How Many Molecules of H₂S Are Required to Form 79

question 116

Multiple Choice

How many molecules of H₂S are required to form 79.0 g of sulfur according to the following reaction? Assume excess SO₂. 2 H₂S(g) + SO₂(g) → 3 S(s) + 2 H₂O(l)

• A) 1.48 × 10²⁴ molecules H₂S
• B) 9.89 × 10²³ molecules H₂S
• C) 5.06 × 10²⁵ molecules H₂S
• D) 3.17 × 10²⁵ molecules H₂S
• E) 2.44 × 10²³ molecules H₂S

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Definitions:

Demand Curve

A graphical representation showing the relationship between the price of a good and the quantity demanded by consumers at various prices.

Decrease In Demand

A downward shift in the demand curve for a product, indicating that consumers now desire less of the product at each price level.

Quantity Demanded

The total amount of a good or service that consumers are willing and able to purchase at a specific price level, at a given point in time, often depicted as a point on a demand curve.

Price Ceiling

A government-imposed limit on how high a price can be charged for a product, service, or resource, usually to protect consumers.