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
Olenka [21]
3 years ago
13

BRAINLIST

Chemistry
1 answer:
garri49 [273]3 years ago
3 0
A) divide by 100. A meter is 100 centimeters so that’s how you can tell
You might be interested in
A student has two solutions of a substance. Solution-1: 25M, 400mL, and Solution-2: 30M, 300 ml. What is the molarity of the fin
castortr0y [4]

Answer:

The molarity of the final solutions if these two solutions are mixed is 27.14 \frac{moles}{L}

Explanation:

Yo know:

  • Solution-1: 25M, 400mL
  • Solution-2: 30M, 300 mL

Molarity being the number of moles of solute per liter of solution, expressed by:

Molarity (M)= \frac{number of moles}{volume}

You can determine the number of moles that are mixed from each solution as:

Number of moles= Molarity*Volume

So, being 1 L=1000 mL, for each solution you get:

  • Solution-1: being 0.400 L=400 mL ⇒ 25 M* 0.400 L= 10 moles
  • Solution-2: being 0.300 L=300 mL ⇒ 30 M* 0.300 L=  9 moles

When mixing both solutions, it is obtained that the volume is the sum of both solutions:

Total volume= volume solution-1 + volume solution-2

and the number of total moles will be the sum of the moles of solution-1 and solution-2:

Total moles= moles of solution-1 + moles of solution-2

So the molarity of the final solution is:

Molarity (M)= \frac{moles of solution 1 + moles of solution 2}{Volume solution 1 + Volume solution 2}

In this case, you have:

  • moles of solution-1: 10 moles
  • moles of solution-2: 9 moles
  • volume solution-1: 0.400 L
  • volume solution-2: 0.300 L

Replacing:

Molarity (M)=\frac{10 moles + 9 moles}{0.400 L + 0.300 L}

Solving:

Molarity (M)=\frac{19 moles}{0.700 L}

Molarity= 27.14 \frac{moles}{L}

<u><em>The molarity of the final solutions if these two solutions are mixed is 27.14 </em></u>\frac{moles}{L}<u><em></em></u>

4 0
3 years ago
Three isotopes of sulfur are sulfur-32, sulfur-33, and sulfur-34. write the complete symbol for each isotope, including the atom
Maurinko [17]
Sulfur is an element in the periodic table that has a chemical symbol of S. This element is the 16th element in periodic table. This means that the atomic number or number of protons in the nucleus of the atom is equal to 16.

The number following the name of the element is the mass number. The following are the complete symbol that are arranged as follows:
 chemical symbol - atomic number - mass number

*Sulfur-32
         S - 16 - 32

*Sulfur-33
        S - 16 - 33

*Sulfur-34
        S - 16 - 34
8 0
3 years ago
Read 2 more answers
In the Energy and Specific Heat lab, how should the water bath be stabilized over the heat source? Select one:
Reika [66]

Answer:

c

Explanation:

5 0
3 years ago
Read 2 more answers
What does it mean when a reaction is spontaneous apex?
natima [27]
A reaction that is spontaneous means that it can produce products without the supply of energy. The total energy from the reactants reached the activation energy that allow the reaction proceed. An example of this is the decay of a diamond into graphite occuring readily.
7 0
3 years ago
Which contains the particles that are vibrating fastest?
Soloha48 [4]
A. The hotter things get the more energy the particles have.
6 0
3 years ago
Read 2 more answers
Other questions:
  • a sample of an oxide of iron was reduced to iron by heating with hydrogen. the mass of iron obtained was 4.35g and mass of water
    5·1 answer
  • The density of Jell-O® is 1.56 g/cm3. A suite in a dorm can hold 6.35 × 107 g of Jell-O®. What is the volume of the suite in ft3
    12·1 answer
  • When the pressure that a gas exerts on a sealed container changes from 22.5 psi to psi the temperature changes from 110 c to 65.
    14·1 answer
  • 38.0 mL of a 0.026 M solution of HCl is needed to react completely with a 0.032 M NaOH solution. Calculate the number of moles o
    5·1 answer
  • Please answer this, <br>Determine the weight of CaO produced by heating 70 g of CaCO3
    7·1 answer
  • The density of water is 1.00 g/cm3. The density of ice is 0.92 g/cm3. By what percent is the volume increased when water is froz
    8·2 answers
  • An example of an extensive property of matter is?<br>temp<br>pressure<br>mass<br>hardness
    9·1 answer
  • Which formula contains a metal and a nonmetal? SO2 MgO CO H2O
    15·2 answers
  • How are the molecules attached to each others?
    8·1 answer
  • What happens to a 8 L volume of gas as you love a pressure of 3 atm to 4 atm? Use the correct gas law to determine the new volum
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!