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What is the molar mass of H2O to the nearest whole number?
18g/mol
What percentage composition of Al2O3 is aluminum?
Molar Mass of Al: 2(27.0g/mol) = 54.0g/mol Molar Mass of O: 3(16.0g/mol) = 48.0g/mol Molar Mass of compound: 102.0g.mol (54.0g/mol / 102.0g/mol) x 100% = 52.9%
What is 4.00260 rounded to in atomic mass?
It is 4.0026 : the atomic mass can be a fraction.
What is the two decimal places of relative atomic mass and the molar mass of the element potassium K?
It is 39.10
What To two decimal places what is the relative atomic mass and the molar mass of the element potassium K?
It is 38.96
Molar mass is a whole number multiple of the a) empirical formula mass c) average atomic mass b) amu d) mass percent?
The correct answer is a) empirical formula mass. The molar mass of a compound is often a whole number multiple of its empirical formula mass, as the empirical formula represents the simplest whole-number ratio of the elements in the compound, while the molar mass reflects the total mass of a mole of its molecules or formula units.
What is the molar mass of H2O to the nearest whole number?
18g/mol
Is the empirical formula molar mass less than or equal to the actual molar mass for all compound?
The empirical formula molar mass is the mass of the simplest whole-number ratio of the elements in a compound, while the actual molar mass corresponds to the molar mass of the compound's molecular formula. The empirical formula molar mass is always less than or equal to the actual molar mass because the empirical formula represents the smallest ratio of atoms, which can be multiplied to obtain the molecular formula. Therefore, for compounds with a molecular formula that is a multiple of the empirical formula, the empirical molar mass will be less than the actual molar mass.
How many times heavier is the molar mass than the empirical formula mass?
The molar mass of a compound is typically a multiple of its empirical formula mass, depending on the molecular formula. To determine how many times heavier the molar mass is than the empirical formula mass, you can divide the molar mass by the empirical formula mass. This ratio will yield a whole number that represents how many times the empirical formula fits into the molecular formula. For example, if the molar mass is 60 g/mol and the empirical formula mass is 15 g/mol, then the molar mass is 4 times heavier than the empirical formula mass.
What is the molar mass of CO2 rounded to the nearest whole number?
The answer is simple it's one/1
Is avogadro's number the same as molar mass?
no youre thinking of molar mass and atomic weight although you use avogadro's number to find molar mass
What is the molar mass of water molecule Use the closest whole number with proper unit?
The molar mass of a water molecule (H₂O) is calculated by adding the molar masses of its constituent atoms: two hydrogen atoms (approximately 1 g/mol each) and one oxygen atom (approximately 16 g/mol). Thus, the molar mass of water is about 18 g/mol when rounded to the nearest whole number.
How is the number of moles of an element determined from the known mass?
To determine the number of moles of an element from its known mass, you can use the formula: moles = mass / molar mass. First, find the molar mass of the element from the periodic table. Then, divide the given mass of the element by its molar mass to find the number of moles.
A sample of a compound contain 1.52 g of Nitrogen and 3.47 g of Oxygen. The molar mass of this compound is between 90 grams and 95 grams. Determine molecular formula and the accurate molar mass.?
A sample of a compound contain 1.52 g of Nitrogen and 3.47 g of Oxygen. The molar mass of this compound is between 90 grams and 95 grams. The molecular formula and the accurate molar mass would be N14O35.
What does the molar mass of C7H16 and the molar mass of CaCO3 have the same number of?
Both C7H16 and CaCO3 have a molar mass of approximately 116 grams per mole.
How is the number of moles determined from a known mass?
Number of moles = Total mass/Molar mass
Molar mass of Li?
The molar mass of Li = 6.941 g/mol
