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
tamaranim1 [39]
3 years ago
15

The thickness of a 6.00 cm square piece of Al that has a mass of .842 g and a density of 2.70 g/cm^3

Chemistry
1 answer:
lutik1710 [3]3 years ago
7 0
Volume = Mass / Density
Volume =  .842 / 2.70
Volume = .31185 cubic centimeters
Aluminum square * depth = .31185 cubic centimeters
6 * 6 * depth = .31185 cubic centimeters
depth = (.31185 cubic centimeters) / 36
<span><span><span>depth = 0.0086625514 centimeters

(That must be aluminum foil.)

</span> </span></span>





You might be interested in
describe how 250 cm³ of 0.2 mol/dm³ H2SO4 could be prepared from 150 cm³ of 1.0mol/dm³ stock solution of the acid​
Reptile [31]

Answer:

Explanation:

250 cm^3 of 0.2 moldm-3 H2SO4 can be prepared from 150cm^3 of 1.0 moldm^-3 by dilution.

150cm^3 of the 1.0 moldm^-3 stock solution is measured out using a measuring cylinder and transferred into a 250 cm^3 standard volumetric flask and made up to mark. The resulting solution is now 250cm^3 of 0.2 moldm-3 H2SO4.

5 0
2 years ago
(a) Calculate the mass of CaCl2·6H2O needed to prepare 0.125 m CaCl2(aq) by using 500. g of water. (b) What mass of NiSO4·6H2O m
Alinara [238K]

Answer:

(a) 13.7 g.

(b) 28.91 g.

Explanation:

  • molality (m) is the no. of moles of solute dissolved in 1.0 kg of solvent.

∴ m = (no. of moles of solute)/(mass of water (kg))

<em>∴ m = (mass/molar mass of solute)/(mass of water (kg)).</em>

<em />

<u><em>(a) Calculate the mass of CaCl₂·6H₂O needed to prepare 0.125 m CaCl₂(aq) by using 500. g of water.</em></u>

∵ m = (mass/molar mass of CaCl₂·6H₂O)/(mass of water (kg)).

m = 0.125 m, molar mass of CaCl₂·6H₂O = 219.0757 g/mol, mass of water = 500.0 g = 0.5 kg.

∴ 0.125 m = (mass of CaCl₂·6H₂O / 219.0757 g/mol)/(0.5 kg).

∴ mass of CaCl₂·6H₂O = (0.125 m)(219.0757 g/mol)(0.5 kg) = 13.7 g.

<u><em>(b) What mass of NiSO₄·6H₂O must be dissolved in 500. g of water to produce 0.22 m NiSO₄(aq)?</em></u>

∵ m = (mass/molar mass of NiSO₄·6H₂O)/(mass of water (kg)).

m = 0.22 m, molar mass of NiSO₄·6H₂O = 262.84 g/mol, mass of water = 500.0 g = 0.5 kg.

∴ 0.125 m = (mass of NiSO₄·6H₂O / 262.84 g/mol)/(0.5 kg).

∴ mass of NiSO₄·6H₂O = (0.22 m)(262.84 g/mol)(0.5 kg) = 28.91 g.

6 0
3 years ago
Because of river discharge, large changes in ocean salinity often occur __.
Lorico [155]
I’m guessing it would be A because the river discharge tends to gather near coastlines where the river ends
5 0
3 years ago
10. Hydrogen and sulfur combine to make hydrogen sulfide.
Genrish500 [490]

Answer:

H₂S

Explanation:

8 0
3 years ago
How many atoms does the compound 2Zn(OH)2 have? 2 at the end is subscript.
labwork [276]
10 atoms in total
4 atoms of H
4 atoms of O
2 atoms of Zn
Hope this helps :)
7 0
3 years ago
Other questions:
  • If you have 5 grams of carbon and 6 grams of hydrogen and you want to make methane, what is reaction limiting?
    5·1 answer
  • Which three quantum numbers are associated with the 4d orbital?
    5·1 answer
  • One of the steps in the commercial process for converting ammonia to nitric acid is the conversion of NH3 to NO: 4NH3 (g) 5O2 (g
    5·1 answer
  • What forensic technique is seen as reliable? Why is this? what makes this technique more reliable and accurate than other techni
    10·1 answer
  • How are the properties of sodium chloride different than sodium and chlorine
    8·1 answer
  • One difference between mixtures and pure substances is that
    8·2 answers
  • An atom contains 31 protons,39neutrons and 31 electrons.Identify the mass number of this atom​
    9·1 answer
  • If 4.52g of the precipitate is formed, how many grams of sodium chloride reacted?​
    12·1 answer
  • Air is classified as a mixture. What statement must be true about air? (4D)
    9·1 answer
  • Explain why crushed garlic has more flavor when put in food than a whole clove of garlic.
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!