The amount of oxygen formed when 12.26 g of KClO3 is heated is ________.

Answers

Answer 1

Answer:

Answer:

approximately 4.8 grams of oxygen gas is formed.

Explanation:

To determine the amount of oxygen (O2) formed when 12.26 grams of potassium chlorate (KClO3) is heated, we need to consider the chemical reaction that occurs during this process. When KClO3 is heated, it decomposes into potassium chloride (KCl) and oxygen gas (O2).

The balanced chemical equation for this reaction is:

2 KClO3(s) → 2 KCl(s) + 3 O2(g)

From the equation, we can see that 2 moles of KClO3 produce 3 moles of O2.

Calculate the molar mass of KClO3:

K: 39.10 g/mol

Cl: 35.45 g/mol

O: 16.00 g/mol

Molar mass of KClO3 = (39.10 + 35.45 + 3 * 16.00) g/mol = 122.55 g/mol

Calculate the number of moles of KClO3 in 12.26 grams:

Moles of KClO3 = (12.26 g) / (122.55 g/mol) = 0.1 moles

Now, we can determine the number of moles of O2 produced using the mole ratio from the balanced equation:

Moles of O2 = (0.1 moles of KClO3) * (3 moles of O2 / 2 moles of KClO3) = 0.15 moles

Finally, convert moles of O2 to grams:

Mass of O2 = (0.15 moles) * (32.00 g/mol for O2) = 4.8 grams

So, when 12.26 grams of KClO3 is heated, approximately 4.8 grams of oxygen gas is formed.

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Answers

acetic acid is the scientific name for vinegar

The word "vinegar" derives from the French vin aigre, meaning "sour wine." Its called Acetic acid or Ethanoic acid.
Its chemical formula is : CH3COOH or HC2H3O2.

- - - - -

The proper name for vinegar is vinegar.
It consists of roughly 15% acetic acid and 85% water, with a small amount of natural vegetable colorants and volatiles (hence the differences in colours and odours between brown vinegar, white vinegar, cider vinegar, balsamic vinegar, etc.)

The acid in vinegar is indeed acetic acid; however, 90 percent of all the acetic acid on the market is made in chemical plants. Almost all of that - 83 percent of the total - is made by reacting methanol and carbon monoxide in the formula

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The rest is made by oxidizing either acetaldehyde or ethylene.

Vinegar is always made by fermenting fruit juices. It is a two-stage process, in which yeasts convert fruit juice to wine, then acetobacter bacteria convert the alcohol in wine to acetic acid. Because many nations' food laws prohibit the use of vinegar in edibles that is not made through the fermentation of fruit juice, they are very careful to only call fruit juice-derived acetic acid "vinegar."

Calculate the molar mass
FeCl3
Fe2(SO4)3
PbO
PbO2
Pb3O4

Answers

To find molar mass: look for each element on the table and find their atomic masses. Then add each atomic mass to find the molar mass. If there is a subscript then that means that there is 3 of that number. For atomic mass round to the nearest hundredths
FeCl3= 162.2
Fe2(SO4)3= 354.88
PbO=223.2
PbO2 = 239.2
Pb3O4=685.6

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Answers

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Answers

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Answers

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