What is the volume of a tank of nitrogen if it contains 17 moles of nitrogen at 34 C under 12,000 Pa?
Answers
Answer: 3571 L
Explanation:
According to the ideal gas equation:'
P = Pressure of the gas = 12000 Pa = 0.12 atm
V= Volume of the gas = volume of tank = ?
T= Temperature of the gas = 34°C = 307 K
R= Gas constant = 0.0821 atmL/K mol
n= moles of gas= 17
Therefore Volume of tank is 3571 Liters.
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3.490x 10^-3 + 1.100x10^-2[?]x10^[?]
What is a star's emission spectrum?It is the same as the HR diagram and gives the same information. It is the fingerprint of all of the colors of light emitted by a star. It is a graph of all the pollution given off by a star. It is a graph of the star’s solar flares.
In a hydrocarbon-based combustion reaction, what two molecules are most likely to be products?
Answers
The concentration of ions in the solution is 0.0063 M
What is pH?
pH is a quantitative measure of the acidity or basicity of aqueous or other liquid solutions.
pH or pOH is the measure of acidity or alkalinity of a solution.
pOH is calculated by taking negative logarithm of hydroxide ion concentration.
pH = -log []
pH + pOH = 14
11.8 + pOH = 14
pOH = 2.2
Putting in the values:
2.2 =-log []
[] =0.0063 M
Hence, the concentration of ions in the solution is 0.0063 M
Learn more about the pH here:
#SPJ2
Answer:
[OH⁻] = 6.31 × 10⁻³ M
SOlution:
Step 1: Calculate pOH as,
pH + pOH = 14
As, pH = 11.8
So,
11.8 + pOH = 14
Or,
pOH = 14 - 11.8
pOH = 2.2
Step 2: Calculate [OH⁻],
pOH is related to [OH⁻] as,
pOH = - log [OH⁻]
Putting value of pOH,
2.2 = -log [OH⁻]
Solving for [OH⁻],
[OH⁻] = 10⁻²'² ∴ 10 = Antilog
[OH⁻] = 6.31 × 10⁻³ M
Answers
Answer:
1 mol of sucarose has 7.22 x10²⁴ atoms of C, 1.32 x10²⁵ atoms of H and 6.62 x10²⁴ atoms of O
Explanation:
C12H22O11 is the molecular formular for sucarose
So in 1 mol of sacarose, we have 12 mols of carbon, 22 moles of hydrogen, and 11 mols of oxygen.
As you know, 1 mol has 6.02x10²³ atoms so these are the rule of three to calculate the number of atoms of each type.
1 mol ______ 6.02x10²³
12 moles ______ 12 . 6.02x10²³ = 7.22 x10²⁴
22 moles ______ 22 . 6.02x10²³ = 1.32 x10²⁵
11 moles _______ 11 . 6.02x10²³ = 6.62 x10²⁴
b. solution
c. solvent
d. solute
Answers
The correct answer is D. Solute
Explanation:
In a solution, there are two main substances or elements involved these are the solute and the solvent. The solvent refers to the liquid such as water that dissolves another substance that is the solute. In this way, the solute is the substance that integrates or dissolves in the liquid or solvent and this can be liquid or solid. According to this, in the case presented the water is the solvent, the salt is the solute, and the final substance is the solution. Thus, the salt particles are referred to as the solute.
Answers
Answers
Answer:
moist air is less dense than dry air because water has a lower molecular weight than nitrogen and oxygen
Answer:
Water vapor is a relatively light gas when compared to diatomic Oxygen and diatomic Nitrogen. Thus, when water vapor increases, the amount of Oxygen and Nitrogen decrease per unit volume and thus density decreases because mass is decreasing.