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dusya [7]
3 years ago
15

A sample of iron has a volume of 12 mL. If the mass of this object is 94 g, what is the density of iron? Will it sink or float i

n water? *
Chemistry
1 answer:
OLga [1]3 years ago
3 0

Answer:

density = 7.83g/mL

It will sink in water.

Explanation:

D = mass/volume

94/12 = 7.83 g/mL

density of water is 1g/mL

Object is more dense than water, meaning it will sink.

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Answer: His and Lys are deprotonated but Asp will be protonated.

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As the pH is given as 7.4 and pK of His is given as 6.00. There will occur a positive charge on His when it's pH < pK therefore, it is neutral at the given pH.

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