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3 years ago

If a tube contains 2.0oz of sunscreen, how many kilograms of benzyl salicylate are needed to manufacture 325 tubes of sunscreen

Chemistry

1 answer:

Vadim26 [7]3 years ago

4 0

Answer:

Now it is given here that there are 325 tubes that are manufactured for sunscreen. And we also know that the percentage of sunscreen in benzyl salicylate is 2.5% here in one tube we have 2 Oz of sunscreen.

Explanation:

So sunscreen in 325 tubes will be 2 x 325= 650 Oz. Since we know the amount of sunscreen in 325 tubes the amount of Benzyl salicylate in all 325 tubes will be 650 x 0.025 = 16.25 Oz

Now this can be converted into kg as 0.46 kg.

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Answer:

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3 years ago

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Answer:

H+ ( aq ) + HCO3- ( aq ) ------> H2O( l ) + CO2 ( g )

Explanation:

The complete reaction when hydroiodic acid and sodium hydrogen carbonate combine, would be as follows -

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net reaction

H2CO3 is highly unstable, and thus decomposes into the water and carbon dioxide you see present as the reactants. If you didn't know already, H2CO3 is also reffered to as carbonic acid. The rest of the elements present on the reactant side are Iodine and Sodium, which is why they are present on the product side as NaI.

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The spectator ions in this reaction are I- and Na+, so canceling them out, you would receive the following net ionic equation -

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3 years ago

The pH of a solution is measured as 4.5. What is the hydrogen ion concentration of the solution?

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Answer:

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Explanation:

Given data:

pH of solution = 4.5

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pH = -log [H⁺]

we will rearrange this formula:

[H⁺] = 10∧-pH

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[H⁺] = 3.16 × 10⁻⁵ mol/L

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