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Nitella [24]
1 year ago
5

A sample of X is carefully weighed and put inside a sealed calorimeter. The calorimeter is heated electrically, and the amount o

f heat added determined by monitoring the electrical current used. The temperature of X is carefully measured, and from the temperature change and the amount of heat added the value of H
may be calculated.
Is this a physical or chemical property?
Chemistry
1 answer:
mixer [17]1 year ago
8 0

The value of the heat of combustion (H) that is calculated here is a chemical property.

<h3>What is the heat of combustion?</h3>

The heat of combustion is the energy that is given up when a substance is burnt in a calorimeter. The heat of combustion is often measured by the use of a calorimeter.

Hence, the value of the heat of combustion (H) that is calculated here is a chemical property.

Learn more about heat of combustion:brainly.com/question/14317568

#SPJ1

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What kind of water is found in littoral zone of a lake?
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3 years ago
5.2 X 1026 molecules of CH4
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8 0
3 years ago
2. Calculate the atomic mass of an element that has two isotopes, each with 50.00% abundance. One isotope has a mass of 63.00 am
melamori03 [73]

Answer:

The atomic mass of element is 65.5 amu.

Explanation:

Given data:

Abundance of X-63 = 50.000%

Atomic mass of  X-63 = 63.00 amu

Atomic mass of X-68 = 68.00 amu

Atomic mass of element = ?

Solution:

Abundance of X-68 = 100-50 = 50%

Average atomic mass = (abundance of 1st isotope × its atomic mass) +(abundance of 2nd isotope × its atomic mass)  / 100

Average atomic mass  = (50×63)+(50×68) /100

Average atomic mass =  3150 + 3400 / 100

Average atomic mass  = 6550 / 100

Average atomic mass = 65.5 amu.

The atomic mass of element is 65.5 amu.

7 0
3 years ago
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