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
ra1l [238]
3 years ago
9

What is the molarity of the solution formed by dissolving 80. G of NAOH(s) into water to give a total volume of 4.00 l

Chemistry
1 answer:
Mrrafil [7]3 years ago
3 0

Answer:

0.5 M

Explanation:

From the question given above, the following data were obtained:

Mass of NaOH = 80 g

Volume of solution = 4 L

Molarity =?

Next, we shall determine the number of mole in 80 g of NaOH. This can be obtained as follow:

Mass of NaOH = 80 g

Molar mass of NaOH = 23 + 16 + 1

= 40 g/mol

Mole of NaOH =?

Mole = mass / molar mass

Mole of NaOH = 80 / 40

Mole of NaOH = 2 moles

Finally, we shall determine the molarity of the solution. This can be obtained as follow:

Mole of NaOH = 2 moles

Volume of solution = 4 L

Molarity =?

Molarity = mole / Volume

Molarity = 2/4

Molarity = 0.5 M

Therefore, the molarity of the solution is 0.5 M.

You might be interested in
Which one of the following statements is correct? View Available Hint(s) Which one of the following statements is correct? Adeni
Dmitrij [34]

Answer:

Adenine forms two hydrogen bonds with thymine;

guanine forms three hydrogen bonds with cytosine

Explanation:

There are three hydrogen bonds between guanine and cytosine. Between adenine and thymine, two hydrogen bonds form. Complementary pairs always include one base of purine and one base of pyrimidine.

4 0
3 years ago
Please help asap and thank you
natulia [17]

Answer:

Metamorphic rock

Explanation:

metamorphic rocks do not get hot enough to melt they just get denser if they did they would become igneous rocks.

7 0
3 years ago
A sulfuric acid solution containing 571.3 g of h2so4 per liter of aqueous solution has a density of 1.329 g/cm3. Part a calculat
loris [4]

Mass percentage of a solution is the amount of solute present in 100 g of the solution.

Given data:

Mass of solute H2SO4 = 571.3 g

Volume of the solution = 1 lit = 1000 ml

Density of solution = 1.329 g/cm3 = 1.329 g/ml

Calculations:

Mass of the given volume of solution = 1.329 g * 1000 ml/1 ml = 1329 g

Therefore we have:

571.3 g of H2SO4 in 1329 g of the solution

Hence, the amount of H2SO4 in 100 g of solution= 571.3 *100/1329 = 42.987

Mass percentage of H2SO4 (%w/w) is 42.99 %

3 0
3 years ago
55. Which Element has a larger radius- Rb or I?
Luden [163]

Rb has larger radius.

5 0
3 years ago
What mass of f2 is needed to produce 120. g of pf3 if the reaction has a 78.1% yield?
lesya692 [45]

write the equation for the reaction

that is 6 F2 +P4 =4 PF3

find the theoretical mass that is

let the theoretical yield be represented by y

theoretical yield = 78.1/100 = 120/y

y= 153.6 grams

find the number of moles of  PF3

moles = mass/molar mass

= 153.6/87.97 =1.746 moles

by use of mole ratio between  F2 :PF3 which is 6:4 the moles of F2 is therefore= 1.746 x 6/4 = 2.62 moles

mass = moles x molar mass

= 1.746 moles x38 g/mol = 99.6 grams

6 0
3 years ago
Other questions:
  • Drag and drop the gases in the atmosphere to order them from most abundant to least abundant.
    13·2 answers
  • what is a diagram showing the forces acting on a coasting bike rider traveling at 25 km/h on a flat roadway
    6·2 answers
  • Explain how science can help you make more informed decisions about what to eat.
    6·2 answers
  • When an atom loses electrons it becomes _____.
    6·2 answers
  • The volume measuring system for a gasoline pump at the service station is calibrated at 20.0°C. If the temperature of the gasoli
    14·1 answer
  • Which gas makes up the highest percentage of air?
    9·1 answer
  • What type of energy is the sum of an object’s potential and kinetic energy?
    14·2 answers
  • An object weighing 10 grams is spinning in a centrifuge such that an acceleration of 13.0 g is imposed to it. The arm connecting
    13·1 answer
  • Organic compounds undergo a variety of different reactions, including substitution, addition, elimination, and rearrangement. An
    12·1 answer
  • Can someone help with b and c ??! Real answers :) 50 POINTS ;)
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!