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ddd [48]
2 years ago
11

A student adds sugar to a cup of iced tea and a cup of hot tea. She notices that the time needed for the sugar to dissolve in ea

ch cup is different. She thinks this has something to do with the temperature of the tea. She wants to design an experiment to see if she is correct. Write a hypothesis based on the student's observation
Chemistry
1 answer:
Natali [406]2 years ago
4 0

Explanation:

the experiment conducted is the student adds sugar to a cup of iced tea and a cup of hot tea. She notices that the time needed for the sugar to dissolve in each cup is different. She thinks this has something to do with the temperature of the tea

hypothesis: If the student puts the sugar in both glasses of tea, then the sugar in the hot tea should dissolve quicker.

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Answer:

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marusya05 [52]

Boyle's Law

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1 year ago
How much energy, in joules, does 150.0 g of water with an initial temperature of 25 C need to absorb be raised to a final temper
satela [25.4K]

Answer:

31395 J

Explanation:

Given data:

mass of water = 150 g

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Energy absorbed = ?

Solution:

Formula:

q = m . c . ΔT

we know that specific heat of water is 4.186 J/g.°C

ΔT = final temperature - initial temperature

ΔT = 75 °C - 25 °C

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now we will put the values in formula

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q = 150 g × 4.186 J/g.°C × 50 °C

q = 31395 J

so, 150 g of water need to absorb 31395 J of energy to raise the temperature from 25°C to 75 °C .

5 0
2 years ago
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suter [353]

Answer:

63.53% yield

Explanation:

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First we must find the limiting reactant

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so we know NaCl is the limiting

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2 years ago
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3 years ago
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