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12 Dec 2019

the equation representing the chemical change used to produce W is shown below. what mass of W is produced from 2.0g H2 and 50g of WO3?

WO3 + 3H2 ---> W + 3 H2O

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Lelia Lubowitz
Lelia LubowitzLv2
13 Dec 2019

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Related questions

at what temperature is the reduction of tungsten oxide byhydrogen to give metallic tungsten and steam spontaneous? Thestandard heat of formation of WO3(s) is -843kJ/mol and its standardmolar entropy is 76 J/ (K*mol).

WO3(s) + 3H2(g) --> W(s) + 3H2O(g)

at what temperature is the reduction of tungsten oxide byhydrogen to give metallic tungsten and steam spontaneous? Thestandard heat of formation of WO3(s) is -843kJ/mol and its standardmolar entropy is 76 J/ (K*mol).

WO3(s) + 3H2(g) --> W(s) + 3H2O(g)

The tungsten metal used for filaments in light bulbs is made by reaction of tungsten(VI) oxide with hydrogen:
WO3(s)+3H2(g)รขย†ย’W(s)+3H2O(g)
The above reaction was performed and produced 5.78 g of tungsten.

(c) How many moles of hydrogen were required to produce the 5.78 g of tungsten?

(d) How many grams of tungsten(VI) oxide must you start with to prepare 5.78 g of tungsten? (For WO3, MW=231.8amu.)

(e) How many grams of hydrogen must you start with to prepare 5.78 g of tungsten?

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