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Arte-miy333 [17]
2 years ago
14

Describe the concentration of hydronium ions and hydroxide ions when a base is added slowly to a white vinegar solution. The pH

of white vinegar is 3.1. Explain
Chemistry
1 answer:
aalyn [17]2 years ago
7 0

Answer:as you add the base it added some  PH. The Ph lever of white winegaer is2.4 - 3.4

Explanation:

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Explain, in terms of energy, why the temperature of the reaction mixture increases
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3 years ago
Certain hydrocarbon is 92.3 % carbon and 7.7 % hydrogen by mass.If the molar mass of the hydrocarbon is approximately 40 g/mol,
zimovet [89]

Answer:

The hydrocarbon has a molecular formula of C3H3

Explanation:

Step 1: Data given

Suppose the mass of the compound is 100 grams

A hydrocarbon contains:

 ⇒ 92.3 % carbon = 92.3 grams

 ⇒ 7.7 % hydrogen = 7.7 grams

Molar mass of the compound is 40 g/mol

Molar mass of carbon = 12.01 g/mol

Molar mass of hydrogen = 1.01 g/mol

Step 2: Calculate moles

Moles = mass / molar mass

Moles carbon = 92.3 grams / 12.01 g/mol

Moles carbon = 7.69 moles

Moles hydrogen = 7.70 grams / 1.01 g/mol

Moles hydrogen = 7.62

Step 3: Calculate mol ratio

We divide by the smallest amount of moles

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Hydrogen: 7.62/7.62 = 1

The empirical formula is CH

The molar mass is 13.02 g/mol

Step 4: Calculate the molecular formula

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We need to multiply the empirical formula by 3 to get the molecular formula

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