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Yogita Ingle 6 years, 6 months ago
Any substance that contains only one kind of an atom is known as an element.
An element is a form of matter that cannot be broken down by chemical reactions into simpler substances.
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Gaurav Seth 6 years, 6 months ago
During the reaction, ammonia formed 56.67 kg.
Explanation:
A balanced reaction between nitrogen and hydrogen is as follows:
From the reaction 28 g of nitrogen is reacted with 6 g of hydrogen to form 34 grams of ammonia.
Therefore, 6 g of hydrogen reacts with 28 g of nitrogen to form 34 grams of .
From the given,
Weight of hydrogen = 1 kg
Therefore, 10 kg of hydrogen reacts with 46.67 kg of nitrogen.
Amount of ammonia = 10 kg + 46.67 kg = 56.67 kg
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Density of Water is :
{tex}1 g c c ^ { - 1 } = \frac { 1 g } { m l }{/tex}
Total Mass of 36 ml water molecules =
{tex}36 m l \times \frac { 1 g } { 1 m l } = 36 g{/tex}
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Yogita Ingle 6 years, 6 months ago
Trigonal Planar Shape of Molecule:
- In this type of molecule, we find three molecules attached to a central atom.
- They are arranged in such a manner such that repulsion between the electrons can be minimized (toward the corners of an equilateral triangle).
- Example: BF3
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When a substance does not contain discrete molecules as their constituent units and have a three-dimensional structure, formula mass is used to calculate molecular mass which is sum of all the atomic masses of atom present in the formula.
For example, in sodium chloride (NaCl) , sodium as chloride ions are arranged in a three-dimensional structure i.e. there are two different entities and not a single entity (like in a molecule). Therefore, the formula mass of NaCl = Mass of Na +Mass of Cl = (23 +35.5)u = 58.5 u.
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Tanya Zanzad 6 years, 6 months ago
1Thank You