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
Vinil7 [7]
3 years ago
6

Calculate these masses.

Chemistry
2 answers:
Alex3 years ago
8 0
A) mass / volume = density
m/6.00cm3 = 13.5939g/cm3
m = 13.5939g/cm3 • 6.00cm3
m = 81.6g

B) mass / volume = density
m/25.0cm3 = 0.702g/cm3
m = 0.702cm3 • 25.0g/cm3
m = 17.6g

1mL = 1cm3
RUDIKE [14]3 years ago
6 0

Answer:

(a) m = 81.6g

(b) m = 17.6g

Explanation:

Hello,

In this case, we consider the formula of density and solve for the required mass in each statement:

\rho =\frac{m}{V} \\m=\rho *V

In such a way we compute them as:

(a) m=6.00cm^3*13.5939g/cm^3=81.6g

(b) m=25.0 mL*\frac{1cm^3}{1mL}*0.702g/cm^3 =17.6g

Best regards.

You might be interested in
How many atoms are there in 10.2 moles of Phosphorous?​
nikdorinn [45]

There are 2.06 x 10²⁴ atoms

<h3>Further explanation </h3>

The mole is the number of particles (atoms, molecules, ions)contained in a substance

1 mol = 6.02.10²³  particles

Moles can also be determined from the amount of substance mass and its molar mass

  • number of atoms :

\tt 10.2\times 6.02\times 106{23}=2.06\times 10^{24}

5 0
3 years ago
Which pair of elements form an ionic bond with
KATRIN_1 [288]

Answer:

Yes Both A) KCL and D) HCL are correct...

3 0
2 years ago
Read 2 more answers
What kind of bond is formed when lithium and fluorine combine to form lithium fluoride?
cupoosta [38]

Answer:

ionic bond

Explanation:

4 0
3 years ago
Read 2 more answers
The indicator methyl red has different molecular structures at high and low pH.
Novosadov [1.4K]

Answer:

a. True

Explanation:

Methyl red is an indicator widely used in quality control of oxides as Zinc oxide in the titration with sulfuric acid.

As is used in titrations of acid-base reactions the indicator change in colour. Is red when the pH < 4.4 (Acidic Solutions) and is yellow when pH > 6.2 (Neutral-Basic solutions).

A change in colour means the structure of the indicator is changing with pH. Thus, the answer is:

<h3>a. True </h3>

6 0
3 years ago
Describe how you can figure out how many grams of a COMPOUND if you know how many moles there
____ [38]
Divide the mass of the compound in grams by the molar mass you just calculated. The answer is the number of moles of that mass of compound. For example, 25 grams of water equals 25/18.016 or 1.39 moles.
4 0
2 years ago
Other questions:
  • A redox reaction always involves
    5·1 answer
  • What is the total number of electron pairs shared between the two atoms in an 02 molecule
    13·1 answer
  • An ideal gas originally at 0.85 atm and 66°C was allowed to expand until its final volume, pressure, and temperature were 94 mL,
    10·1 answer
  • What is starch test?​
    15·2 answers
  • What is the proper safety response to a trash-can fire in a lab?
    9·2 answers
  • An accident happens in the lab of Professor Utonium, and a radioactive element X is released in the form of a gas at around 4:00
    8·1 answer
  • Each of the following reactions is allowed to reach equilibrium in a sealed container. For which of the reactions could you shif
    10·2 answers
  • In most mirrors, the virtual image appears to come from behind the mirror. True False
    5·1 answer
  • the isotope 146c has a half life of 5730 years. what fraction of 146c in a sample with mass ,m, after 28650 years
    8·1 answer
  • Balance the equations for the formation of cations from neutral atoms
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!