CHEMISTRY COLLEGE

Assuming complete distribution, what is the molarity of 10 milligrams of lisinopril in 100 liters?

Answers

Answer 1
Answer:

Answer:

Explanation:

Lisoprisil's molecular mass is 405.488g/mol, we'll use this fact to calculate molarity, which units are mol/L, and we proceed to the calculus:

  • First, we'll unify unities, the 10 milligrams of lisinopril we'll transform into grams.

  • Now that we have the same unities we'll calculate molarity using the molecular mass, the grams of lisinopril and the liters in which these grams are, let's consider that our final unities have to be mol/L.

I hope you find this information useful and interesting! Good luck!


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MIDDLE SCHOOL

55 L of a gas at 25oC has its temperature increased to 35oC. What is its new volume?

Answers

Answer:

Approximately 56.8 liters.

Assumption: this gas is an ideal gas, and this change in temperature is an isobaric process.

Explanation:

Assume that the gas here acts like an ideal gas. Assume that this process is isobaric (in other words, pressure on the gas stays the same.) By Charles's Law, the volume of an ideal gas is proportional to its absolute temperature when its pressure is constant. In other words

,

where

  • is the final volume,
  • is the initial volume,
  • is the final temperature in degrees Kelvins.
  • is the initial temperature in degrees Kelvins.

Convert the temperatures to degrees Kelvins:

.

.

Apply Charles's Law to find the new volume of this gas:

.

HIGH SCHOOL

A 24-V battery is powering a light bulb with a resistance of 2.5 ohms. What is the current flowing through the bulb? A) 9.6 A B) 21.5 A C) 26.5 A D) 60 A

Answers

Answer:

The correct answer is A.

Explanation:

First, we must pose the formula that relates voltage (V), current (I) and resistance (R).

V = I * R

Now we have as data the tension and the resistance, for which clearing the current remains:

I =

V = 24 V

R = 2,5 ohms

I =

I = = 9.6 A

The circulating current is equal to 9.6 A.

Have a nice day!

The answer is A 9.6 Amps
HIGH SCHOOL

What does Avogadro’s Law state? How many molecules of any gas at STP occupy a volume of 22.41 Liters?

Answers

There is a lot of metric calculations, According to the rules of Avogadro,
22.41 litres of any ideal gast at STP contains 6.023 X 20^23 molecules and it is equal to 1mol of the gas.
Therefore the answer would be 22.41 litres of the ideal gas at STP contains 6.023 X 10^23 molecules.
I hope this helps you :)
HIGH SCHOOL

How many liters of chlorine gas, at standard temperature and pressure, will react with 15.5 grams of potassium metal? Show all of the work used to solve this problem. 2K + Cl2 —> 2KCl

Answers

I think about 6.2 liters

Answer:

V = 6.8 L

Explanation:

2K(s) + Cl2(g) --> 2KCl(s)

25.6g.....?L  

25.6g K x (1 mol K / 39.1g K) x (1 mol Cl2 / 2 mol K) = 0.3274 mol Cl2

PV = nRT

V = nRT / P

V = 0.3274 mol x 0.08206 Latm/molK x 278K / 1.1 atm

V = 6.8 L

The pressure (1.1 atm), which is expressed to two significant digits, limits the precision of the answer to two significant digits.

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