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Kryger [21]
3 years ago
12

Show a sample for calculating frequency from wavelength​

Chemistry
1 answer:
fredd [130]3 years ago
7 0

Wavelength to frequency formula

Frequency from Wavelength. In this formula, f represents frequency, V represents the velocity of the wave, and λ represents the wavelength of the wave. Example: A certain sound wave traveling in the air has a wavelength of 322 nm when the velocity of sound is 320 m/s.

Hope This Helps!  Have A Nice Day!!

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Please i need help ……
nasty-shy [4]

Answer:

H2

Explanation:

(l) means liquid

(s) means solid

(g) means gaseous

I hope this helped [:

3 0
2 years ago
How many mL of 0.715 M HCl is required to neutralize 1.25 grams of sodium carbonate? (producing carbonic acid)
jonny [76]

Answer:

34 mL

Explanation:

We'll begin by calculating the number of mole in 1.25 g of sodium carbonate, Na₂CO₃. This can be obtained as follow:

Mass of Na₂CO₃ = 1.25 g

Molar mass of Na₂CO₃ = (23×2) + 12 + (16×3)

= 46 + 12 + 48

= 106 g/mol

Mole of Na₂CO₃ =?

Mole = mass /molar mass

Mole of Na₂CO₃ = 1.25 / 106

Mole of Na₂CO₃ = 0.012 mole

Next, we shall determine the number of mole HCl needed to react with 0.012 mole of Na₂CO₃.

The equation for the reaction is given below:

Na₂CO₃ + 2HCl —> H₂CO₃ + 2NaCl

From the balanced equation above,

1 mole of Na₂CO₃ reacted with 2 moles of HCl.

Therefore, 0.012 mole of Na₂CO₃ will react with = 0.012 × 2 = 0.024 mole of HCl.

Next, we shall determine the volume of HCl required for the reaction. This is illustrated:

Mole of HCl = 0.024 mole

Molarity of HCl = 0.715 M

Volume of HCl =?

Molarity = mole /Volume

0.715 = 0.024 / volume of HCl

Cross multiply

0.715 × volume of HCl = 0.024

Divide both side by 0.715

Volume of HCl = 0.024 / 0.715

Volume of HCl = 0.034 L

Finally, we shall convert 0.034 L to mL

This can be obtained as follow:

1 L = 1000 mL

Therefore,

0.034 L = 0.034 L × 1000 mL / 1 L

0.034 L = 34 mL

Therefore, 34 mL of HCl is needed for the reaction.

6 0
3 years ago
Given the molecular formula, C9H13N, the correct empirical formula<br> is
Lesechka [4]

Answer:

C9H13N

Explanation:

Since there is no common factor besides 1, the formula is already the empirical formula for this compound.

7 0
3 years ago
Explain how cells can only come from pre-existing cells. How does that work ?
AysviL [449]

Answer:

Cells can only be formed by division of pre-existing cells. [Students should be aware that the 64 codons in the genetic code have the same meanings in nearly all organisms, but that there are some minor variations that are likely to have accrued since the common origin of life on Earth

Explanation:

4 0
3 years ago
If a plant cell is placed in a solution and the cell shrivels up, what type of solution was it placed in? How do you know?
PolarNik [594]

Answer:

The cell is in a Hypotonic solution. When a cell is in a Hypotonic solution the lower osmotic pressure causing water to move across the pressure gradient into the solution causing the cell to shrivel.

5 0
2 years ago
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