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
san4es73 [151]
3 years ago
12

What is the volume of 3.5 moles of oxygen gas (O2) at standard temperature and pressure (STP)?

Chemistry
1 answer:
baherus [9]3 years ago
4 0
1 mole ----------- 22.4 L ( at STP )
3.5 mols --------- ?

V  = 3.5 x 22.4 / 1

V = 78.4 L

hope this helps!


You might be interested in
2C8H18 (1) + 2502 (g) --> 16CO2 (g) + 18H2O (g)
Makovka662 [10]

Answer:

One gallon of octane produces approximately 7000 L of carbon dioxide.

Note:

I believe that the mass of octane should have been given as 2661 g. However, I understand that your instructor probably gave you this problem, so I will use 4000 g for the approximate mass of one gallon of octane. You can rework the problem on your own, substituting the correct masses of octane if you wish.

Step1. You must first determine the number of moles that are in 4000 g of octane, using the molar mass of octane. Step 2. Then you must determine the number of moles of carbon dioxide that can be produced by that number of moles of octane, based on the mole ratio between octane and carbon dioxide in the balanced equation. Step 3. Then use the ideal gas law to determine the volume in liters of carbon dioxide that can be formed.

5 0
2 years ago
Is a Animal and Plant cell living
Mila [183]
Yes Animal and plant are cell living
7 0
3 years ago
When a 5.00-g metal piece, A, was immersed in 38.0 mL of water, the water level rose to 50.0 mL. Similarly, when a 5.00-g metal
Mnenie [13.5K]

Answer:

A is denser than B as it's volume for the same mass is smaller.

Explanation:

Hello.

In this case, we first need to take into account that the density of each metal A and B is computed by dividing the mass over the volume of each metal which is actually computed by substracting the volume of water from the volume of the water and the solid:

V_A=50.0mL-38.0mL=12.0mL\\\\V_B=60.0mL-38.0mL=22.0mL

Next, we compute the densities as shown below:

\rho_A=\frac{m_A}{V_A}=\frac{5.00g}{12.0mL}=0.42g/mL\\  \\\rho_B=\frac{m_B}{V_B}=\frac{5.00g}{22.0mL}=0.23g/mL

In such a way, A is denser is B as it's volume for the same mass is smaller.

Best regards.

4 0
3 years ago
Helpppp nowwww plsss!!
pogonyaev

Answer:

A

Explanation:

if the earth slows down then that will give more time to the sun meaning days/nights will be longer

5 0
3 years ago
What do a mole of magnesium (Mg) and a mole of iron (Fe) have in common?
azamat
What they have in common is that they both have the same number of atoms.
9 0
3 years ago
Other questions:
  • Why should you never mix unknown chemicals?
    12·1 answer
  • Match the scientist to his contribution to the atomic theory - Thomson - Rutherford - Bohr A. Electron energy levels B. Nucleus
    13·1 answer
  • 2' A mixture containing 2.75 gof ammonium chloride (NH4cl) in 5.0 g of water was heated to dissolve the solid and then allowed t
    6·1 answer
  • Which statement is true according to the kinetic theory?
    10·2 answers
  • Identify the acids and the bases in the chemical equation.
    5·1 answer
  • The nucleus is:
    15·1 answer
  • Why is a 9-v transistor battery used as the source of electrical power for electrolysis rather than the power supply that plugs
    6·1 answer
  • Which of the following is correct?
    15·2 answers
  • What is the madd in grams of 0.40 moles of sodium borohydride, NaBH4
    6·1 answer
  • The Young's modulus values for iron and lead are 210 GPa and 16 GPa, respectively. Based on the information, which statement is
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!