Answer:
- the specific gravity of the block is 0.75
- the specific gravity of the solution is 1.5
Explanation:
Given the data in the question;
first we find the specific gravity of a block SGB
SGB = ( block vol below / total block vol ) × the specific gravity of water
we substitute
SG = ( 1.5 / (1.5 + 0.5 ) ) × 1
SG = ( 1.5 / (1.5 + 0.5 ) ) × 1
SG = (1.5 / 2) × 1
SG = 0.75
Therefore, the specific gravity of the block is 0.75
specific gravity of solution SG
SG = (total block vol / block below ) × SG
we substitute
SG = ( 2 / 1 ) × 0.75
SG = 2 × 0.75
SG = 1.5
Therefore, the specific gravity of the solution is 1.5
Based on the given molecular formula, the molar mass of ethylene glycol is 62 g/mol. We solve for the number of moles of the solute,
n = (7.1 kg)(1000 g/ 1 kg) / 62g/mol = 114.52 mol
Then, we divide this value by the given mass of the water in kg
m = (114.52 mol) / 1.2 kg = 95.43 m
Thus, the molality of the substance is approximately equal to 95.43 m.
Answer:
it contains non polar covalent bond because both shares 2 equal number of electrons between eachother.
<em>as</em><em> </em><em>non</em><em> </em><em>polar</em><em> </em><em>covalent</em><em> </em><em>bond</em><em> </em><em>is</em><em> </em><em>defined</em><em> </em><em>as</em><em> </em><em>the</em><em> </em><em>type</em><em> </em><em>of</em><em> </em><em>covalent</em><em> </em><em>bond</em><em> </em><em>in</em><em> </em><em>which</em><em> </em><em>there</em><em> </em><em>is</em><em> </em><em>equal</em><em> </em><em>sharing</em><em> </em><em>of</em><em> </em><em>electrons</em><em> </em><em>takes</em><em> </em><em>place</em><em>.</em>
<em><u>hope</u></em><em><u> </u></em><em><u>it helps</u></em><em><u>.</u></em><em><u>.</u></em>