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Pavel [41]
3 years ago
12

If you stirred some sugar in water the sugar would disappear but the water would taste sweet. This is because __________ change

occurred.
A. a physical
B. a chemical
C. both a physical and a chemical
D. neither a physical nor a chemical
Chemistry
1 answer:
olganol [36]3 years ago
7 0

a hopefully this is helpful

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Answer:

mL of NaOH required =29.9mL

Explanation:

Let us calculate the moles of vitamin C in the tablet:

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moles=\frac{mass}{molarmass}=\frac{500mg}{176.14}=\frac{0.5}{176.14}=0.0028

Thus we need same number of moles of NaOH to reach the equivalence point.

For NaOH solution:

moles=MolarityXvolume=0.095Xvolume

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7 0
4 years ago
A 25 liter balloon holding 1.5 moles of carbon dioxide leaks. If we are able to determine that 0.9 moles of carbon dioxide escap
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10 Litre

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Using the relation :

(n2 * v1) / n1 = (n2 * v2) / n2

v2 = (n2 * v1) / n1

v2 = (0.6 mole * 25 Litre) / 1.5 mole

v2 = 15 / 1.5 litre

v2 = 10 Litre

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