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Lubov Fominskaja [6]
3 years ago
10

What is the frequency in hertz of the blue light having a wavelength of 4.25×10^-11

Chemistry
1 answer:
Anna71 [15]3 years ago
4 0
It would be:  c/∧ = 3*10^8 / 4.25*10^-11 = 7.05 * 10^18 /s...
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What is the freezing point of silver?​
rosijanka [135]

Answer:

1,763°F

Explanation:

I really cant explain it is a little complicated but there is the answer hope it helped you a lot

6 0
3 years ago
Read 2 more answers
Please help! Thanks
trapecia [35]

Th actual yield of the reaction is 24.86 g

We'll begin by calculating the theoretical yield of the reaction.

2Na + Cl₂ → 2NaCl

Molar mass of Na = 23 g/mol

Mass of Na from the balanced equation = 2 × 23 = 46 g

Molar mass of NaCl = 23 + 35.5 = 58.5 g/mol

Mass of NaCl from the balanced = 2 × 58.5 = 117 g

From the balanced equation above,

46 g of Na reacted to produce 117 g of NaCl.

Therefore,

11.5 g of Na will react to produce = (11.5 × 117) / 46 = 29.25 g of NaCl.

Thus, the theoretical yield of NaCl is 29.25 g.

Finally, we shall determine the actual yield of NaCl.

  • Percentage yield = 85%
  • Theoretical yield = 29.25 g
  • Actual yield =?

Actual yield = Percent yield × Theoretical yield

Actual yield = 85% × 29.25

Actual yield = 0.85 × 29.25 g

Actual yield = 24.86 g

Learn more about stoichiometry: brainly.com/question/25899385

7 0
3 years ago
If 5.100 g of c6h6 is burned and the heat produced from the burning is added to 5691 g of water at 21 °c, what is the final temp
emmasim [6.3K]
  <span>C6H12 = 6x12 + 6x1 = 78. 
The equation indicates that 2x78 = 156g benzene will produce 6542kJ. 
Using proportions you can then calculate that 
x/6542kJ = 7.9g / 156g 
x = 331.3kJ = 331300J. 

heat = mass x ΔT x 4.18J/g° 
ΔT = 331300J / (5691g x 4.18J/g°) = 13.9° 

final temp = 21 + 14° = 35°C</span>
4 0
4 years ago
4P + 502 → 2P20x
Thepotemich [5.8K]

Answer:

5

Explanation:

According to the Law of Conservation of Matter, the mass of the products in a chemical reaction must equal the mass of the reactants.

5O2 = 10 Oxygen atoms

In 2POx there must be 10 Oxygen atoms too. => x = 5

...

Hope it can help you.

6 0
4 years ago
Write the complete/total ionic equation for the precipitation reaction that occurs when aqueous iron(II)nitrate is added to aque
VLD [36.1K]
<span>The equation that describes the problem is  Fe(NO3)3(aq) + 3NaOH(aq) ---> Fe(OH)3(s) +  3 NaNO3(aq)
 
The Net ionic equation is written as follows:
 Fe^3(aq) + 3NO3-(aq) + 3Na+(aq) + 3OH-(aq) ---> Fe(OH)3(s) + 3Na+(aq) + 3NO^3-(aq)</span>
6 0
3 years ago
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