PLEASE HELP!!
How many moles are present in 431.56 grams of sodium bicarbonate ( NaHCO3)?
Molar mass of sodium bicarbonate (NaHCO3) = 84.01 g/mol
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Ответ:
5.14mole
Explanation:
Given parameters:
Mass of sodium bicarbonate = 431.56g
Unknown:
Number of moles = ?
Solution:
To find the number of moles, we use the expression below:
Number of moles =
Molar mass = 84.01g/mol
Number of moles =
= 5.14mole
Ответ:
think your answer is The breaking of rock into smaller pieces from chemical processes
Explanation:
Physical weathering is caused by physical processes such as changes in temperature, freezing and thawing, and the effects of wind, rain and waves.