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Calculate the number of moles of oxygen atom in 18.1 mole of CH2O?
Since there is only 1 oxygen atom in CH2O, there is the same amount of oxygen atoms as there are molecules of CH2O. So the answer is 18.1 mole. But if you burn it, you will form oxygen in its natural form, which is O2. So there will only be the half the amount of the oxygen. Then the answer would be 18.1 / 2 = 9.05 mole.
How many atoms are in 0.455 moles of lead?
Atomic mass: 207.2 grams.455 moles × (6.02 × 1023) = 2.74 × 1023 atoms of lead
What is the molecular formula of the molecule that has an empirical formula of CH2O and a molar mass of 120.1g?
The empirical formula CH2O has a molar mass of 30.03 g/mol (12 g/mol for C + 2 g/mol for H + 16 g/mol for O). To find the molecular formula, divide the molar mass given (120.1 g/mol) by the molar mass of the empirical formula to get 4. This means the molecular formula is (CH2O)4, which simplifies to C4H8O4.
Calculate the mass of 0139 moles of copper?
The molar mass of copper (Cu) is 63.55 g/mol. To calculate the mass of 0.139 moles of copper, you can use the formula: mass = moles × molar mass. Therefore, the mass of 0.139 moles of copper is 8.82 grams.
What is the Mass in Grams of 1.50 moles of hydrogen peroxide?
The molar mass of hydrogen peroxide (H2O2) is 34.01 g/mol. To find the mass of 1.50 moles, you would multiply the number of moles by the molar mass: 1.50 moles * 34.01 g/mol = 51.015 grams. So, the mass of 1.50 moles of hydrogen peroxide is 51.015 grams.
How many atoms of hydrogen 31 grams in CH2O?
To find the number of moles in 31 grams of CH2O, we divide the mass by the molar mass of CH2O (30.03 g/mol). This gives us approximately 1.03 moles of CH2O. Since there are two hydrogen atoms in each molecule of CH2O, we multiply the number of moles by Avogadro's number (6.02 x 10^23) and by 2 to find about 1.24 x 10^24 hydrogen atoms.
How many molecules of CH2O are in 50.0 g of CH2O?
To find the number of molecules in 50.0 g of CH2O, you need to first calculate the number of moles of CH2O using its molar mass (30.03 g/mol). Next, use Avogadro's number (6.022 x 10^23 molecules/mol) to convert moles into molecules. Therefore, 50.0 g of CH2O contains approximately 1.66 x 10^24 molecules.
How many molecules of CH2O are in 30.0 g of CH2O?
To find the number of molecules in 30.0 g of CH2O, you first need to calculate the number of moles of CH2O using its molar mass (12.01 g/mol for C, 1.01 g/mol for H, and 16.00 g/mol for O), and then use Avogadro's number (6.022 x 10^23) to convert moles to molecules.
How many grams in 2 moles of methane?
The amount of grams in two moles depends on the element or compound that you have two moles of. For example, the molar mass of oxygen is about 16 grams. So two moles of oxygen would be about 32 grams.
Calculate the number of moles of oxygen atom in 18.1 mole of CH2O?
Since there is only 1 oxygen atom in CH2O, there is the same amount of oxygen atoms as there are molecules of CH2O. So the answer is 18.1 mole. But if you burn it, you will form oxygen in its natural form, which is O2. So there will only be the half the amount of the oxygen. Then the answer would be 18.1 / 2 = 9.05 mole.
What is the mass of 455 ml of ethane gas c2h6 at stp?
To find the mass of 455 mL of ethane (C₂H₆) gas at standard temperature and pressure (STP), we first note that 1 mole of any ideal gas occupies 22.4 liters (or 22,400 mL) at STP. Thus, 455 mL of ethane corresponds to approximately ( \frac{455}{22400} ) moles, which is about 0.0203 moles. The molar mass of ethane is about 30.07 g/mol, so the mass of 455 mL of ethane at STP is approximately ( 0.0203 , \text{moles} \times 30.07 , \text{g/mol} \approx 0.61 , \text{grams} ).
How many moles of Pt are in a 455-mg ring of pure platinum?
To find the number of moles of Pt in the ring, you first need to convert the mass of the ring from milligrams to grams (since 1 gram = 1000 milligrams). Then, divide the mass in grams by the molar mass of platinum (approximately 195.08 g/mol) to find the number of moles of Pt in the ring.
How many atoms are in 0.455 moles of lead?
Atomic mass: 207.2 grams.455 moles × (6.02 × 1023) = 2.74 × 1023 atoms of lead
What is the molecular formula of the molecule that has an empirical formula of CH2O and a molar mass of 120.1g?
The empirical formula CH2O has a molar mass of 30.03 g/mol (12 g/mol for C + 2 g/mol for H + 16 g/mol for O). To find the molecular formula, divide the molar mass given (120.1 g/mol) by the molar mass of the empirical formula to get 4. This means the molecular formula is (CH2O)4, which simplifies to C4H8O4.
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
How can one determine the number of moles in a substance using the formula for finding moles?
To determine the number of moles in a substance, you can use the formula: moles mass / molar mass. Simply divide the mass of the substance by its molar mass to find the number of moles.
Calculate the mass of 0139 moles of copper?
The molar mass of copper (Cu) is 63.55 g/mol. To calculate the mass of 0.139 moles of copper, you can use the formula: mass = moles × molar mass. Therefore, the mass of 0.139 moles of copper is 8.82 grams.
