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
bezimeni [28]
2 years ago
11

At STP how many molecules of nitrogen gas are in 224 L?

Chemistry
1 answer:
NeTakaya2 years ago
6 0

Answer:

6.022×10²² molecules

Explanation:

Given data:

Volume of nitrogen = 224 L

Pressure = standard = 1 atm

Temperature = standard = 273 K

Number of molecules = ?

Solution:

PV = nRT

1 atm × 224 L = n × 0.0821 atm.L/mol.K × 273 K

224 atm.L = n ×22.41 atm.L/mol

n = 224 atm.L/22.41 atm.L/mol

n = 10 mol

1 mole contain 6.022×10²³ molecules

10 mol×6.022×10²³ molecules/ 1 mol

60.22×10²³ molecules

6.022×10²² molecules

You might be interested in
A 1.45 g sample of phosphorus burns in air and forms 2.57 g of a phosphorus oxide. Calculate the empirical formula of the oxide.
bija089 [108]

Answer:

P2O3

Explanation:

Firstly, we know that the phosphorus would absorb oxygen from air to form its oxide. We already know the mass of the phosphorus, we can get the mass of the oxygen by subtracting the mass of the phosphorus from the mass of the oxide.

The mass of the oxygen is 2.57 - 1.45 = 1.12g

From here, we covert these masses to moles by dividing by the atomic masses of phosphorus and oxygen respectively.

The atomic mass of phosphorus is 31 while that of oxygen is 16.

P = 1.45/31 = 0.046774193548

O = 1.12/16 = 0.07

We now divide by the smallest which is that of phosphorus.

P = 0.046774193548/ 0.046774193548= 1

O = 0.07/ 0.046774193548 = 1.5

We then multiply the answers by 2 for conversion to whole numbers. Making P = 2 and O = 3

The empirical formula is thus P2O3

5 0
3 years ago
Is sand an element or a compound?
Romashka-Z-Leto [24]
Neither

its a mixture
7 0
3 years ago
Why do ionic borids form between metal and no metals
mamaluj [8]
Nonmetals don’t have enough electronegativity to transfer electrons so the electrons are shared between them
4 0
3 years ago
40.0L of N₂ gas are in a sealed container at STP.How many moles of N₂ are present?9 mol
Vinvika [58]

Explanation:

We have to find the number of moles of N₂ that are present in a sample that has a volume of 40.0 L at STP.

STP means Standard Conditions of Temperature and Pressure. These conditions are 273.15 K and 1 atm. We know that 1 mol of N₂ will occupy 22.4 L. We can use that ratio to find the answer to our problem.

1 mol of N₂ = 22.4 L

moles of N₂ = 40.0 L * 1 mol/(22.4 L)

moles of N₂ = 1.79 mol

Answer: 1.79 moles of nitrogen are present.

8 0
1 year ago
____________________ 2. what kind of solution contains more hydrogen ions than hydroxide ions?
JulijaS [17]
The answer is basic solution
HOPE THIS HELPED
8 0
3 years ago
Other questions:
  • Redox reactions can be written as two half-reactions, focusing on the gain or loss of electrons by one of the chemical substance
    14·1 answer
  • What is the volume of a cube with side length of 5.00 cm?<br> mL
    10·1 answer
  • How many moles of acetylene gas occupies a volume of 3.25 liters at STP?
    10·2 answers
  • The specific heat capacity of silver is 0.235 J/g ∙ K. Its melting point is 962 °C, and its enthalpy of fusion is 11.3 kJ/mol. W
    13·1 answer
  • A
    9·1 answer
  • The net reaction of the calvin cycle is the conversion of co2 into the three-carbon sugar g3p. along the way, reactions rearrang
    5·1 answer
  • What is the periodic table element for Iron?
    6·2 answers
  • Please answer the question that is attached to this question. It will be a BIG help for my homework if you give a proper explana
    14·1 answer
  • 3. Write balanced ionic equations to show the dissolution of the following compounds in water: a) magnesium chloride​
    6·1 answer
  • Iodine and tellurium were swapped by Mendeleev in the Periodic Table so that they were not in order of atomic weight. State the
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!