Answer:
Explanation:
<u>1, Formula</u>
- Mass percent = (mass of solute/mass of solution) × 100
<u>2. Determine mass of solution</u>
Substitute the data and clear the mass of solution:
- 3.5 = (3.0g / mass of solution) × 100
- 0.035 = 3.0g / mass of solution
- mass of solution = 3.0 g / 0.035
- mass of solution = 85.714g
<u>3. Determine the mass of solvent:</u>
- mass of solvent = mass of solution - mass of solute
- mass of solvent = 85.714g - 3.0g = 82.714g
Round to two significant figures: 83 g
I think the question for this problem, is to find the capacitance. The working equation would be:
C = Q/V,
where
Q = It
Since f = 1/t, t = (1/300 kHz)(1 kHz/1,000 Hz) = 3.33×10⁻⁶ s
So,
Q = (310×10⁻⁶ A)(3.33×10⁻⁶ s)
Q = 1.033×10⁻⁹ C
Thus,
C = (1.033×10⁻⁹ C)/(3 V)
<em>C = 3.44×10⁻¹⁰ F</em>
Answer:
temperature and mechanism
Explanation:
Arrhenius equation gives us the idea about the factors affecting equilibrium constant.It is given as:
<h3>
</h3>
where k=equilibrium constant
A=pre-exponential factor
=Activation energy
T=temperature
R=Universal gas constant
<h3>It is clear that k depends only on temperature and activation energy.</h3>
Activation energy of a reaction is different for different mechanisms or pathways.Hence k depends on both temperature and mechanism.
Answer:
The standred units of measurements are important to scientists because they are the same measurements that all scientist take to make sure that they all have the correct results.
