what is the formula of finding mass?
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The mass of an object can be calculated in a number of different ways: mass=density×volume (m=ρV). Density is a measure of mass per unit of volume, so the mass of an object can be determined by multiplying density by volume. mass=force÷acceleration (m=F/a).
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Mathematical formula of momentum is "p=mv" where p=momentum, m=mass of an object and v=velocity of that object. SI unit of momentum is kgm/s. 4.7.
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Summary. Weight is a measure of the force of gravity pulling down on an object. It depends on the object's mass and the acceleration due to gravity, which is 9.8 m/s2 on Earth. The formula for calculating weight is F = m × 9.8 m/s2, where F is the object's weight in Newtons (N) and m is the object's mass in kilograms.
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['Determine the weight of each number.', 'Find the sum of all weights.', 'Calculate the sum of each number multiplied by its weight.', 'Divide the results of step three by the sum of all weights.']
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To convert between mass and weight, you use the value for gravitational acceleration g = 9.81 meters per second squared. To calculate the weight, W, in Newtons, you multiply the mass, m, in kilograms times g: W = mg. To get mass from weight, you divide the weight by g: m = W/g.
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The mass of an object is a measure of the object's inertial property, or the amount of matter it contains. The weight of an object is a measure of the force exerted on the object by gravity, or the force needed to support it.
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The mass can be calculated by dividing the net force acting on an object by the acceleration of the object. When talking about net force, we use the units kilogram meter per second squared. This is also known as a Newton. The units for acceleration is meters per seconds squared, and the units for mass are kilograms.
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Calculating Relative Formula Mass. The relative formula mass (RFM) is calculated by adding together the atomic masses of all the atoms shown in the formula. RFM =14 + (3x1)=17.
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Empirical formula weight = (1 x 12.01g/mol) + (2 x 1.01g/mol) + (1 x 16.00g/mol) = 30.02g/mol. Divide the molar mass for the molecular formula by the empirical formula mass. The result determines how many times to multiply the subscripts in the empirical formula to get the molecular formula.
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If you know the density of the material from which the object is made, you can find the volume simply by weighing the object. Since density = mass ÷ volume; volume = mass ÷ density. Example: A silver statue weighs 10 kilograms.
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Explanation: The density D is calculated by: D=mV . The relationship between the mass m and the molecular weight MM is the following: n=mMM⇒m=n×MM , where, n is the number of mole of the substance in question.
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Divide the molar mass for the molecular formula by the empirical formula mass. The result determines how many times to multiply the subscripts in the empirical formula to get the molecular formula.
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The equation used to calculate the weight of an object is F = ma. "F" is the force in Newtons, "m" is the mass in grams and "a" is the acceleration due to gravity.
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Formula Mass Versus Molecular Mass D. ... The formula mass (formula weight) of a molecule is the sum of the atomic weights of the atoms in its empirical formula. The molecular mass (molecular weight) of a molecule is its average mass as calculated by adding together the atomic weights of the atoms in the molecular formula.
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To work out the empirical formula, you need the mass of the magnesium (from step 2) and the mass of the oxygen atoms as well. To find the mass of the oxygen atoms, subtract the mass of magnesium used from the mass of the magnesium oxide (from step 6).
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1) Mass is a measurement of the amount of matter something contains, while Weight is the measurement of the pull of gravity on an object. 2) Mass is measured by using a balance comparing a known amount of matter to an unknown amount of matter. Weight is measured on a scale.
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The formula mass of a substance is the sum of the average atomic masses of each atom represented in the chemical formula and is expressed in atomic mass units. The formula mass of a covalent compound is also called the molecular mass.