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damaskus [11]
3 years ago
15

Why does hot water turn purple when poured over red cabbage leaves?

Chemistry
2 answers:
Xelga [282]3 years ago
6 0

Answer:

By making it simpler for the pigment to dissolve in water by blending the cabbage leaves with warm water, you may extract it quickly.

Explanation:

geniusboy [140]3 years ago
3 0

Answer:

<em> </em><em>Pouring hot water over a red cabbage would turn water into purple because the dye in the cabbage called anthocyanin is being extracted. This pigment is used as an indicator for acids and bases. When it is added to an acid, it changes the color of the solution into pink while it changes into blue when added to a basic solution.</em>

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How to find the solute and solvent
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Which kinds of bonds are present in a single water molecule?.
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A compound has the following percentages by mass: barium, 58.8%; sulfur, 13.74%; oxygen, 27.43%. Determine the empirical formula
lys-0071 [83]

Answer:

BaSO₄

Explanation:

Let's assume we have 100 g of the compound. If that's the case we would have:

  • 58.8 g of Ba
  • 13.74 g of S
  • 27.43 g of O

Now we <u>convert the masses of each element into moles</u>, using their <em>respective molar masses</em>:

  • 58.8 g Ba ÷ 137.327 g/mol = 0.428 mol Ba
  • 13.74 g S ÷ 32 g/mol = 0.429 mol S
  • 27.43 g O ÷ 16 g/mol = 1.71 mol O

We <u>divide those moles by the lowest number among them</u>:

  • 0.428 mol Ba / 0.428 = 1
  • 0.429 mol S / 0.428 ≈ 1
  • 1.71 mol O / 0.428 = 4

We can express those results as Ba₁S₁O₄, meaning the empirical formula is thus BaSO₄.

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