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
alisha [4.7K]
3 years ago
10

What is the volume of 67.1g of ethyl alcohol, which has a density of 0.79 g/mL?

Chemistry
1 answer:
Brut [27]3 years ago
8 0

Answer: 84.9 mL

Explanation:

Given the variables in the question, Volume can be derived from the formula for Density;

Density = \frac{Mass}{Volume} \\\\Volume = \frac{Mass}{Density} \\\\Volume = \frac{67.1g}{0.79g/mL} \\\\Volume = 84.9 mL

You might be interested in
Which statement describes how heat flows from the coffee to the part of the spoon in the coffee?
lozanna [386]

Answer:

Heat flows from the coffee to the spoon through conduction

Explanation: I took did the lab assignment

8 0
3 years ago
Read 2 more answers
A sample of quartz is put into a calorimeter (see sketch at right) that contains of water. The quartz sample starts off at and t
pashok25 [27]

Answer:

0.71 J/g°C

Explanation:

Here is the complete question

thermometer A 51.9 g sample of quartz is put into a calorimeter (see sketch at right) that contains 300.0 g of water. The quartz sample starts off at 97.8 °C and the temperature of the water starts off at 17.0 °C. When the temperature of the water stops changing it's 19.3 °C. The pressure remains constant at 1 atm. insulated container water sample Calculate the specific heat capacity of quartz according to this experiment. Be sure your answer is rounded to 2 significant digits. a calorimeter g °C

Solution

Since the temperature of the water increases from 17.0 °C to 19.3 °C, it means that it loses heat. Also, the final temperature of the quartz equals the final temperature of the water 19.3 °C. Since the quartz temperature decreases from 97.8 °C to 19.3 °C it loses heat.

So, heat lost by quartz, Q = heat gained by water, Q'

-Q = Q'

-mc(θ₂ - θ₁) = m'c'(θ₂ - θ₃) where m = mass of quartz = 51.9 g, c = specific heat capacity of quartz, θ₁ = initial temperature of quartz = 97.8 °C, θ₂ = final temperature of quartz = 19.3 °C, m' = mass of water = 300 g, c = specific heat capacity of water = 4.2 J/g °C , θ₃ = initial temperature of water = 17.0 °C, θ₂ = final temperature of water = 19.3 °C

Making c subject of the formula, we have

c = -m'c'(θ₂ - θ₃)/m(θ₂ - θ₁)

Substituting the values of the variables into the equation, we have

c = -300 g × 4.2 J/g °C(19.3 °C - 17.0 °C)/51.9 g(19.3 °C - 97.8 °C)

c = -1260 J/°C(2.3 °C)/51.9 g(-78.5 °C)

c = -2898 J/-4074.15 g°C

c = 0.711 J/g°C

c ≅ 0.71 J/g°C to 2 significant digits

5 0
3 years ago
Steel is the most commonly used metallic material. However, its annual loss due to corrosion is huge. Preventing metal corrosion
Fiesta28 [93]

Answer:

d

Explanation:

elvis's do fhgffgcgxcycy

5 0
3 years ago
Read 2 more answers
Based on what you’ve determined regarding one mole of sand and one mole of water, which statements must be correct? Select all t
Igoryamba

Answer:

-The mole is appropriate only for counting things that are very small.

-One mole is a very large number of something.

-A molecule of water is much smaller than a grain of sand.

Explanation:

8 0
2 years ago
Calculate the oxidation numbers of the elements in this equation<br> 2 Al2O3 → 4 Al + 3 O2
riadik2000 [5.3K]

Explanation:

Answer

Open in answr app

The rule used here is that the algebraic sum of the oxidation numbers of all the atoms a molecule is zero.

Al2O32× ( oxidation number of Al)+3× ( Oxidation number of O )  = 0

2× ( Oxidation number of Al) +3(−2)=0

2× ( oxidation number of Al) +6

∴ Oxidation number of Al =+3

5 0
3 years ago
Other questions:
  • The substance gray tin is found to crystallize in a cubic lattice, with an edge length of 646.0 pm. if the density of solid gray
    7·1 answer
  • A brownish fossil that can be found in rock and contains the remains of an organism is
    13·1 answer
  • After clamping a barrette to a ring stand you noticed that the set up is tippy and unstable what should you do to stabilize the
    9·1 answer
  • H A and H B are both weak acids in water, and HA is a stronger acid than HB. Which of the following statements is correct? Selec
    14·1 answer
  • What are similarities and differences between ionization energy and electron affinity
    15·1 answer
  • Why do the particles in a colloid stay suspended in a liquid, while the particles in a suspension settle out?
    9·1 answer
  • Directions. Carefully review the question. Use the following choices to answer 1 - 10.
    12·1 answer
  • There pls help it’s due in 5 minutes!! Thanks if you do!
    13·1 answer
  • Why is it important to know the weather?
    5·2 answers
  • What is the best definition of physics?
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!