How many moles of NaCl are in a 1 kg salt packet? Write the answer to one decimal place.
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Ответ:
1Kg = 1000g
the molar mass of NaCl = 58.44 g/mol
number of moles = Mass / Molar mass
n = 1000g ÷ (58.44 g/mol)
n = 17.1115 mol
since you want the answer in one decimal place
then number of moles = 17.1 moles
Ответ:
The angle of sunlight varies on different parts of Earth at different times.
Explanation:
The seasons are a result of the Earth's tilt and are caused by the differential intensity of sunlight on different areas of Earth across the year.
Hope this is helpful to you!