The number of atoms in one molecule of argon is the same as the number of molecules in onemole of Ammonia which is equal to 6.02 × 10²³units.
The Avogadro's number, postulated by italiàn scientist Amedeo Avogadro, is simply defined as the number of units in one mole of any substance (which is defined as the molecular weight in grams), equal to 6.02 × 10²³.
In this scenario, the number of atoms in onemole of argon is therefore the same as the number of molecules in one mole of Ammonia.
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2g of Copper 2 ions
Explanation:
96.485 columbs=1 faraday will
deposit 64/2g= 32 g cu ion
therfore it will require
96,485 ×2/32 =? coulombs or 1/16 of
Faraday= 1 / 16 mole of electrons .
Uniform
Heterogeneous
Solutes
Homogenous
Answer: Heterogenous
Explanation:
A heterogenous mixture is one where the composition of matter is not uniform throughout.
Some examples of heterogenous mixtures include: chocolate chip cookies, salad dressing, strawberry yogurt
AgNO3 + NaCl yields AgCl + NaNO3
Fe2O3 + 3H2O yields 2Fe(OH)3
CH4 + 2O2 yields CO2 + 2H2O
2Al +H2O yield 2Al(OH)3 + 3H2 (answer A)
is an example of single replacement reaction
This is because single replacement reaction involve an element reacting with a compound and take place of another element in that compound. Al an element react with to yield Al(OH)3 and H2. Al take place of H + therefore the reaction above is example of single replacement.
B. the change in temperature the object undergoes.
C. the initial amount of Calories in the object.
D. the mass of the object.
The amount of heat transferred from an object depends on all of the following except the initial amount of Calories in the object. The answer is letter C. The equation to be used to calculate the heat release when solid melts is the enthalpy of melting. It is represented as H = mCpT where H is the heat released after phase change, m is the mass of the substance, Cp is the specific heat capacity of the substance and T is the change in temperature.
The best statement among the following which explains whether alchemy is a science or pseudoscience is "It is pseudoscience because each metal is known to be a unique element." Hence, Option (D) is correct.
Alchemy began to fully evolve into chemistry in the 17thcentury, with a greater emphasis on rational thought and experimentation and less emphasis on spirituality and mysticism.
The alchemists were never successful in changing lead into gold, but modernnuclear physics can accomplish this task.
Therefore , The best statement among the following which explains whether alchemy is a science or pseudoscience is "It is pseudoscience because each metal is known to be a unique element." Hence, Option (D) is correct.
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First convert grams to molesusing molar mass of butane that is 58.1 g
3.50g C4H10 x (1 molC4H10)/(58.1g C4H10) = 0.06024 mol C4H10
Now convert moles to molecules by using Avogadro’s number
0.06024 mol C4H10 x (6.022x10^23 molecules C4H10)/(1 molC4H10) = 3.627x10^22 molecules C4H10
And there are 4 carbon atoms in 1 molecule of butane, so usethe following ratio:
3.627 x 10^22 molecules C4H10 x (4 atoms C)/(1 moleculeC4H10)
= 1.45 x 10^23 atoms of carbon are present
of carbon is present in 3.50 g of butane.
Further Explanation:
Mole is a measure of the amount of substance. It is defined as the mass of a substance that has the same number of fundamental units as there are atoms in 12 g of carbon-12. Such fundamental units can be atoms, molecules or formula units.
Avogadro’s number is the number of units that are present in one mole of the substance. Its value is equal to per mole of substance. These units can be electrons, atoms, molecules or ions.
The formula to calculate the moles of butane is as follows:
......(1)
The given mass of butane is 3.50 g.
The molar mass of butane is 58.12 g/mol.
Substitute these values in equation (1).
The molecules of butane are calculated as follows:
......(2)
The moles of butane is 0.060220234 mol.
The value of Avogadro’s number is .
Substitute these values in equation (2).
One molecule of butane has four carbon atoms. So the number of carbon atoms in of butane is calculated as follows:
.......(3)
Substitute for the molecules of butane in equation (3).
Therefore the number of atoms of carbon is .
Learn more:
1. Calculate the moles of chlorine in 8 moles of carbon tetrachloride: brainly.com/question/3064603
2. Calculate the moles of ions in the solution: brainly.com/question/5950133
Answer details:
Grade: Senior School
Subject: Chemistry
Chapter: Mole concept
Keywords: mole, atoms of carbon, molecules of butane, carbon-12, 12 g, Avogadro’s number, butane, moles of butane, electrons, molecules, atoms.