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jeka94
3 years ago
8

professional and amateur athletes often tested for the use of illegal performance in Hensing drugs which process is used to sepa

rate these chemicals from a blood or urine sample
Chemistry
2 answers:
Wittaler [7]3 years ago
7 0

Answer:

Chromatography

Explanation:

ser-zykov [4K]3 years ago
6 0

Answer:

hmmmmmm

Explanation:

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siniylev [52]
That is not a question/problem and makes no sense whatsoever
4 0
3 years ago
Two gas-filled tanks have the same volume, temperature, and pressure. They are identical in every way except that one is filled
Tems11 [23]

Answer:

The tank with O₂ weighs more.

Explanation:

We can find the mass of gas using the ideal gas equation.

P.V=n.R.T=\frac{m}{M} .R.T\\m=\frac{P.V.M}{R.T}

Considering the pressure (P), volume (V), temperature (T) and ideal gas constant (R) are the same, we can establish that:

m ∝ M

The mass is directly proportional to the molar mass. The molar mass of O₂ (32 g/mol) is higher than the molar mass of N₂ (28 g/mol). Therefore, the tank with O₂ weighs more.

8 0
3 years ago
What is the molarity of a sodium hydroxide solution containing 2 moles of NaOH with a volume of .5L?
Maksim231197 [3]

Answer:

0.4M NaOH

Explanation:

Molarity, M, is an unit of concentration widely used defined as the ratio between moles of solute (In this case, NaOH) and volume of solution in liters.

As the solution contains 2 moles of NaOH-Moles of solute- in 5L of solution, the molarity is:

2 moles NaOH /  5L =

<h3>0.4M NaOH</h3>
5 0
3 years ago
What is the charge of Fe?
ki77a [65]
It depends on the context iorn is a transition metal so it can hold a charge from 1-8
7 0
4 years ago
When will Le Chatelier's principle come into effect?
True [87]
If u disturbed equilibrium position then this principal comes into effect deciding how to counteract the disturbance.
6 0
3 years ago
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