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Nat2105 [25]
3 years ago
14

The molar mass of NaCl is 58.44 g/mol. What is the molarity of a solution that

Chemistry
1 answer:
Sauron [17]3 years ago
3 0
3:00m cu of the current in electrical engineering and electrical toques
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3. A student measured 15.0 grams of ice in a beaker. The beaker was then
gregori [183]

Answer:

The heat that was used to melt the 15.0 grams of ice at 0°C is 4,950 Joules

Explanation:

The mass of ice in the beaker = 15.0 grams

The initial temperature of the ice = 0°C

The final temperature of the ice = 0°C

The latent heat of fusion of ice = 330 J/g

The heat required to melt a given mass of ice = The mass of the ice to be melted × The latent heat of fusion of ice

Therefore, the heat, Q, required to melt 15.0 g of ice = 15.0 g × 330 J/g = 4,950 J

The heat that was used to melt the 15.0 grams of ice = 4,950 Joules.

3 0
3 years ago
HELP!!! An experiment was conducted to determine if the intermolecular forces in two liquids affects their boiling points. Each
ExtremeBDS [4]

Answer: it would be b time taken by the glass surface to dry

Explanation:

i had took the test and i got it right

4 0
3 years ago
PLEASE HURRY!! WILL GIVE BRAINLIEST!!!!
Snowcat [4.5K]

Answer:

a

Explanation:

8 0
3 years ago
What is the change in internal energy ( ΔU ) of the system if q = –8 kJ and w = –1 kJ for a certain process?
Radda [10]

Answer:

Change in internal energy (ΔU) = -9 KJ

Explanation:

Given:

q = –8 kJ [Heat removed]

w = –1 kJ [Work done]

Find:

Change in internal energy (ΔU)

Computation:

Change in internal energy (ΔU) = q + w

Change in internal energy (ΔU) = -8 KJ + (-1 KJ)

Change in internal energy (ΔU) = -8 KJ - 1 KJ

Change in internal energy (ΔU) = -9 KJ

6 0
3 years ago
A sample of gas at 30 degrees celcius occuoies 2.5 L at 1.3 atm. What volume will the sample occupyif pressure changes to 2 atm
Irina18 [472]

Answer: 1.73L

Explanation:Please see attachment for explanation

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3 years ago
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