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
USPshnik [31]
3 years ago
15

Calculate the concentration (m) of sodium ions in a solution made by diluting 80.0 ml of a 0.174 m solution of sodium sulfide to

a total volume of 125 ml.
Chemistry
1 answer:
Andrews [41]3 years ago
5 0

 The concentration   of sodium  ion   is  0.2228 M


     <u><em> calculation</em></u>

find the molarity  of  Na₂S  solution using M₁V₁=M₂V₂  formula

where M₁ = 80.0 ml

          V₁= 0.174 M

         M₂ = ?

         V₂ = 125 ml

make  M₂  the subject   of   the formula   by  diving both side by V₂

M₂= M₁V₁/V₂

M₂ = [ (80.0 ml  x 0.174 M) / 125 ml]= 0.1114 M


write the  equation for dissociation  of Na₂S

Na₂S→ 2Na⁺(aq)   + s²⁻ (aq)


from equation above the  mole  ratio  of  Na₂s : Na⁺  is 1:2 therefore the concentration  of

Na⁺= 0.1114 x 2 =0.2228 M

You might be interested in
What would be the colour of litmus in sodium carbonate?<br> will make brainliest
gregori [183]

Answer:

the color of the litmus paper will turn into blue color because sodium carbonate is basic in nature

7 0
3 years ago
Which is a characteristic of nuclear fusion but NOT nuclear fission?
lisabon 2012 [21]
The answer is B. is the energy source of stars.

Fission is the type of nuclear energy simulated on Earth, as it is the one used to generate electricity. Fusion, on the other hand, is much more complicated to achieve because it requires extremely hot temperatures compared to fission. Fusion involves the combination of two hydrogen atoms to make helium, which releases a lot of energy. Stars such as the sun, exhibit fusion with its very hot temperature and abundant source of hydrogen.
3 0
3 years ago
Read 2 more answers
Burning charocal is that physical or chemical​
Arlecino [84]
Burning charcoal is a chemical reaction called combustion
6 0
3 years ago
Determine the resulting pH when 12mL if 0.16M HCl are reacted with 32 mL if 0.24M KOH.
TEA [102]

Answer:

pH = 13.1

Explanation:

Hello there!

In this case, according to the given information, we can set up the following equation:

HCl+KOH\rightarrow KCl+H_2O

Thus, since there is 1:1 mole ratio of HCl to KOH, we can find the reacting moles as follows:

n_{HCl}=0.012L*0.16mol/L=0.00192mol\\\\n_{KOH}=0.032L*0.24mol/L=0.00768mol

Thus, since there are less moles of HCl, we calculate the remaining moles of KOH as follows:

n_{KOH}=0.00768mol-0.00192mol=0.00576mol

And the resulting concentration of KOH and OH ions as this is a strong base:

[KOH]=[OH^-]=\frac{0.00576mol}{0.012L+0.032L}=0.131M

And the resulting pH is:

pH=14+log(0.131)\\\\pH=13.1

Regards!

3 0
3 years ago
Zinc reacts with aqueous sulfuric acid to form hydrogen gas: zn(s) h2so4(aq) ? znso4(aq) h2(g) in an experiment, 201 ml of wet h
WINSTONCH [101]
The products of reaction are ZnSO4 and H2. Since ZnSO4 is in aqueous form (aq), therefore only H2 and water vapor contributes to the overall total pressure in the system.
Total Pressure = 764 torr = H2 partial pressure + Water partial pressure
Since Water partial pressure is 26.74 torr so,
H2 partial pressure = 737.26 torr = 0.97 atm
3 0
3 years ago
Other questions:
  • 11. What is another name for the transition metals? Group B elements noble gases Group A elements Group C elements
    15·1 answer
  • Will someone actually help me and not just something random
    6·1 answer
  • “Highest molecular motion, highest kinetic energy, no forces of attraction, least dense packaging of molecules.” which state of
    5·2 answers
  • Which of the following is a homogeneous mixture of two or more pure substances? Water alcohol coffee mercury
    9·1 answer
  • When phenolphthalein indicator is added to a colorless solution with a pH of 10, a student observes and concludes that the teste
    8·1 answer
  • Balance the following chemical equation, then answer the following question. C8H18(g) + O2(g) →CO2(g)+H2O(g) How many grams of o
    5·1 answer
  • How has the United States government tried to preserve water sources?
    14·2 answers
  • How many calories are in a dinner containing 3.5x10 ^6 joules
    10·1 answer
  • What is the scientific method and how do you do it
    8·2 answers
  • A 5.00 g sample of al reacts with excess h2so4. what volume of h2 gas is produced at stp
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!