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
OverLord2011 [107]
3 years ago
9

A chemistry student needs 90.0mL of carbon tetrachloride for an experiment. By consulting the CRC Handbook of Chemistry and Phys

ics, the student discovers that the density of carbon tetrachloride is 1.59g*cm3- Calculate the mass of carbon tetrachloride the student should weigh out. Be sure your answer has the correct number of significant digits.
Chemistry
1 answer:
olasank [31]3 years ago
3 0

Answer:

volume = mass/density

 

Here, volume = 80g/1.59gcm-3 → 50.314 cm3

Explanation:

You might be interested in
Ben put 100 ml of water and 100 ml of oil in a beaker then he stirred the mixture. Which is the best way to quickly separate the
RSB [31]

To separate oil from water, add a solution of soluble ionic salt to the solution. Distillation, which involves boiling and condensing the water, is another option, as well as partially freezing the oil and water combination and discarding one-fourth to one-third of the unfrozen water.


4 0
3 years ago
Fatima is designing an advanced graphics card for a next-generation video game system. She needs to be able to precisely control
belka [17]

Answer:

semiconducting and tellurium

Explanation:

u did the test hope this helps babes

3 0
3 years ago
Read 2 more answers
Here is the electron configuration for Magnesium. How many total electrons are in the 2nd energy level?
balandron [24]

Answer:

8 electrons

Explanation:

Magnesium is present on group 2.

It has 2 valence electrons.

Electronic configuration of magnesium:

Mg₁₂ = 1s² 2s² 2p⁶ 3s²

1st energy level contain 2 electrons.(1s²)

2nd energy  level contain 8 electrons. (2s² 2p⁶)

3rd energy level contain 2 electrons. (3s²)

3rs energy level of magnesium is called valence shell. It contain two valance electrons. Magnesium can easily donate its two valance electrons and get stable electronic configuration.

It react with halogens and form salt. For example,

Mg + Cl₂   →   MgCl₂

7 0
3 years ago
4. How many moles of KBr are found in 3 Liters of 0.4 M solution?
Allisa [31]

There are 1.2 moles of KBr found in 3 Liters of 0.4 M solution.

<h3>HOW TO CALCULATE NUMBER OF MOLES?</h3>

The number of moles of a substance can be calculated by multiplying the molarity by the volume.

No. of moles = Molarity × volume

According to this question, 3L of a KBr solution are contained in a 0.4M.

no. of moles = 3L × 0.4M = 1.2moles

Therefore, there are 1.2 moles of KBr found in 3 Liters of 0.4 M solution.

Learn more about no. of moles at: brainly.com/question/14919968

4 0
3 years ago
What is the molarity of 1 mole of HCl in 5 liters of solution?
kicyunya [14]
Molarity = moles of solute(HCl)
                  ------------------------------------
                   volume of the solution
               
                =   1
                    ------
                     5 
               
                =  0.2M.

Hence option B is correct.
Hope this helps!!
5 0
3 years ago
Read 2 more answers
Other questions:
  • Electronegativity tends to increase from left to right across a row, because
    15·1 answer
  • What is the pH of 0.26 M ammonium ion? NH4+(aq) + H2O(1) NH3(aq) + H30* (aq) a. 4.33 b.9.25 c. 3.87 d. 4.92 e. 4.75
    8·1 answer
  • I need a sentence using dune fence
    9·2 answers
  • True or false: in the water cycle, water returns to Earth as condesation, usually in the form of rain or snow.
    15·2 answers
  • Which statement best explains how atmospheric
    5·1 answer
  • How does the periodic table tell me if a element is solid, liquid, gas, or man made?
    11·1 answer
  • EASYYYYYYY!!!!!!!!!!!!!!
    9·1 answer
  • 12. An electrolysis reaction is
    15·1 answer
  • When a small amount of 12 M HNO3(aq) is added to a buffer solution made by mixing CH3NH2(aq) and CH3NH3Cl(aq) , the pH of the bu
    5·1 answer
  • Substance
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!