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mariarad [96]
3 years ago
5

Write the correct answers.

Chemistry
1 answer:
Ilya [14]3 years ago
7 0

Answer:

pour in hot water and It will disolve

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A class of substances known as __________ are used for their medicinal properties.
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Answer: Alkaloids

A class of substances known as alkaloids are used for their medicinal properties.

Explanation:

Alkaloids are small but complex organic substances with at least one nitrogen atom in its ring structure. Hence, they have strong basic properties, and are produced in naturally by some plants.

Examples of alkaloids and their medicinal properties are as follows:

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When 32 grams of aluminum react, the actual yield is 105.5 grams, what is the percent yield?
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329.7%

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Percent Yield = Actual Yield/ Theoretical Yield x 100%

Percent Yield = 105.5g/32 x 100% = 329.69 ≈ 329.7 %

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50.0 mL of an HNO^3 solution were titrated with 36.90 mL of a 0.100 M LiOH solution to reach the equivalence point. What is the
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0.0738 M

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HNO3 +LiOH = LiNO3 + H2O

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M(HNO3) = 0.100*36.90/50.0 M = 0.0738 M

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