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dimaraw [331]
3 years ago
13

What is the energy needed to raise 2.004g of water from 89.0°C to 139.0°C?

Chemistry
1 answer:
gulaghasi [49]3 years ago
6 0

Answer:

The answer to your question is E = 419.435 J

Explanation:

Data

Mass = m = 2.004 g

Temperature 1 = T1 = 89°C

Temperature 2 = T2 = 139°C

Specific heat  of water = Cp = 4.186 J/g°C

Energy = E = ?

Formula

E = mCp(T2 - T1)

Substitution

E = (2.004)(4.186)(139 - 89)

Simplification and result

E = 8.3887(50)

E = 419.435 J

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Likurg_2 [28]

Answer : The mass of nitric acid is, 214.234 grams.

Solution : Given,

Moles of nitric acid = 3.4 moles

Molar mass of nitric acid = 63.01 g/mole

Formula used :

\text{Mass of }HNO_3=\text{Moles of }HNO_3\times \text{Molar mass of }HNO_3

Now put all the given values in this formula, we get the mass of nitric acid.

\text{Mass of }HNO_3=(3.4moles)\times (63..01g/mole)=214.234g

Therefore, the mass of nitric acid is, 214.234 grams.


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3 years ago
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julia-pushkina [17]

Answer:

True

Explanation:

3 0
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Alenkasestr [34]

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3 years ago
25.0 g of barium hydroxide is dissolved in 120.0g of water. What is the morality?
Vinvika [58]
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# moles = mass / molar mass

Molar mass calculation

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Atomic masses
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Answer:

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Explanation:

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