Answer:
- Theoretical yield = 0.7028 g
Explanation:
The reaction that takes places is:
- C₁₀H₈O + C₃H₅Br → C₁₃H₁₂O + HBr
The<u> theoretical yield</u> is calculated when assuming that <em>all of the limiting reactant transformed into the product</em>:
- 0.55 g naphthol ÷ 144gNaphthol/mol * * 184 gEther/mol = 0.7028 g
The <u>percent yield</u> is calculated using the theoretical yield and the experimental yield:
- 0.59g / 0.7028 g * 100% = 83.95%
The answer is D) one unit of a balanced chemical equation
Answer : Nuclear fusion plays an important role in making elements that are heavier than helium.
Explanation : In the given attachment it is clearly observed that nuclear fusion reactions are playing a vital role in making the small elements fuse together to form a higher element as a product. This is observed in those elements which are heavier than helium. The atoms of the elements fuse together and make a larger atomic molecule which is the sum of both the elemental masses.
3. a) 320 mL x 1 L/1000 mL = 0.320 L
b) 948 mL x 1 L/1000 mL = 0.948 L
c) 1834 mL x 1 L/1000 mL = 1.834 L
d) 3267 mL x 1 L/1000 mL = 3.267 L
4. a) 0.75 L x 1000 mL/1 L = 750 mL
b) 0.28 L x 1000 mL/1 L = 280 mL
c) 1.32 L x 1000 mL/1 L = 1320 mL
d) 2.4 L x 1000 mL/1 L = 2400 mL
Hey there !
We know that
Atomic number , z = number of n+number of e
=> Z = 38+28 = 66
Hence the answer is B)Nickel-66
I hope this helps you:)
Have a good day ;)