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
Otrada [13]
3 years ago
5

How many grams of sodium metal must be introduced to water to produce 3.3 grams of hydrogen gas?

Chemistry
1 answer:
Cloud [144]3 years ago
8 0

Answer:

The mass of sodium metal that must be introduced to water to produce 3.3 grams of hydrogen gas, H₂, is approximately 18.82 grams of sodium metal

Explanation:

The given mass of hydrogen gas produced = 3.3 grams

The molar mass of hydrogen gas, H₂ = 2.016 g/mol

The number of moles of hydrogen gas in 3.3 grams of H₂, 'n', is given as follows;

n = Mass/(Molar mass)

n = 3.3 g/(2.016 g/mol) = 1.63690476 moles of H₂

The reaction of sodium and water can be written as follows;

2Na + 2H₂O → 2NaOH + H₂ (g)

2 moles of sodium produces 1 mole of hydrogen gas, H₂

Therefore;

1.63690476/2 moles of sodium will produce 1.63690476 moles of hydrogen gas, H₂

The molar mass of sodium, Na ≈ 22.989 g/mol

The mass of 1.63690476/2 moles of sodium, 'm', is given as follows;

m = 1.63690476/2 moles × 22.989 g/mol ≈ 18.8154018 grams ≈ 18.82 grams

The mass of sodium that will produce 3.3 grams of hydrogen, m ≈ 18.82 grams of sodium metal.

You might be interested in
Is chromium a transition metal
oksano4ka [1.4K]
No it is not

hope  this helped


7 0
3 years ago
Read 2 more answers
Calculate the number of grams of nitrogen dioxide that are produced from 4 moles of nitric oxide
miv72 [106K]

Answer:

hope this help by the way found off of yahoo

Explanation:

Calculate the number of grams of nitrogen dioxide that are produced from

4 moles of nitric oxide.

2NO(g) + O2(g) -->2NO2(g)

I really need help with this... I need to know how to work it too... I can balance it out but not sure about grams...  This is it balanced out with 4 moles of nitric oxide

4NO(g) + 2O2(g) ->4NO2(g) please help and explain i want to learn this

6 0
3 years ago
PLS HELP Students in a chemistry class added 5 g of Zinc (Zn) to 50 g of hydrochloric acid (HCl). A chemical reaction occurred t
Vitek1552 [10]

Answer: In simplest case mass of reactants is same as mass of products.

Without thinking this question deeper, mass of ZnCl2 would be 49, but..

Explanation: Reaction should be  Zn + 2 HCl ⇒ ZnCl2 + H2

Amount of zinc is  5 g / 65,38 g/mol = 0,076476 mol and amount

of Hydrogen Chloride is 50 g / 36.458 g/mol = 1,371 mol.

Althought HCl is needed 0.152 moles, zinc is an limiting reactant.

So it is possible to produce only 0.076476 mol Hydrogen and its mass

is 0.154 g.  Mass of ZnCl2 would be 0.076476 mol · (65.38 + 2·35.45) =

 10.42 g

4 0
2 years ago
Which lists mixtures, in order, from the smallest particles to the largest particles?
Kisachek [45]

Answer:

A. Solution, Colloid, Suspension

Hope i could help

4 0
3 years ago
The table below shows the dimensions of two colored cubes.
Vedmedyk [2.9K]

Uhhh i think it might be c blue because it has more volume and less amount of matter

4 0
3 years ago
Read 2 more answers
Other questions:
  • Calculate the pressure in the atmosphere of 2.00 moles of helium gas in a 10.0 L container at 27 C
    8·1 answer
  • Please help me with this
    11·2 answers
  • How many grams of aluminum sulfate form when 3.90 grams of aluminum is placed in 13.65 grams of sulfuric acid?
    14·2 answers
  • Whats the name of S4O6
    10·2 answers
  • When electrons are added to the outter most shell of carbon atom it forms
    6·1 answer
  • Which of the following is NOT true about relative dating?
    12·1 answer
  • Please select the word from the list that best fits the definitions
    14·1 answer
  • Plz help, if you don't know the answer please don't answer it
    5·1 answer
  • Explain why aluminum does not react with potassium nitrate (KNO3) although it reacts with copper nitrate
    7·1 answer
  • Why does the Periodic Table have that separated part (lanthanides and actinides) at the bottom?
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!