the mass of a density bottle is 20g when empty , 70 g when full of water and 55g when full of second liquid. what is the mass of the water?
What is the mass of liquid?
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the mass of a density bottle is 20g when empty , 70 g when full of water and 55g when full of second liquid. what is the mass of the water?
What is the mass of liquid?
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Answer:
(a) Calculate the gram molecular mass of water from the values of gram atomic mass of hydrogen and of oxygen.
Gram atomic mass of hydrogen =1g
Gram atomic mass of oxygen =16g
(b) Atoms and molecules are the building blocks of matter. List out any three differences between them.)
The gram molecular mass is the sum of the gram atomic masses.
The atomic mass of H is 1 ans O is 16.
∴ Gram molecular mass = 2×1+16 =18g.
(b)
Atoms are tiny particles that make up the universe, while molecules are made from atoms
Atoms make up elements whereas molecules make up compounds.
Molecules are made of atoms. Atoms are made of protons, neutrons, and electrons.
Explanation:
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