessary. If you need this simply put, think about biking up and down a hill. It would be easier going down than up.