All categories

3 years ago

a photon of light has a frequency of 3.5 x 10 to the 14th Hertz what is the wavelength of this light what color is this late

1 answer:

4 0

Wavelength relates to frequency as follows: λ=vf in which f is the frequency, v is the speed of light, and λ is the wavelength.

You might be interested in

What are the units of molar mass?<br> O A. Lig<br> O B. g/mol<br> O c. g/L<br> O D. mol/g

Lorico [155]

The units of molar mass is g/mol that is the letter B.

4 0

3 years ago

Read 2 more answers

What is a solid formed from liquid reactants during chemical reaction

Zinaida [17]

A solid formed from liquid reactants chemical reactions is called a precipitate.

3 0

3 years ago

Read 2 more answers

what type of science allows us to alter the DNA of a corn plant so that it will contain more protein?

fiasKO [112]

Answer:

biotechnology

Explanation:

hope this helps have a good day

4 0

3 years ago

Read 2 more answers

EXTRA POINTSSS 1. A solution at 25 degrees Celsius is 1.0 × 10–5 M H3O+. What is the concentration of OH– in this solution?

AlekseyPX

Answer:

Concentration of OH⁻:

1.0 × 10⁻⁹ M.

Explanation:

The following equilibrium goes on in aqueous solutions:

$\text{H}_2\text{O}\;(l)\rightleftharpoons \text{H}^{+}\;(aq) + \text{OH}^{-}\;(aq)$ .

The equilibrium constant for this reaction is called the self-ionization constant of water:

$K_w = [\text{H}^{+}]\cdot[\text{OH}^{-}]$ .

Note that water isn't part of this constant.

The value of $K_w$ at 25 °C is $10^{-14}$ . How to memorize this value?

The pH of pure water at 25 °C is 7.
$[\text{H}^{+}] = 10^{-\text{pH}} = 10^{-7}\;\text{mol}\cdot\text{dm}^{-3}$
However, $[\text{OH}^{-}] = [\text{H}^{+}]=10^{-7}\;\text{mol}\cdot\text{dm}^{-3}$ for pure water.
As a result, $K_w = [\text{H}^{+}] \cdot[\text{OH}^{-}] = (10^{-7})^{2} = 10^{-14}$ at 25 °C.

Back to this question. $[\text{H}^{+}]$ is given. 25 °C implies that $K_w = 10^{-14}$ . As a result,

$\displaystyle [\text{OH}^{-}] = \frac{K_w}{[\text{H}^{+}]} = \frac{10^{-14}}{1.0\times 10^{-5}} = 10^{-9} \;\text{mol}\cdot\text{dm}^{-3}$ .

8 0

3 years ago

What is the bond order for a single covalent bond?

hram777 [196]

Answer:

We typically represent covalent bonds with a dash ( - ) between the atoms. This indicates a single bond. Ex: Cl - Cl

Single bond, double bond, triple bond.

Explanation:

We call it a single covalent bond because the atoms are sharing a single pair of electrons.

4 0

3 years ago