Answer:
Explanation:
Hello!
In this case, we can divide the problem in two steps:
1. Dilution to 278 mL: here, the initial concentration and volume are 1.20 M and 52.0 mL respectively, and a final volume of 278 mL, it means that the moles remain the same so we can write:
So we solve for C2:
2. Now, since 111 mL of water is added, we compute the final volume, V3:
So, the final concentration of the 139 mL portion is:
Best regards!
The answer is likely to be A
Try your luck kid hope it helps
Well you should study how different chemicals work, and make flashcards to carry around or make notes during class to study for later
Question:
How many neutrons are there in 186W
Answer:
112
hope it helps (^^)
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