1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
inessss [21]
3 years ago
13

How many moles are in a balloon that is 50.2L, 755 mmHg and -22.0C?

Chemistry
1 answer:
Inessa05 [86]3 years ago
8 0

Answer:

n ≈ 2.42 moles

General Formulas and Concepts:

<u>Chem</u>

Ideal Gas Law: PV = nRT

  • P is pressure in mmHg
  • V is volume in liters
  • n is number of moles
  • R is a constant (62.4 L · mmHg/mol · k)
  • T is temperature in Kelvins

K = °C + 273

Explanation:

<u>Step 1: Define</u>

V = 50.2 L

P = 755 mmHg

T = -22.0°C = 251 K

<u>Step 2: Find moles </u><em><u>n</u></em>

(755 mmHg)(50.2 L) = n(62.4 L · mmHg/mol · k)(251 K)

37901 mmHg · L = n(15662.4 L · mmHg/mol)

n = 2.41987 moles

<u>Step 3: Check</u>

<em>We are given 3 sig figs. Follow sig fig rules.</em>

2.41987 moles ≈ 2.42 moles

You might be interested in
what type of bond requires the give and take of electrons? a. ionic b. polar disalent c. polar covalent d. nonpolar covalent
Effectus [21]
Ionic bond involves electrostatic attraction between oppositely charged ions.
The ions are atoms that have gained 1 or more electrons and atoms that have lost 1 or more electrons.
Answer: The type of bond that requires the give and take of electrons is 
A ) ionic bond. 
3 0
3 years ago
What element has 25 electrons transition element
kolbaska11 [484]
Manganese has 25 electrons and is a transition element
8 0
2 years ago
Read 2 more answers
Which of the followings are true 1,3-BPG? A. It regulates Hb B. It contains a high-energy bond C. It contains two ester bonds D.
weeeeeb [17]

Answer:

D. It contains a phosphate with higher phosphoryl transfer potential than ATP

Explanation:

1,3-Bisphosphoglycerate contains a phosphate group that has high phosphoryl transfer potential than ATP (they can transfer the phosphoryl group to ATP). Other high phosphoryl transfer potential groups include :Creatine kinase and phosphoenolpyruvate.

7 0
3 years ago
A sample of helium gas in a balloon is compressed from 4.0 L to 3.2 L at a constant temperature. If the pressure of the gas in t
vampirchik [111]

Answer:

286 kPa

Explanation:

Boyles law states that volume of gas is inversely proportional to pressure o gas for a fixed amount of gas at constant temperature

P1V1 = P2V2

where P1 is pressure and V1 is volume at first instance

P2 is pressure and V2 is volume at the second instance

substituting the values in the equation

229 kPa x 4.0 L = P2 x 3.2 L

P2 = 286.25 kPa

the new pressure is 286 kPa

4 0
3 years ago
For the reaction shown, calculate how many grams of each product form when the following amounts of reactant completely react to
stira [4]
This may help you
<span>You need to use some stoichiometry here. The only way to do that is if you're working in moles. Since you're given grams of Al, you can convert that moles by dividing by the molar mass. Then from looking at the coefficients in your equation, you can see that for however many moles of Al react, the same numbers of moles of Fe will be produced, but only half as many moles of Al2O3 will be produced. To go back to grams, multiply the moles of each product that you get by their molar masses!</span>
7 0
3 years ago
Other questions:
  • Which is the stronger acid in each of the following pairs? Explain your reasoning.
    14·1 answer
  • Alkanes do not have geometric isomers because the carbon atoms in their carbon-carbon bonds are _____.
    10·2 answers
  • Three apprentice tailors (X, Y, and Z) are assigned the task of measuring the seam of a pair of trousers. Each one makes three m
    11·1 answer
  • How many different types of toxins do molds make that can end up on our food and in our bodies?
    8·1 answer
  • if 8.15 ml of water is placed in a graduated cylinder the mass of the cylinder = 56.98g and the combined mass of both the cylind
    14·1 answer
  • 3. The number of electrons and neutrons in an atom are 13 and 14, respectively. Find out the mass number, atomic number, valency
    9·1 answer
  • I'm not sure what the answer is
    8·1 answer
  • A gas mixture contains the following gases with the mole fractions indicated:
    9·1 answer
  • The field of corn shown below was grown with 250 L/ha herbicide and no insecticide. Based what do you observe work what’s the re
    6·1 answer
  • WHAT IS PRECIPITATION REACTION​
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!