Answer: The molar mass of the gas is 31.6 g/mol
Explanation:
According to ideal gas equation:
P = pressure of gas = 3.0 atm
V = Volume of gas = 25.0 L
n = number of moles = ?
R = gas constant =
T =temperature =
Moles =
The molar mass of the gas is 31.6 g/mol
Answer:
d . sound
Explanation:
https://www.nidcd.nih.gov/health/how-do-we-hear
Answer:
v'2 is the final velocity of the bullet
Explanation:
I had the question and found it on Chegg so credits to him/her
Answer:
Root mean squared velocity is different.
Explanation:
Hello!
In this case, since we have a mixture of oxygen and nitrogen at STP, which is defined as a condition whereas T = 298 K and P = 1 atm, we can infer that these gases have the same temperature, pressure, volume and moles but a different root mean squared velocity according to the following formula:
Since they both have a different molar mass (MM), nitrogen (28.02 g/mol) and oxygen (32.02 g/mol), thus we infer that nitrogen would have a higher root mean squared velocity as its molar mass is less than that of oxygen.
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For a given reaction the half-life, t1/2, of a reactant is the time required for its concentration to reach a value that is the arithmetic mean of its initial and final (equilibrium) value.
Half-life is constant for first-order reactions.
t1⁄2 =
ln 2
k
Half-life is not constant for second-order reactions but rather it varies with initial concentration and k.
t1⁄2 =
1
k·[A]o
half-life → vrijeme poluraspada
For a simple radioactive decay process, half-life, t1/2, is defined as the time required for the activity of a given radioactive isotopes to decrease to half its value by that process.
N = N0 / 2
The half-life is a characteristic property of each radioactive isotope and is independent of its amount or condition.
limiting reactant → mjerodavni reaktant
Limiting reactant is a reactant in a chemical reaction that limits the amount of product that can be formed. The reaction will stop when the entire limiting reagent is consumed. These other reactants are present in excess.
reactant → reaktant
Reactants are initial materials in a chemical reaction.
half-cell → polučlanak
Half-cell is a part of galvanic cell in which oxidations or reduction of an element in contact with water or water solution one of its compounds.
half-wave potential → poluvalni potencijal
Half-wave potential (E1/2) is a potential at which polarographic wave current is equal to one half of diffusion current (id). In a given supporting electrolyte, the half-wave potential is unique for each element and its different valence states and chemical forms. Observation of a current peak at a specific half-wave potential therefore identifies the chemical species producing the current.