Answer:
63.7
Explanation:
Percent yield is actual yield over theoretical yield. In this case, 10/15.7 = .637 = 63.7%.
Answer:
See explanation
Explanation:
Tyndall effect refers to the scattering of light in a solution. Tyndall effect occurs when the size of particles in the solution exceeds 1 nm in diameter. Such solutions are actually called false solutions.
In tincture of iodine, the size of particles in solution is less than 1 nm in diameter hence the solution does not exhibit Tyndall effect. Hence, tincture of iodine is a true solution.
Therefore, if the size of particles in solution exceeded 1nm in diameter, Tyndall effect is observed.
Answer:
the answer is d when the state of matter changes it's not a chem change
Answer: The final concentration is 0.16 M.
Explanation:
According to the dilution law:
where,
= molarity of stock solution = 1.60 M
= volume of stock solution = 54.0 ml
= molarity of diluted solution = ?
= volume of diluted solution = 218 ml
Putting these values:
Now 109 ml of this diluted solution is further diluted by adding 161 mL of water.
Again applying dilution law:
Thus the final concentration is 0.16 M