3 years ago

A Write a set of four quantum numbers possible for the circled electron in arsenic (As). (There could be more

Chemistry

1 answer:

Hunter-Best [27]3 years ago

5 0

Uh what grade u in cuz i ain’t never learned that

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I could really use some help with this question, thank you in advance!

Taya2010 [7]

C because
Explanation Plato

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3 years ago

A student measures the absorbance of a sample of red dye #3 using a spectrophotometer. If the absorbance is measured as 0.468, w

Gre4nikov [31]

Answer:

5.88 μM is the concentration of red dye in the sample.

Explanation:

Absorbance is defined s capacity of a substance to absorb a light of a specified wavelength.It is calculated by using Beer-Lambert Law:

$A=\epsilon lc$

A = absorbance

$\epsilon$ = Molar absorptivity

c = concentration

l = Length of the solution through which light passes

Given, A = 0.468, l = d = 1.00 cm,c = ?

$\epsilon =7.96\times 10^4 M^{-1} cm^{-1}$

$A=\epsilon lc$

$0.468=7.96\times 10^4 M^{-1} cm^{-1}\times 1.00 cm\times c$

$c=5.8793\times 10^{-6} mol/L=5.8793 mol/(\mu L)\approx 5.88mol/(\mu L)$

( $1 L= 1,000,000 \mu L$ )

5.88 μM is the concentration of red dye in the sample.

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3 years ago

The atomic number of an element that has 9 protons 9 electrons and 10 neutrons is?

natali 33 [55]

Answer:

nor its just

Explanation:

9 i need answer to be longer so im typing this out

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3 years ago

During science lab, Jacob mixes together sodium hydroxide (NaOH) and hydrochloric acid (HCl). The two chemicals react to form so

Svet_ta [14]

The answer is B. Because reactions are what goes in. Products are what comes out

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3 years ago

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Which of these is a way that bio stimulation can be used ?

Aneli [31]

Answer:

To combat the spread of invasive species

hope that helped <3

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3 years ago