Magnesium Chloride Is Often Used to Melt Ice on Sidewalks

question 22

Multiple Choice

Magnesium chloride is often used to melt ice on sidewalks. Considering that the solubility of magnesium chloride (95.21 g/mol) in water is 54.3 g per 100.0 g of water, what is the lowest temperature that you would expect to be able to melt ice with magnesium chloride? Assume ideal behavior. K_f (water)  1.86C/m

• A)(  40  C)
• B)(  32  C)
• C)(  11  C)
• D)(  25  C)
• E)(  22  C)

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Definitions:

Fixed Overhead Rate

A predetermined rate used to allocate fixed overhead costs to units of output, based on a standard level of activity.

Gross Profit

Sales minus the cost of goods sold.

Volume Variance

A measure used in budgeting and accounting to illustrate the difference between expected sales volume and actual sales volume.

Standard Costs

Predetermined costs for manufacturing a product or delivering a service, used as targets or benchmarks.