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
Effectus [21]
3 years ago
11

How many moles of gas occupy 56.3 L at 0.899 atm and 20.0°C? ​

Chemistry
1 answer:
zzz [600]3 years ago
3 0

Answer:

n = 2.1 mol

Explanation:

Given data:

Number of moles of gas = ?

Volume of gas = 56.3 L

Pressure of gas = 0.899 atm

Temperature of gas = 20°C (20+273 = 293 k)

Solution:

The given problem will be solve by using general gas equation,

PV = nRT

P= Pressure

V = volume

n = number of moles

R = general gas constant = 0.0821 atm.L/ mol.K  

T = temperature in kelvin

0.899 atm × 56.3 L  = n × 0.0821 atm.L/ mol.K  × 293 k

50.614 atm.L = n × 24.055 atm.L/ mol

n = 50.614 atm.L / 24.055 atm.L/ mol

n = 2.1 mol

You might be interested in
3. Ethanol has a density of 0.800 g/mL. <br> a. What is the mass of 225 mL of ethanol?
dedylja [7]

Since the ethanol has a density of 0.800 g/mL, the mass of the ethanol is 180 grams.

<u>Given the following data:</u>

  • Volume of ethanol = 225 mL
  • Density of lead ball = 0.800 g/mL.

To find the mass of the ethanol;

Density can be defined as mass all over the volume of an object.

Mathematically, the density of a substance is given by the formula;

Density = \frac{Mass}{Volume}

Making mass the subject of formula, we have;

Mass = Density \times Volume

Substituting the given parameters into the formula, we have;

<em>Mass of ethanol </em><em>=</em><em> 180 grams.</em>

Read more: brainly.com/question/18320053

3 0
3 years ago
Which statement best describes a physical change?
Inga [223]

Answer:  3 Changes can occur to physical properties of a substance, but the chemical composition of the substance remains the same

Explanation:

Physical change mainly physical properties of a substance while the chemical changes remain unchanged. Once there is a change to the chemistry of the substance, this would be classified as a chemical change.

8 0
3 years ago
Read 2 more answers
What state of matter has more mass?​
antoniya [11.8K]

Answer:

please mark as brainliest!!

Explanation:

ans: gas

The same number of particles in a gas spread further apart than in the liquid or solid states. The same mass takes up a bigger volume . This means the gas is less dense. Density also depends on the material.

6 0
3 years ago
Read 2 more answers
How does the uneven hearing of earth cause convection currents to form?<br> PLEASE ANSWER:)
igor_vitrenko [27]

Answer:

Because of the tilt of Earth on its axis, Earth's surface and atmosphere are unevenly heated by the Sun. Convection currents form in the atmosphere as warmer air rises and cooler air sinks.

3 0
3 years ago
Read 2 more answers
What is the range of pH values in a basic solution?
vovikov84 [41]

Answer:

b. ph is greatet than 7

Explanation:

ph=7 neutral

ph=7-14 basicity as you go up increase basicity

ph=0-7 acodity as you go down increasing acidity

8 0
3 years ago
Other questions:
  • In Rutherford's gold foil experiment, most alpha particles passed through the gold foil without deflection and were detected on
    14·2 answers
  • Worksheet 2.3 writing formulas
    8·1 answer
  • ''give 2 examples of energy transformation that occur when making toast in a toaster oven.''
    5·1 answer
  • Determine the equation of the line with slope 3 that passes through the point M1, 2)
    12·1 answer
  • Webb has calculated the percent composition of a compound. How can he check his result?
    9·2 answers
  • 3. Calculate the average atomic mass for the sample of atoms shown below.
    8·1 answer
  • A graduated cylinder has 100 mL of water in it. A rock is then placed in the cylinder
    7·1 answer
  • I need help with 17,18,19,&amp; 21
    5·1 answer
  • 15 g NiO is dissolved into enough water to make 800. mL of solution. What is the molar concentration of the solution? Report you
    12·1 answer
  • What is the name of the branched alkane shown below?
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!