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Gelneren [198K]
3 years ago
5

What is a temperature scale used by scienctist?

Chemistry
1 answer:
laila [671]3 years ago
3 0
To measure the kinetic engery  from the inside and outside of something to be able to tell how hot or coll something is.. without touching it also
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What volume is occupied by 35.2 g of carbon tetrachloride if its density is 1.60 g/ml?
ycow [4]

Density is mass divided by volume. Therefore, volume is mass divided by density.

V=\frac{m}{\rho}=\frac{35.2g}{1.60\frac{g}{ml}}=22.0\ ml

8 0
3 years ago
Read 2 more answers
If you combine neon argon and helium what would happen
Savatey [412]
All are gases so no visible reaction persay, unless in closed quarters and then massive pressure.
5 0
3 years ago
Tris has a molecular weight of 121 g/mol. How many grams of Tris would you need to make 100 mL of a 100 mM solution of Tris
Zepler [3.9K]

Answer:

1.21 g of Tris

Explanation:

Our solution if made of a solute named Tris

Molecular weight of Tris is 121 g/mol

[Tris] = 100 mM

This is the concentration of solution:

(100 mmoles of Tris in 1 mL of solution) . 1000

Notice that mM = M . 1000  We convert from mM to M

100 mM . 1 M / 1000 mM = 0.1 M

M = molarity (moles of solute in 1 L of solution, or mmoles of solute in 1 mL of solution). Let's determine the mmoles of Tris

0.1 M = mmoles of Tris / 100 mL

mmoles of Tris = 100 mL . 0.1 M → 10 mmoles

We convert mmoles to moles → 10 mmol . 1mol / 1000mmoles = 0.010 mol

And now we determine the mass of solute, by molecular weight

0.010 mol . 121 g /mol = 1.21 g

8 0
3 years ago
Under what circumstances may a health insurer charge a higher premium to a woman with a genetic disposition to breast cancer? a)
wel

Answer:

D

Explanation:

No company is allowed to discriminate.

8 0
2 years ago
Other than a base and a sugar unit, which of the following is a component of a nucleotide?
just olya [345]

Answer:

C. phosphate group

Explanation:

took quiz on edg

3 0
3 years ago
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