Dalton’s Law CalculationA mixture of H₂, N₂ and Ar gases is present in a steel cylinder. The total pressure within the cylinder is 675 mm Hg and the partial pressures of N₂ and Ar are, respectively, 354 mm Hg and 235 mm Hg. If CO₂ gas is added to the mixture, at constant temperature, until the total pressure reaches 842 mm Hg, what is the partial pressure, in mm Hg, of the following?A) CO₂, 167 B) N₂, 354 C) Ar, 235 D) H₂, 8629
Answers
Answer:
A) The partial presssure of CO₂ is 167 mm Hg
B) The partial presssure of N₂ is 354 mm Hg
C) The partial presssure of Ar is 235 mm Hg
D) The partial presssure of H₂ is 86 mm Hg
Explanation:
Dalton's law of partial pressures is basically expressed by the following statement:
The total pressure of a mixture is equal to the sum of the partial pressures of its components.
So initially we have:
= total presure of the system (675 mm Hg).
= partial pressure of N₂ (354 mm Hg).
= partial pressure of Ar (235 mm Hg).
Using Dalton's law we can find the partial pressure of H₂:
675 mm Hg=354 mm Hg + 235 mm Hg +
= 675 mm Hg - 354 mm Hg - 235 mm Hg
=86 mm Hg
If CO₂ gas is added to the mixture, at constant temperature, and the volume is the same, the difference between the new total pressure and the previous total pressure is equal to the partial pressure of CO₂.
842 mm Hg= 354 mm Hg + 235 mm Hg + 86 mm Hg +
= 842 mm Hg - 354 mm Hg - 235 mm Hg - 86 mm Hg
= 167 mm Hg
Related Questions
Carbon dioxide is one of the main gases in the mixture of gases coming out of the kiln.Give two reasons why.
A 0.100 M solution of K2SO4 would contain the same total ion concentration as which of the following solutions?0.0800 M Na2CO3 0.100 M NaCl 0.0750 M Na3PO4 0.0500 M NaOH
To form a hydrogen bond, what must the non-hydrogen atom (NN, OO, or FF) involved in the bond possess?
List five basic steps of the scientific method
squirrels that bury nuts in the ground
B.
fungi that decompose the remains of dead trees
C.
flowers that turn to follow the sun as it moves across the sky
D.
bees that help spread pollen from one plant to another
Answers
Answer: D. bees that help spread pollen from one plant to another
Explanation: i took the k12 test and passed :)
Answers
Answer:2.50 moles of magnesium will consume approximately 182.30 grams of hydrochloric acid in the given reaction.
Explanation:To find out how many grams of hydrochloric acid (HCl) are consumed when 2.50 moles of magnesium (Mg) react with it, you can use stoichiometry and the balanced chemical equation:
Mg(s) + 2HCl(aq) -> MgCl2(aq) + H2(g)
From the balanced equation, you can see that 1 mole of magnesium (Mg) reacts with 2 moles of hydrochloric acid (HCl).
Now, let's use this information to calculate the moles of HCl required to react with 2.50 moles of Mg:
Moles of HCl = (2.50 moles Mg) * (2 moles HCl / 1 mole Mg)
Moles of HCl = 2.50 moles * 2
Moles of HCl = 5.00 moles
Now that we know we need 5.00 moles of HCl, we can calculate the grams of HCl needed using the molar mass of HCl:
The molar mass of HCl is the sum of the atomic masses of hydrogen (H) and chlorine (Cl):
Molar mass of HCl = 1.01 g/mol (for hydrogen) + 35.45 g/mol (for chlorine)
Molar mass of HCl = 36.46 g/mol
Now, calculate the grams of HCl:
Grams of HCl = (5.00 moles) * (36.46 g/mol)
Grams of HCl = 182.30 grams
So, 2.50 moles of magnesium will consume approximately 182.30 grams of hydrochloric acid in the given reaction.
b) the number of electrons in the outermost electron shell.
c) the attraction of an atom for the electrons in a covalent bond.
d) the repulsion of electrons in one atom for electrons in another atom.
Answers
Answer:
c) the attraction of an atom for the electrons in a covalent bond.
Explanation:
Electronegativity, symbol χ, is a chemical property describing an atom's ability of to attract a shared pair of electrons to itself. It is influenced by the atomic number of the atom and the distance between the valence electrons and the charged nucleus. As the electronegativity number of atoms increases, the more the atom attracts electrons towards itself.
Final answer:
Electronegativity is the attraction of an atom for electrons in a covalent bond. It determines how strongly an atom pulls shared electrons towards itself in a molecule.
option c is correct
Explanation:
Electronegativity is the attraction of an atom for the electrons in a covalent bond. It is a measure of how strongly an atom pulls shared electrons towards itself when it forms a covalent bond with another atom.
For example, in a molecule of HCl, chlorine is more electronegative than hydrogen, so the chlorine atom pulls the shared electron pair towards itself, resulting in a partial negative charge on the chlorine atom and a partial positive charge on the hydrogen atom.
Electronegativity increases as you move across a row or period in the periodic table from left to right and decreases as you move down a column or group.
Learn more about Electronegativity here:
#SPJ11
moving them farther apart
adding electrons
removing electrons
adding neutrons
removing neutrons
Answers
Answer : Option B) Moving them farther apart.
Explanation : Force (F) is inversely proportional to distance (D) separated by charges.
When Electrostatic force is found to be inversely proportional between two positive charges which is separated by a distance D, then to decrease the electrostatic force of one can try to change the distance between the two positive charges in such a way that it increases the distance and decreased the electric force. The best option would be to move the them far apart from each other.
Answers