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To find the number of atoms in a substance, please make sure you have the formula of that substance first. For example, let us take water as an example.
Substance: Water
Formula: H2O
Let us now analyze this formula:
H2 = 2 Hydrogen atoms
O = 1 Oxygen atom
2 hydrogen atoms + 1 Oxygen atom = 3 atoms in total
Thus you can determine the number of atoms in a substance.
What else can I help you with?
How many molecules are in 45 g of silver?
To determine the number of molecules in 45 g of silver, you first need to calculate the number of moles of silver using its molar mass (107.87 g/mol). Then, you can use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
How many molecules are there in 2 grams of hydrogen gas?
To calculate the number of molecules in 2 grams of hydrogen gas, you first need to determine the number of moles of hydrogen using the molar mass of hydrogen (2 g/mol). Then, you can use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
How many molecules are in 10.0 g of pure C8H8O3?
To determine the number of molecules in 10.0 g of C8H8O3, we need to calculate the number of moles first. The molar mass of C8H8O3 is 152.15 g/mol. By dividing 10.0 g by the molar mass, we find that there are approximately 0.0658 moles of C8H8O3. To convert moles to molecules, we multiply the number of moles by Avogadro's number, 6.022 x 10^23, giving us about 3.96 x 10^22 molecules.
How do you calculate the number of oxygen atoms in 2 NO3 molecules?
To calculate the number of oxygen atoms in 2 NO3 molecules, you first need to determine the total number of oxygen atoms in one molecule of NO3, which is 3 oxygen atoms. Since you have 2 NO3 molecules, you would multiply the number of oxygen atoms in one molecule by the number of molecules, giving you a total of 6 oxygen atoms.
What is the mass in grams of 9.39 and times1024 molecules of methanol (CH3OH)?
To find the mass of 9.39 × 10²⁴ molecules of methanol (CH₃OH), first determine the number of moles using Avogadro's number (6.022 × 10²³ molecules/mol). Calculate the moles: 9.39 × 10²⁴ molecules ÷ 6.022 × 10²³ molecules/mol ≈ 15.59 moles. The molar mass of methanol is approximately 32.04 g/mol, so the mass is 15.59 moles × 32.04 g/mol ≈ 499.5 grams.
How many molecules of THC does 26μg represent?
To determine the number of molecules in 26μg of THC, we need to know the molecular weight of THC to convert the mass to moles. Then, we can use Avogadro's number (6.022 x 10^23) to find the number of molecules. Without the molecular weight of THC, we cannot determine the exact number of molecules.
Does the number of molecules determine what type of element it is?
The element is determined by the number of protons in its nucleus. Since molecules are made up of elements, the number of molecules has nothing to do with determining the element.
Determine the number of bromine molecules present in the flask containing 0.120 of liquid bromine?
To determine the number of bromine molecules, you need to first convert the mass of liquid bromine to moles using its molar mass. Then, use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
A flask contains 0.270 of liquid bromine Determine the number of bromine molecules present in the flask?
To determine the number of bromine molecules present in the flask, you can use Avogadro's number. First, calculate the number of moles of bromine in the flask by dividing the given mass by the molar mass of bromine. Then, multiply the number of moles by Avogadro's number (6.022 x 10^23) to find the number of bromine molecules.
If A flask contains 440 mol of liquid bromine Determine the number of bromine molecules in the flask?
There are approximately 2.65 × 10^26 bromine molecules in the flask. This is calculated by multiplying Avogadro's number (6.022 × 10^23 molecules/mol) by the number of moles of bromine present in the flask (440 mol).
A flask contains 0.310 of liquid bromine Determine the number of bromine molecules present in the flask?
.310 MOLES 6.022*(10^23 ) molecules --------------- times ------------------------------------ = 1.8668 * 10^23 molecules 1 mole because there are 3 sig figs the answer should reflect that number. so the answer is 1.87 * 10^23 molecules
How many molecules are contained in a 4.15-g sample of dimethylmercury?
To calculate the number of molecules in a sample of dimethylmercury, you would first need to determine the number of moles in the sample using the molar mass of dimethylmercury. Then you can use Avogadro's number (6.022 x 10^23 molecules/mol) to calculate the number of molecules.
A flask contains 0.500 of liquid bromine Determine the number of bromine molecules present in the flask?
To find the number of bromine molecules in the flask, first determine the molar mass of bromine, which is 79.904 g/mol. Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert the mass of bromine in the flask to the number of molecules. This will give you approximately 1.66 x 10^22 bromine molecules in the flask.
What is avogadro s number used to determine?
The number of basic particles - atoms of molecules - of a compound in one mole of the substance.
How many molecules of H2(g) are there in a 21.25 gram sample?
To calculate the number of molecules, you first need to determine the number of moles of H2 in the 21.25 gram sample using the molar mass of H2 (2 grams/mol). Then, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules.
A flask contains 0.380 mol of liquid bromine Determine the number of bromine molecules present in the flask?
The number of bromine molecules present in the flask can be calculated using Avogadro's number, which is 6.022 x 10^23 molecules/mol. In this case, there are 0.380 mol of bromine, so the number of bromine molecules present is 0.380 mol x 6.022 x 10^23 molecules/mol.
How many argon molecules are contained in 119.98 grams of argon?
To calculate the number of argon molecules, first find the number of moles of argon in 119.98 grams using the molar mass of argon (39.95 g/mol). Next, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles to molecules. Simply multiply the number of moles by Avogadro's number to determine the total number of argon molecules.
