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
sergij07 [2.7K]
3 years ago
11

If 74.5 m of oxygen are collected at a pressure of 98.0 kPa, what volume will the gas occupy if the

Chemistry
1 answer:
sergey [27]3 years ago
4 0

Answer:

80.8 mL

Explanation:

From the question given above, the following data were obtained:

Initial volume (V₁) = 74.5 mL

Initial pressure (P₁) = 98.0 kPa

Final pressure (P₂) = 90.4 kPa

Final volume (V₂) =?

The final volume of the gas can be by using the Boyle's laws equation as follow:

P₁V₁ = P₂V₂

98 × 74.5 = 90.4 × V₂

7301 = 90.4 × V₂

Divide both side by 90.4

V₂ = 7301 / 90.4

V₂ = 80.8 mL

Thus, the volume of the gas is 80.8 mL

You might be interested in
If you have a balloon inside a car at noon during a hot summer day, the balloon molecules
aleksandrvk [35]

Answer:

it decreases

Explanation:

because its false

6 0
3 years ago
Read 2 more answers
Which one is the least reactive element is<br> Ar<br> Na<br> СІ<br> Mg
34kurt

Answer:

Ar

Explanation:

does not react with anything it has a full electron shell so it does not combine and it is a noble gas

7 0
2 years ago
How many grams of KCl is needed to make .75 L of a 1 M solution of KCl?
Zielflug [23.3K]

Answer:

The answer to your question is 25.9 g of KCl

Explanation:

Data

Grams of KCl = ?

Volume = 0.75 l

Molarity = 1 M

Formula

Molarity = \frac{number of moles}{volume}

Solve for number of moles

Number of moles = Molarity x volume

Substitution

Number of moles = 1 x 0.75

Simplification

Number of moles = 0.75 moles

Molecular mass KCl = 39 + 35.5 = 34.5

Use proportions to find the grams of KCl

                          34.5 g of KCl ----------------  1 mol

                             x                  ----------------  0.75 moles

                            x = (0.75 x 34.5) / 1

                            x = 25.9 g of KCl

3 0
3 years ago
A chemical compound in which ions are held together in a lattice structure by ionic bonds
ehidna [41]

Answer:

Ionic compounds contain ions and are held together by the attractive forces among the oppositely charged ions

Explanation:

Common salt (sodium chloride) is one of the best-known ionic compounds. Molecular compounds contain discrete molecules, which are held together by sharing electrons (covalent bonding).

7 0
2 years ago
Could some some one help with 2 4 5 7 8​
sesenic [268]

Answer:

For number 2, your answer is C.

Explanation:

The nucleus is positively charged because the proton is positive and a neutron is neutral. An electron has a negative charge.

6 0
2 years ago
Other questions:
  • what additional detail supports the point on view in the chart? 1-it doesn’t make sense to have an “honor system.” 2-someone sho
    14·1 answer
  • A 78.0 g sample of an unknown compound contains 12.4 g of hydrogen. what is the percent by mass of hydrogen in the compound?
    11·2 answers
  • Calculate the standard enthalpy change for the reaction at 25 ∘ C. Standard enthalpy of formation values can be found in this li
    6·1 answer
  • How many molecules are contained in a 7.20-g sample of dimethylmercury?
    8·2 answers
  • What would you use the scientific method for
    7·2 answers
  • The energy that is transferred due to a temperature difference
    15·1 answer
  • The chemical equation for the formation of ammonia is unbalanced. 3H2(g) + N2(g) -----&gt; NH3(g) If three molecules of hydrogen
    5·2 answers
  • How would you solve this?
    12·1 answer
  • 9. What type of bond is pictured in the image below?
    14·1 answer
  • In one year old light can travel to how many km??​
    8·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!