3 years ago

Perform the following

Chemistry

2 answers:

Sever21 [200]3 years ago

6 0

Answer:

8.97998

Explanation:

True [87]3 years ago

5 0

You use the least amount of sig figs in this case 4 from (3.100).

Answer would be 8.980 after rounding

You might be interested in

Photosynthesis in a plant is an example of which characteristic of living things?

lutik1710 [3]

Answer:

<h2><em><u>4. Ability to obtain and use energy</u></em></h2>

4 0

3 years ago

(2pts) During the Purification of Lactate Dehydrogenase (LDH) experiment, you will need 50ml of buffer A150. Buffer A150 is 30mM

torisob [31]

Answer:

The answer is " $20 \ mL$ "

Explanation:

Given:

Molarity= number of moles

because it is 1 Liter

$\to \frac{0.03\ moles}{1.5 moles}=0.02\ L= 20 \ mL \ of\ Tris\\\\$

therefore,

it takes 20 mL of Tris.

$\to \frac{0.150 \ moles}{5\ moles} =0.03\ L\\\\$

$= 30 \ mL \ of\ Nacl$

So, take $20 \ mL\ of\ NaCl.$

6 0

3 years ago

134 grams of nitric acid is added to 512 grams of water. Calculate the molality of nitric acid.

Nana76 [90]

Answer: 4.15234 m

512 g H2O * $\frac{1 kg}{1000 g}$ = 0.512 kg H2O

Nitric Acid: HNO3 = 1.008 + 14.007 + 3(15.999) = 63.012 g/mol

H = 1.008 g/mol

N = 14.007 g/mol

O3 = 3*15.999

134 g HNO₃ * $\frac{mol}{63.012 g}$ = 2.126 mol

m = $\frac{2.126 mol}{0.512 kg}$ = 4.15234 m

6 0

3 years ago

Read 2 more answers

How does the electron-cloud model describe electrons?

Natali5045456 [20]

Answer: C) An electron has a high probability of being in certain regions.

Explanation: How does the electron-cloud model describe electrons? An electron has a high probability of being in certain regions.

***If you found my answer helpful, please give me the brainliest, please give a nice rating, and the thanks ( heart icon :) ***

8 0

3 years ago

A mixture of H2 and water vapor is present in a closed vessel at 20°C. The total pressure of the system is 755.0 mmHg.

Masja [62]

THE ANSWER IS: <u>737.5</u>

I JUST TOOK THE QUIZ!!!!

7 0

3 years ago

Read 2 more answers