1) 50.0 mL of water is measured out in a graduated cylinder. A rock with the mass of

Chemistry

1 answer:

SashulF [63]2 years ago

7 0

Volume=Rised height-Measured height=60-50=10mL
Mass=20.3g

$\\ \tt\longmapsto Density=\dfrac{Mass}{Volume}$

$\\ \tt\longmapsto Density=\dfrac{20.3}{10}$

$\\ \tt\longmapsto Density=203g/mL$

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According to the Lewis model of acids and bases, amines behave as bases in water because __________. View Available Hint(s) Acco

lyudmila [28]

Answer: the unshared pair of electrons on the nitrogen can accept a proton

Explanation:

According to the Lewis concept, an acid is defined as a substance that accepts electron pairs and base is defined as a substance which donates electron pairs.

Amines have a general molecular formula of $RNH_2$ which has lone pair of electrons on nitrogen and thus is able to donate electrons to a lewis acid which is short of electrons. In other words nitrogen can accept a proton.