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The tungsten metal used for filaments in light bulbs is made by reaction of tungsten(VI) oxide with hydrogen: WO3(s)+3H2(g)→W(s)+3H2O(g) The above reaction was performed and produced 5.51 g of tungsten.
How many moles of tungsten were formed? Express your answer with the appropriate units.

Respuesta :

Answer: 0.0300 moles

Explanation:

According to avogadro's law, 1 mole of every substance occupies 22.4 L at STP , weighs equal to its molecular mass and contains avogadro's number [tex]6.023\times 10^{23}[/tex] of particles.

To calculate the moles, we use the equation:

[tex]\text{Number of moles}=\frac{\text{Given mass}}{\text {Molar mass}}[/tex]

Given mass of tungsten = 5.51 g

Molar mass of tungsten = 183.84 g/mol

putting in the values we get:

[tex]\text{Number of moles}=\frac{5.51g}{183.84g/mol}=0.0300mol[/tex]

Thus 0.0300 moles of tungsten were formed.

The number of moles of tungsten (W) that were formed is 0.03 moles

From the question

5.51 g of tungsten was formed from the reaction.

To determine the number of moles of tungsten that were formed,

We will use the formula

[tex]Number\ of\ moles =\frac{Mass}{Molar\ mass}[/tex]

Mass of tungsten = 5.51 g

Molar mass of tungsten = 183.84 g/mol

∴ Number of moles of tungsten formed = [tex]\frac{5.51}{183.84}[/tex]

Number of moles of tungsten formed = 0.02997 moles

Number of moles of tungsten formed ≅ 0.03 moles

Hence, the number of moles of tungsten that were formed is 0.03 moles

Learn more here: https://brainly.com/question/21555843

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