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
strojnjashka [21]
3 years ago
13

If 8.2 L of hydrogen gas at STP are produced in this reaction, how many atoms of sodium react?

Chemistry
1 answer:
kati45 [8]3 years ago
5 0

The reaction is;

2Na + 2H2O → 2NaOH + H2

Answer:

4.4 × 10^(23) atoms

Explanation:

The reaction is;

2Na + 2H2O → 2NaOH + H2

2 moles of Na produces 1 mole of H2 from the equation reaction.

Thus, since 8.2 L of hydrogen gas at STP are produced. And we know that at STP, 1 mole of a gas will have a volume of 22.4 L, and also, We know according to avogadro's number that, 1 mol = 6.02 × 10^(23) atoms, Thus;

8.2 L of H2 × (1 mole of H2/22.4 L) × (2 mole of Na/1 mole of H2) × (6.02 × 10^(23) atoms/1 mole of Na) = 4.4 × 10^(23) atoms

You might be interested in
5. What mass of the following solutes will dissolve in 100 ml of water?
zubka84 [21]

Answer:lol

Explanation:lol

6 0
2 years ago
Read 2 more answers
A compound's molecular formula must always be different than the compound's empirical formula. TRUE FALSE
Juli2301 [7.4K]

Answer: False

Explanation:

Molecular formula is the chemical formula which depicts the actual number of atoms of each element present in the compound.  

Empirical formula is the simplest chemical formula which depicts the whole number of atoms of each element present in the compound.

Example: CH_4 has similar molecular formula and empirical formula as the elements are already present in simplest of the ratios.

C_2H_2 has molecular formula of C_2H_2 but CH as the empirical formula.

5 0
2 years ago
In this Punnett square, what is the probability of the offspring being a heterozygous purple flower
olya-2409 [2.1K]
Heterozygous means A capital P with a lowercase p. There are two purple flowers in the Punnett square with Pp out of 4 possible options. 2/4 is 1/2 which is 50%. So there is a 50% chance of a purple heterozygous flower.
8 0
3 years ago
What is an orbital shell
Lyrx [107]
<span>orbital shell is the</span><span> the circular paths around the nucleus of an atom along which the electrons traverse.</span>
4 0
3 years ago
I will mark brainly , please help !
topjm [15]
...a metal atom will *lose* electrons to form a *positive* cation and a nonmetal atom will *accept* electrons to form an *negative* anion.
7 0
3 years ago
Other questions:
  • What does polar and nonpolar mean in science
    8·2 answers
  • When sulfur trioxide gas reacts with water, a solution of sulfuric acid forms.Express your answer as a balanced chemical equatio
    8·1 answer
  • What volume of 0.05 mol/L HCl is required to react with 5.00g of manganese dioxide according to this equation?
    8·1 answer
  • An object accelerates 7.2 m/s2 when a force of 4.0 newtons is applied to it. What is the mass of the object?
    12·1 answer
  • How many atoms of nitrogen are in 10g of NH4NO3
    12·1 answer
  • Calculate the mass percent of titanium in the mineral ilmenite, FeTiO3. What mass of ilmenite (in grams) is required if you wish
    9·1 answer
  • In the formula for the compound xcl4 the x could represent
    5·1 answer
  • 2. What is the final temperature when a 32.0 g piece of diamond at 33.5°C is heated with 360 J of energy?
    5·1 answer
  • hey i got a question for science its " you throw a rock with a mass of 3.6 kg. the ball leaves your hand with a speed of 10 m/s
    7·1 answer
  • Someone pls help me I will make you brain
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!