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
Stolb23 [73]
3 years ago
7

What volume would a 0.871 gram sample of air occupy if the density of air is 1.29 g/L?

Chemistry
2 answers:
-Dominant- [34]3 years ago
7 0

Answer:

\boxed{\text{675 mL}}

Explanation:

V = \text{0.871 g} \times \dfrac{\text{1 L}}{\text{1.29 g}} = \text{0.675 L} = \textbf{675 mL}\\\\\text{The volume of air is } \boxed{\textbf{675 mL}}

IgorLugansk [536]3 years ago
3 0

Answer : The volume of the sample of air will be 0.675 L

Explanation :

Density : It is defined as the mass of a substance contained per unit volume.

Formula used :

Density=\frac{Mass}{Volume}

Given:

Mass of sample of air = 0.871 g

Density of air = 1.29 g/L

By using formula, we get:

1.29g/L=\frac{0.871g}{Volume}

Volume=0.675L

Thus, the volume of the sample of air will be 0.675 L

You might be interested in
Someone please help me please
mojhsa [17]

Answer:

1. Solid

2. Melting Point

3. liquid

4. Boiling point

5. gas

3 0
2 years ago
A gas at STP has a volume of 1.00 L. If the pressure is doubled and the temperature remains constant, what is the news of the ga
4vir4ik [10]

Answer: PV = nRT

A gas at STP... This means that the temperature is 0°C and pressure is 1 atm.

R is the gas constant which is 0.08206 L*atm/(K*mol)

Rearranging for volume

V = nRT/P

The temperature and number of moles are held constant. This means that this uses Boyle's Law. (The ideal gas law could be manipulated to give us this result when T and n are held constant.)

PV = k

where k is a constant.

This means that

P₁V₁ = k = P₂V₂

P₁V₁ = P₂V₂

(1 atm) * (1 L) = (2 atm) * V₂

V₂ = 0.5 L

The new volume of the gas is 0.5 L.

Explanation:

3 0
2 years ago
Burning gasoline as fuel for a car involves
Nostrana [21]

Thermal energy

mechanical energy

chemical energy

3 0
3 years ago
Read 2 more answers
The chemical equation for a reaction between K2Cr2O7 and HCl is shown. K2Cr2O7 + 14HCl → 2CrCl3 + 2KCl + 3Cl2 + 7H2O
guapka [62]

<u>Answer: </u>The correct answer is Option b.

<u>Explanation:</u>

Oxidizing agent is defined as the chemical reagent which helps the other chemical compound to get oxidized and itself gets reduced. The oxidation state for these species gets reduced because they are undergoing reduction reaction.

For the given chemical equation:

K_2Cr_2O_7+14HCl\rightarrow 2CrCl_3+2KCl+3Cl_2+7H_2O

Oxidation state of Chromium is getting reduced from +6 to +3 and oxidation state of chlorine getting increased from -1 to 0.

Hence, K_2Cr_2O_7 acts like and oxidizing agent because it is itself getting reduced to CrCl_3

Therefore, the correct answer is Option b.

4 0
3 years ago
Which of the following is not a clue that a chemical reaction has taken place? *
DaniilM [7]

Answer:

A pure solid is heated and turns into a pure liquid.

Explanation:

No colour change recorded, only change of state, hence this is a physical change - physical changes I.e. change of state and temperature are not chemical reactions.

7 0
3 years ago
Other questions:
  • What will happen to convection currents in the mantle if earths interior eventually cools down?
    10·1 answer
  • How to know if you can heat a laboratory flask and other glassware?
    7·1 answer
  • BRANLIEST AND 100 POINTS.<br><br> Compare and contrast the structure of yeast and algae.
    7·1 answer
  • Carbon reacts with oxygen to produce carbon dioxide (CO2 (g), Delta.Hf = –393.5 kJ/mol) according to the equation below. Upper C
    8·2 answers
  • The acidic substance in vinegar is acetic acid, HC2H3O2 When 4.00 g of a certain vinegar sample was titrated with 0.200 M NaOH,
    5·1 answer
  • 22.4 liters is the same as:
    8·1 answer
  • THIS IS ON MY UNIT 3 STUDY GUIDE!!!!!!!!!<br><br> What is a covalent compound? Write an example.
    13·1 answer
  • What is the solution to the problem expressed to the correct number of significant figures?
    8·1 answer
  • Exhaling CO2 (Carbon Dioxide) is an example of what?
    12·1 answer
  • Several balls and sticks glued together to represent a molecule
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!