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Alex777 [14]
3 years ago
14

A certain automobile contains 4 tires, 2 headlights, 1 steering wheel,

Chemistry
1 answer:
Step2247 [10]3 years ago
5 0

Answer:

143 parts I think probably not

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What is the name for the point at which the indicator changes color in a titration? turning point end point indicator point colo
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A block of aluminum occupies a volume of 15.0 mL and weighs 45 grams.
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3 years ago
How many moles of Au2S3 is required to form 56 grams of H2S at STP?
Law Incorporation [45]

Answer:

0.55 mol Au₂S₃

Explanation:

Normally, we would need a balanced equation with masses, moles, and molar masses, but we can get by with a partial equation, if the S atoms are balanced.

1. Gather all the information in one place:

M_r:                          34.08

          Au₂S₃ + … ⟶ 3H₂S + …  

m/g:                             56  

2. Calculate the moles of H₂S

Moles of H₂S = 56 g H₂S × (34.08 g H₂S/1 mol H₂S)

                      = 1.64 mol H₂S

3. Calculate the moles of Au₂S₃

The molar ratio is 1 mol Au₂S₃/3 mol H₂S.

Moles of Au₂S₃ = 1.64 mol H₂S × (1 mol Au₂S₃/3 mol H₂S)

                         = 0.55 mol Au₂S₃

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3 years ago
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