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
Vlad1618 [11]
4 years ago
6

How many ions are there in 0.187 mol of Na+ ions

Chemistry
2 answers:
kondaur [170]4 years ago
4 0
Best Answer
1 mole of a substance contains 6.022x10^23 "units" of that substance.

So 0.187 mol of Na+ is 1.13x10^23 ions (6.022x10^23 x 0.187).
Greeley [361]4 years ago
3 0

Answer : The number of ions present in 0.187 mole of sodium ions are, 1.163\times 10^{23}

Solution : Given,

Moles of sodium ions = 0.187 moles

As we know that

1 mole of substance contains 6.22\times 10^{23} number of ions

So, 0.187 moles of substance contains 0.187\times (6.22\times 10^{23})=1.163\times 10^{23} number of ions

Therefore, the number of ions present in 0.187 mole of sodium ions are, 1.163\times 10^{23}


You might be interested in
In which state(s) of matter are the<br> particles free to move at Gut relative to<br> one another?
Colt1911 [192]
The answer is gas only.
hope this helps!
8 0
3 years ago
Make the equations for the reactions between calcium and hydrochloric acid, name the products.
Goryan [66]

Answer:

Calcium carbonate reacts with hydrochloric acid to form carbon dioxide gas. 2HCl (aq) + CaCO 3(s) CaCl 2 (aq) + CO 2(g) + H 2 O (l).

3 0
3 years ago
If the temperature of the water were 0°C and the pressure was above 760 mm Hg, what phase would the water be in?
viva [34]
I would say the answer is gas.
4 0
2 years ago
Which of these half-reactions represents reduction?
gogolik [260]

Answer: The half-reactions represents reduction are as follows.

  • Cr_{2}O^{2-}_{7} \rightarrow Cr^{3+}
  • MnO^{-}_{4} \rightarrow Mn^{2+}

Explanation:

A half-reaction where addition of electrons take place or a reaction where decrease in oxidation state of an element  takes place is called reduction-half reaction.

For example, the oxidation state of Cr in Cr_{2}O^{2-}_{7} is +6 which is getting converted into +3, that is, decrease in oxidation state is taking place as follows.

Cr_{2}O^{2-}_{7} + 3 e^{-} \rightarrow Cr^{3+}

Similarly, oxidation state of Mn in MnO^{-}_{4} is +7 which is getting converted into +2, that is, decrease in oxidation state is taking place as follows.

MnO^{2-}_{4} + 5 e^{-} \rightarrow Mn^{2+}

Thus, we can conclude that half-reactions represents reduction are as follows.

  • Cr_{2}O^{2-}_{7} \rightarrow Cr^{3+}
  • MnO^{-}_{4} \rightarrow Mn^{2+}
3 0
3 years ago
Doing Science plz help
Murljashka [212]

Answer:

My guess is b or c but its robably wrong

Explanation:

I just also need points sorry <3

4 0
3 years ago
Read 2 more answers
Other questions:
  • The successive ionization energies of a certain element are I1 = 589.5 kJ/mol, I2 =1145 kJ/mol, I3= 4900 kJ/mol, I4 = 6500 kJ/mo
    8·2 answers
  • Which formula can be used to express the law of conservation of momentum, where p = momentum? pi = pf pi &gt; pf pi &lt; pf pi ≠
    10·2 answers
  • The voltage of a battery can be changed by altering the _____
    12·1 answer
  • A 5.00 l sample of a gas exerts a pressure of 1040 torr at 50.0°c. In what volume would the same sample exert a pressure of 1.00
    15·1 answer
  • Which formula represents a convalent compound<br><br><br>. H2O2<br><br>.CaO<br><br>.MgS<br><br>.NaCl
    14·2 answers
  • Suggest a suitable electrolyte that could be used if the iron ring is to be plated with silver​
    11·1 answer
  • An archaeologist discovers an ancient wooden bowl. which isotope would most likely be used to determine its age?
    10·2 answers
  • En el enlace covalente entre azufre y carbono (6 y 4 electrones en su ultima capa respectivamente) la molécula tendrá ?
    11·1 answer
  • Explain why, when performing stoichiometric calculations, it is
    14·1 answer
  • A package of chocolate instant pudding contains 2640 mg of sodium. how many grams of sodium are in the pudding?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!