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Average Atomic Mass Formula

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Average Atomic Mass is defined as the average of the atomic masses of two isotopic compositions of the same element. Check FAQs

A.M avg = \frac{m \cdot a + n \cdot b}{m + n}

A.M_avg - Average Atomic Mass?m - Ratio Term of Isotope A?a - Atomic Mass of Isotope A?n - Ratio Term of Isotope B?b - Atomic Mass of Isotope B?

Average Atomic Mass Example

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Here is how the Average Atomic Mass equation looks like with Values.

Here is how the Average Atomic Mass equation looks like with Units.

Here is how the Average Atomic Mass equation looks like.

35.4641 = \frac{3 \cdot 34.9688 + 0.99 \cdot 36.965}{3 + 0.99}

35.4641g = \frac{3 \cdot 34.9688g + 0.99 \cdot 36.965g}{3 + 0.99}

35.4641 = \frac{3 \cdot 34.9688 + 0.99 \cdot 36.965}{3 + 0.99}

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Average Atomic Mass Solution

Follow our step by step solution on how to calculate Average Atomic Mass?

FIRST Step Consider the formula

A.M avg = \frac{m \cdot a + n \cdot b}{m + n}

Next Step Substitute values of Variables

∴

A.M avg = \frac{3 \cdot 34.9688g + 0.99 \cdot 36.965g}{3 + 0.99}

Next Step Convert Units

∴

A.M avg = \frac{3 \cdot 0.035kg + 0.99 \cdot 0.037kg}{3 + 0.99}

Next Step Prepare to Evaluate

∴

A.M avg = \frac{3 \cdot 0.035 + 0.99 \cdot 0.037}{3 + 0.99}

Next Step Evaluate

∴

A.M avg = 0.0354640977443609kg

Next Step Convert to Output's Unit

∴

A.M avg = 35.4640977443609g

LAST Step Rounding Answer

∴

A.M avg = 35.4641g

Average Atomic Mass Formula Elements

Variables

Average Atomic Mass

Average Atomic Mass is defined as the average of the atomic masses of two isotopic compositions of the same element.

Symbol: A.M_avg

Measurement: WeightUnit: g

Note: Value should be greater than 0.

Formulas to find Average Atomic Mass

Ratio Term of Isotope A

Ratio Term of Isotope A represents the quantity that denotes the ratio relation Isotope A has to Isotope B.

Symbol: m

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Ratio Term of Isotope A

Atomic Mass of Isotope A

Atomic Mass of Isotope A is the quantity of matter contained in an atom of the isotope A.

Symbol: a

Measurement: WeightUnit: g

Note: Value should be greater than 0.

Formulas to find Atomic Mass of Isotope A

Ratio Term of Isotope B

Ratio Term of Isotope B represents the quantity that denotes the ratio relation Isotope B has to Isotope A.

Symbol: n

Measurement: NAUnit: Unitless

Note: Value should be greater than 0.

Formulas to find Ratio Term of Isotope B

Atomic Mass of Isotope B

Atomic Mass of Isotope B is the quantity of matter contained in an atom of the isotope B.

Symbol: b

Measurement: WeightUnit: g

Note: Value should be greater than 0.

Formulas to find Atomic Mass of Isotope B

Other formulas in Basic Chemistry category

Go Change in Boiling Point of Solvent

Δbp = K b \cdot m

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Go Boiling Point

bp = bp solvent \cdot Δbp

Go Percent by Weight

% by wt. = \frac{gSolute}{100gSolution}

How to Evaluate Average Atomic Mass?

Average Atomic Mass evaluator uses Average Atomic Mass = (Ratio Term of Isotope A*Atomic Mass of Isotope A+Ratio Term of Isotope B*Atomic Mass of Isotope B)/(Ratio Term of Isotope A+Ratio Term of Isotope B) to evaluate the Average Atomic Mass, The Average Atomic Mass formula is defined as average of the atomic masses of element which exists in two different isotopic forms, namely 'a' and 'b' present in the ratio m:n. Average Atomic Mass is denoted by A.M_avg symbol.

How to evaluate Average Atomic Mass using this online evaluator? To use this online evaluator for Average Atomic Mass, enter Ratio Term of Isotope A (m), Atomic Mass of Isotope A (a), Ratio Term of Isotope B (n) & Atomic Mass of Isotope B (b) and hit the calculate button.

FAQs on Average Atomic Mass

What is the formula to find Average Atomic Mass?

The formula of Average Atomic Mass is expressed as Average Atomic Mass = (Ratio Term of Isotope A*Atomic Mass of Isotope A+Ratio Term of Isotope B*Atomic Mass of Isotope B)/(Ratio Term of Isotope A+Ratio Term of Isotope B). Here is an example- 35464.1 = (3*0.0349688+0.99*0.036965)/(3+0.99).

How to calculate Average Atomic Mass?

With Ratio Term of Isotope A (m), Atomic Mass of Isotope A (a), Ratio Term of Isotope B (n) & Atomic Mass of Isotope B (b) we can find Average Atomic Mass using the formula - Average Atomic Mass = (Ratio Term of Isotope A*Atomic Mass of Isotope A+Ratio Term of Isotope B*Atomic Mass of Isotope B)/(Ratio Term of Isotope A+Ratio Term of Isotope B).

Can the Average Atomic Mass be negative?

Yes, the Average Atomic Mass, measured in Weight can be negative.

Which unit is used to measure Average Atomic Mass?

Average Atomic Mass is usually measured using the Gram[g] for Weight. Kilogram[g], Milligram[g], Ton (Metric)[g] are the few other units in which Average Atomic Mass can be measured.

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Average Atomic Mass Formula

Average Atomic Mass Example

Average Atomic Mass Solution

Average Atomic Mass Formula Elements

Other formulas in Basic Chemistry category

How to Evaluate Average Atomic Mass?

FAQs on Average Atomic Mass

Variable Name