An atom has atomic number of 34. how many protons and electrons does it have? what is its symbol? 34 protons and electrons. se l
ist the number of
1 answer:
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Answer:
Explanation:
<u>Given:</u>
Density = ρ = 0.8 g/cm³
Volume = V = 225 cm³
<u>Required:</u>
Mass = m = ?
<u>Formula:</u>
m = ρV
<u>Solution:</u>
m = (0.8)(225)
m = 180 g
Hope this helped!
<h2>~AnonymousHelper1807</h2>Answer: Molar mass of is 249.68 g/mol.
Explanation:
Molar mass is the mass of 1 mole of the molecule. It is calculated by adding masses of all the atoms in the given molecule.
contains one atom of copper , 1 atom of sulphur, 9 atoms of oxygen and 10 atoms of hydrogen
Mass of copper = 63.5 g/mol
Mass of sulphur = 32.06 g/mol
mass of oxygen = 16.00 g/mol
Mass of hydrogen = 1.008 g/mol
Thus mass of = 63.5(1)+32.06(1)+16.00(9)+1.008(10)=249.68 g
Molar mass of is 249.68 g/mol.