SmartServe Ontario Practice Exam 2025 - Free SmartServe Practice Questions and Study Guide

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How many Standard Drinks are there in 3 ounces of spirits with 40% alcohol?

1 standard drink

2 standard drinks

To determine the number of Standard Drinks in 3 ounces of spirits with 40% alcohol, it's essential to understand what constitutes a Standard Drink. In Canada, a Standard Drink is defined as containing 13.6 grams of pure alcohol, which is typically found in:

- 1.5 ounces (44.7 mL) of spirits (40% alcohol by volume)

To calculate the amount of pure alcohol in 3 ounces of spirits, we first convert ounces to milliliters, noting that 1 ounce is approximately 29.57 mL. Thus, 3 ounces is about 88.7 mL. With spirits at 40% alcohol, the amount of pure alcohol in 3 ounces is calculated as:

88.7 mL x 0.40 = 35.48 mL of pure alcohol.

Next, to find how many Standard Drinks this equates to, we convert milliliters of alcohol to grams. The density of ethanol is around 0.789 g/mL, so:

35.48 mL x 0.789 g/mL ≈ 27.97 grams of pure alcohol.

Dividing this total by the weight of alcohol in a Standard Drink (13.6 grams

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3 standard drinks

4 standard drinks

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