An empty beaker has a mass of 75.0 g. Salt is added to the beaker until it has a total mass of 108.06 g?
2016-11-02 4:15 am
An empty beaker has a mass of 75.0 g. Salt is added to the beaker until it has a total mass of 108.06 g. Using the correct number of significant figures, what is the mass of the salt?
回答 (2)
2016-11-02 4:25 am
(Mass of beaker) + (Mass of salt) = Total mass
(75.0 g) + (Mass of salt) = 108.06 g
Mass of salt = (108.06 - 75.0) g = 33.06 g ≈ 33.1 g (to 1 decimal place)
The mass of beaker is to 1 decimal place while that of the salt is to 2 decimal places. Hence, the mass of the salt may be rounded to 1 decimal place.
(75.0 g) + (Mass of salt) = 108.06 g
Mass of salt = (108.06 - 75.0) g = 33.06 g ≈ 33.1 g (to 1 decimal place)
The mass of beaker is to 1 decimal place while that of the salt is to 2 decimal places. Hence, the mass of the salt may be rounded to 1 decimal place.
2016-11-02 4:16 am
33.6 grams! Your Welcome!
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