The Mineral Hausmannite Is a Compound of ⁵⁵Mn and ¹⁶O

question 176

Multiple Choice

The mineral hausmannite is a compound of ⁵⁵Mn and ¹⁶O. If 72% of the mass of hausmannite is due to manganese, what is the empirical formula of hausmannite

• A) MnO
• B) Mn₃O
• C) Mn₃O₄
• D) Mn₄O₃
• E) MnO₃

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Definitions:

Salvage Value

The anticipated end-of-life value of an asset once it has finished its useful period.

Plant Asset

Long-term tangible assets that are used in the operations of a business and are not intended for sale.

Book Value

The value of an asset as recorded on a company's balance sheet, calculated as the cost of an asset minus accumulated depreciation.

Double Declining-balance

An accelerated method of depreciation where an asset's book value is reduced at double the rate of its straight-line depreciation.