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Topic: Need help problem solving!! {Mass and percentages}  (Read 2475 times)

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Offline thare22

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Need help problem solving!! {Mass and percentages}
« on: October 13, 2012, 09:11:47 PM »
Need help with equation
An empty 3.0L bottle weighs 1.70 kg. Filled with wine the bottle weighs 4.72 kg. The wine contains 11.0% ethyl alcohol by mass. How many ounces of ethyl alcohol are present in a drink that contains 275 mL of the wine? (1 lb= 454g, 16 oz=1 lb)
Thanks!
« Last Edit: October 14, 2012, 09:38:52 AM by Arkcon »
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Offline thare22

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Re: Need help problem solving!!
« Reply #1 on: October 13, 2012, 09:40:08 PM »
I dont even know where to start here. . . .
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Offline discodermolide

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Re: Need help problem solving!!
« Reply #2 on: October 14, 2012, 12:45:11 AM »
Quote from: thare22 on October 13, 2012, 09:40:08 PM
I dont even know where to start here. . . .

Subtract the weight of the empty bottle from the weight of the bottle containing the wine. That gives you the weight of the wine. Take 11% of that which gives you the weight of the alcohol in the wine per 100g. That answer times 2.75 gives the weight in grams in the drink. Convert it to ounces using the conversion factors provided.
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