All categories

3 years ago

How would using a wider cuvette affect absorbance?

1 answer:

8 0

The width of the cuvette is important in the spectrophotometric analysis since wider cuvette<span> translates to more absorbing species present in the path where light passes, hence more absorbance is read in the analysis. other factors include the concentration of the sample and the species itself present.</span>

You might be interested in

How do you get all the amino acids that your body needs to make proteins?

mina [271]

In order to get all the amino acids that the body needs to produce proteins, one must eat and drink the necessary food containing amino acids. Amino acids are what comprises proteins thus, in order to obtain the average amount of amino acid, make sure that you have an enough intake of foods rich in proteins.

3 0

4 years ago

2Al(s)+Fe2O3(s)−→−heatAl2O3(s)+2Fe(l) 2Al(s)+Fe2O3(s)→heatAl2O3(s)+2Fe(l) If 26.1 kg Al26.1 kg Al reacts with an excess of Fe2O3

Dmitry_Shevchenko [17]

Answer : The mass of $Al_2O_3$ produced will be, 49.32 Kg

Explanation : Given,

Mass of $Al$ = 26.1 Kg = 26100 g

Molar mass of $Al$ = 26.98 g/mole

Molar mass of $Al_2O_3$ = 32 g/mole

First we have to calculate the moles of $Al$ .

$\text{Moles of }Al=\frac{\text{Mass of }Al}{\text{Molar mass of }Al}=\frac{26100g}{26.98g/mole}=967.38moles$

Now we have to calculate the moles of $Al_2O_3$ .

The balanced chemical reaction is,

$2Al+Fe_2O_3\rightarrow Heat+Al_2O_3+2Fe$

From the balanced reaction we conclude that

As, 2 moles of $Al$ react to give 1 mole of $Al_2O_3$

So, 967.38 moles of $Al$ react to give $\frac{967.38}{2}=483.69$ moles of $Al_2O_3$

Now we have to calculate the mass of $Al_2O_3$ .

$\text{Mass of }Al_2O_3=\text{Moles of }Al_2O_3\times \text{Molar mass of }Al_2O_3$

$\text{Mass of }Al_2O_3=(483.69mole)\times (101.96g/mole)=49317.0324g=49.32Kg$

Therefore, the mass of $Al_2O_3$ produced will be, 49.32 Kg

3 0

3 years ago

The atomic mass on the periodic table represents what?

Artyom0805 [142]

The atomic mass on the periodic table represents the sum of number of protons and number of neutrons.

Atomic mass = Number of protons + number of neutrons

Hope this helps!

7 0

3 years ago

!!!!HELP ASAP!!!! How does the scientific method help scientists?

denis-greek [22]

B it helps then analyze their experience

7 0

4 years ago

Read 2 more answers

What role does DNA play in living organisms?

Mice21 [21]

Answer: a nucleic acid that contains the genetic instructions for the development and function of living things

Explanation:

7 0

4 years ago