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
olganol [36]
3 years ago
7

What mass of solute is needed to prepare each of the following solutions?

Chemistry
1 answer:
noname [10]3 years ago
5 0

Answer:

a. 21.7824 g

b. 0.2362 g

c. 31.5273 g

Please see the answers in the picture attached below.

Explanation:

Please see the step-by-step solution in the picture attached below.

Hope this answer can help you. Have a nice day!

You might be interested in
PLEASEEE HELPPP I SUCK AT CHEM :(
Luda [366]

Answer:

a) H2SO4 + 2KOH -> 2H2O + K2SO4

b) 9.809 ml

Explanation:

Number of Moles = Mass/ Molar Mass

Therefore: Mass = Number of moles * Molar Mass

--------------------------------------------

Molar mass of H2SO4:

H2= 2.02

S= 32.07

O4= 64

--------------------------------------------

H2SO4 has the molar mass of 98.09

--------------------------------------------

the Moles of H2SO4 is given to be 0.100M

Therefore:

Mass= 98.09*0.1

          = 9.809g

---------------------------------------------------

Assuming that 1 g= 1 ml, the volume of sulfuric acid is 9.809 ml.

7 0
3 years ago
A hot metal plate at 150°C has been placed in air at room temperature. Which event would most likely take place over the next fe
Inga [223]

Answer:

The air molecules that are surrounding the metal will speed up, and the molecules in the metal will slow down.

Explanation:

As molecules heat they begin to move faster. The heat from the metal plate will make the molecules at room temperature move faster. And the room temperature makes the hot place cool, making the hot plate molecules slow down.

To visualize this, you can use this link

https://phet.colorado.edu/en/simulations/gas-properties

click the play button to activate the activity

7 0
2 years ago
Please help me with this question
Inessa05 [86]

From the calculation, the concentration in parts per billion is 6 ppb.

<h3>What is ppb?</h3>

The term ppb refers to the concentration of a substance in parts per billion. We obtain the ppb using the formula;

Mass of solute/ Mass of solution * 10^9

Now, 1L = 1000cm^3 = 1000 g

The concertation in ppb = 6 * 10^-6 g/1000 g * 10^9

= 6 ppb

Learn more about parts per billion:brainly.com/question/9179966

#SPJ1

4 0
2 years ago
Three examples why cell division is important
kifflom [539]

Answer:

Cell division is important for growth,maintenance of proper chromosome number,wound healing

Explanation:

1 Cell division results in the formation of new cells which further undergo division to form new cells and so forth.Thus many cells are formed which are organized in tissues.Tissues then builds up organs and a number of organs builds up total body.

2 Cell division helps to maintain its chromosome number within the newly formed daughter cells.

3 Division of cells result in the formation of new cells in the site of wound and this accumalation of new cells in the wound region replace damaged and dead cells thus ultimately results in wound healing.

3 0
3 years ago
In a metallic bond, electrons
kobusy [5.1K]
The answer would be c
8 0
3 years ago
Other questions:
  • How would the moon appear from earth if the moon did not rotate?
    10·1 answer
  • the element weighed 3.555 grams when it was burned in oxygen an oxide compound was produced. the product mass was 4.666 grams. W
    8·1 answer
  • Steroids are made up of what type of molecule?
    15·1 answer
  • The empirical formula for a compound is c2h5 and its formula mass is 58 amu. what is its molecular formula?
    15·2 answers
  • Distillation is a _____________ separation technique.
    12·2 answers
  • Please help 50 points A balanced chemical equation has _________ number of atoms for each element on both sides of the equation.
    8·1 answer
  • Uses of noble gases with description please. thanks
    9·1 answer
  • A sample of hydrogen gas contains 4.8 x 1026 molecules of hydrogen. How many moles of hydrogen is this?
    13·1 answer
  • What are levers used for? (science)
    13·1 answer
  • A student developed a chromatogram and found that the cluent front traveled 94 mm and the Zn²+ cation traveled
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!