Is CuS an ionic, non polar or polar covalent bond and why
2 answers:
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Answer:
The wavelength of this light is 780.4 nm.
Explanation:
Given that,
The frequency of laser light,
We need to find the wavelength of this light.
We know that,
Where
is the wavelength of light
So,
So, the wavelength of this light is 780.4 nm.
Explanation:
Given mass of sugar = 1.202 g
Molar mass of the sugar , = 342.29 g/mol
a) Number of moles of sugar
Number of moles of sugar in 1.202 grams is 0.0035 moles
b)Moles of each element in
In a molecular formula of sugar there are 12 carbon, 22 hydrogen and 11 oxygen atoms
Moles of an element in molecule =
number of atoms of that element in a molecular formula × number of moles of compound
Moles of carbon = 12 × 0.0035 = 0.042 moles
Similarly
Moles of hydrogen = 22 × 0.0035 = 0.077 moles
Moles of oxygen =11 × 0.0035 = 0.0385 moles
c) Number of atoms of each type in
Number of carbon atoms =
Number of hydrogen =
Number of oxygen atoms =