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
sergij07 [2.7K]
3 years ago
15

How much water needs to be added

Chemistry
1 answer:
Olegator [25]3 years ago
8 0

Answer:

165 ml

Explanation:

We are given;

Initial volume; V_a = 55 ml

Initial molarity; M_a = 3 M

Molarity of desired solution; M_b = 0.75 M

Volume of desired solution; V_b = (55 + x) ml

Where x is the volume of water to be added.

To solve for V_b, we will use the equation ;

M_a•V_a = M_b•V_b

V_b = (M_a•V_a)/M_b

V_b = (3 × 55)/0.75

V_b = 220 mL

Thus;

(55 + x) = 220

x = 220 - 55

x = 165 mL

You might be interested in
In Latin, the word arthropod means jointed foot.
lord [1]

Answer: a pair of antennae

Explanation:

6 0
2 years ago
PLS HELP ASAP!!!!! IM TIMED!!!!!
Rainbow [258]

1. compound

 2. element  

   3. element

4. compound  

5. compound

6. element

7. compound

     8 element

                                                                                                                   

3 0
3 years ago
How many hydrogen atoms in the following chemical formula ? <br> NH4OH
djyliett [7]

Answer:

5

Explanation:

NH4OH

The subscript gives the info that there are 4 hydrogen atoms but there is another H in the formula so you add them up.

5 0
3 years ago
Isotopes of an element contain the same number of protons but different numbers of _________________.
sp2606 [1]
Neutrons is your answer

7 0
3 years ago
What four factors influence the rate of a homogeneous reaction.
Anika [276]
1) concentration or partial pressure of species
involved. 2) temperature • 3) presence of catalyst
4) nature of reactants.
5 0
2 years ago
Other questions:
  • A 2.050×10−2 MM solution of glycerol (C3H8O3C3H8O3) in water is at 20.0∘C∘C. The sample was created by dissolving a sample of C3
    11·1 answer
  • A can of chicken broth contains 340 mg of sodium chloride in 286.7 g of broth. What is the percent by mass of sodium chloride in
    15·2 answers
  • Which is the best metal to use in an alloy to increase its electrical conductivity?
    8·2 answers
  • Que tipo de uniones existen EN QUIMICA?
    14·1 answer
  • Match the following associations. Exothermic or endothermic
    7·1 answer
  • Reason the Carbon Cycle is necessary to sustain life on Earth
    7·1 answer
  • when obtaining energy, why mushrooms are more like elephants eating and not like dandelions absorbing sunlight.
    5·1 answer
  • Mendeléyev diseño su tabla casi al mismo tiempo que un químico alemán llamado Julius Lothar Meyer, quien la publicó un año despu
    10·1 answer
  • A gene is being copied to be passed from a parent to an offspring. While being copied from the parent, a
    12·1 answer
  • Which is more concentrated 200 ML of an 8-M NaOH solution or 500 mL of a 4-M NaOH solution
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!