Answer:
0.033 M
Explanation:
From the question given above, the following data were obtained:
Volume of stock solution (V1) = 250 mL
Molarity of stock solution (M1 ) = 0.10 M
Volume of diluted solution (V2) = 750 mL
Molarity of diluted solution (M2) =.?
Thus, we can obtain the molarity of the diluted solution by using the dilution formula as illustrated below:
M1V1 = M2V2
0.1 × 250 = M2 × 750
25 = M2 × 750
Divide both side by 750
M2 = 25/750
M2 = 0.033 M
Therefore, the molarity of the diluted solution is 0.033 M.
Answer: Reproducible experiments help build confidence in the theory.
Explanation:
Reproducibility means repetition of an experiment by another scientist in order to check whether the result is same or not.
Further, this rechecked result is used by the scientist to carry out further research or experiments that can lead to the formation of a theory.
Thus, it can be concluded that reproducible experiments help build confidence in the theory.
I think its called refraction
Answer:
Explanation:
absolute pressure = atmospheric pressure + gauge pressure
125.4 k Pa = 99.8 k Pa + gauge pressure
gauge pressure = 25.6 kPa .
Answer: The box is moving downward with increasing speed.
Explanation: