Answer:
The answer is
<h2>2.55 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula

From the question
mass = 416 g
volume = final volume of water - initial volume of water
volume = 523 - 360 = 163
volume = 163 mL
The density is

We have the final answer as
<h3>2.55 g/mL</h3>
Hope this helps you
In chemistry, the molar mass of a chemical compound is defined as the mass of a sample of that compound divided by the amount of substance in that sample, measured in moles.
Answer:
Molar mass of MgCl2 is 95 g/mol
Mg = 24 g/mol and Cl = 35.5 ×2 = 71 g/mol
moles = mass given/ molar mass
= 2.7/95 = 0.028 mol
volume = 250/1000 = 0.25 dm3 (ml is the same as dm3)
molarity of MgCl2 = moles/volume
= 0.028/0.25
= 0.112 mol/dm3
The fourth option on Edgen, "two alcohol functional groups". You're welcome :)
Answer:
hydrogen bonding
Explanation:
The two strands of DNA are held together by hydrogen bonds between complimentary nucleotides.