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
QveST [7]
2 years ago
11

Determine the mass of the following samples (remember mass => grams)

Chemistry
1 answer:
kakasveta [241]2 years ago
5 0

Mass is the amount of content available in the matter. The mass of the moles of samples given are

2 moles Co = 117.86 g Co

5 moles H2 =  10.10 g  H₂

2.1 moles H₂O = 37.84 g  H₂O

<h3>What is a mole?</h3>

A  mole can be atoms or molecules or ions or any substance.

The mass of one mole of Co is 58.93 g.

Then, 2 moles of Co will be 2 x 58.93 g = 117.86 g Co

The mass of one mole of H₂ is 2.02 g.

Then, 5 moles of  H₂ will be 5 x 2.02 g =  10.10 g  H₂

The mass of one mole of H₂O is 18.02 g .

Then, 2.1 moles of  H₂O will be 2.1 x 18.02 g =  37.84 g  H₂O

Thus, the mass of the following samples in grams

2 moles Co = 117.86 g Co

5 moles  H₂=  10.10 g  H₂

2.1 moles H₂O = 37.84 g  H₂O

Learn more about mole.

brainly.com/question/26416088

#SPJ1

You might be interested in
An aqueous magnesium chloride solution is made by dissolving 7.15 moles of MgCl2 in sufficient water so that the final volume of
irinina [24]

Answer:

2.86mol/L

Explanation:

Given parameters:

Number of moles of MgCl₂  = 7.15moles

Volume of solution  = 2.50L

Unknown:

Molarity of the MgCl₂ solution = ?

Solution:

The molarity of a solution is the number of moles of solute found in a given volume.

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

 Insert the parameters and solve;

   Molarity  = \frac{7.15}{2.5}   = 2.86mol/L

4 0
3 years ago
In which location would you expect to find the greatest species diversity?!
Crank
I believe the answer is Canada!
5 0
3 years ago
How does a battery become depleted or out of charge? * -the number of protons and electrons at both terminals are not equal -the
kompoz [17]

Answer:

the number of protons and neutrons at both terminals are equal

Explanation:

When the number of positive charge and negative charge are both equally the terminal, it becomes neutral and out of charge, because first it undergo enough chemical reaction and there is no remaining tendency for positive and negative charges to get separated. When this tendency dies, the battery also will run out of charge.

3 0
2 years ago
The molar mass of sodium of chloride
wariber [46]

Answer:

22.989769 u.

Explanation:

pls vote.......

5 0
3 years ago
Read 2 more answers
In which orbitals would the valence electrons for selenium (Se) be placed?
RSB [31]
Selenium falls in the same column with oxygen therefore it has the same number of valence electrons with oxygen which is 6. It fills the 3d orbital but only 4s and 4p are counted. The electronic configuration is [Ar]3d^10 4s^2.
8 0
3 years ago
Read 2 more answers
Other questions:
  • 4HF(g)+SiO2(s)→SiF4(g)+2H2O(l)
    14·1 answer
  • Given the reaction below, which is the oxidized substance?
    15·2 answers
  • Definition: This is an important principle of the scientific method in which an experiment can accurately be reproduced by an in
    11·1 answer
  • Are the bonds that chlorine forms with sodium (to form NaCl) and with carbon (to form CCl4) the same in both compounds?
    5·1 answer
  • A little boy has placed his pet squirrel into a balloon with a volume of 3L at a pressure of 1.0 atm. If the boy takes his pet s
    11·1 answer
  • A kilometer is much greater in distance then a millimeter true or false
    13·2 answers
  • Why is the electronic stucture written as 1s 2s 2p 3s 3p 4s. ... ?​
    14·1 answer
  • What impact did the Spanish have on the region of South America?
    11·1 answer
  • Which element is likely to be the best conductor of electricity?
    7·2 answers
  • 112 g of aluminum carbide react with 174 g water to produce methane and aluminum hydroxide in the reaction shown below.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!