객관식
A medication is prescribed at a dose of 500 micrograms (mcg). If the medication is supplied as a solution with a concentration of 1 mg/mL, how many milliliters (mL) are needed to provide the prescribed dose?
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- 1. Intro to General Chemistry3h 57m
- Classification of Matter18m
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1. Intro to General Chemistry
Conversion Factors
객관식
How many calories are in 5401 J? (1 cal = 4.184 J)
A
22,600 cal
B
773 cal
C
5401 cal
D
1291 cal
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검증된 단계별 안내1
Identify the given information: the energy in joules (5401 J) and the conversion factor between calories and joules (1 cal = 4.184 J).
Write the conversion formula to convert joules to calories: \(\text{calories} = \frac{\text{joules}}{4.184}\).
Substitute the given value of joules into the formula: \(\text{calories} = \frac{5401}{4.184}\).
Perform the division to find the number of calories (do not calculate the final value here, just set up the expression).
Interpret the result as the amount of energy in calories equivalent to 5401 joules.
