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3 years ago

9

A crystallographer measures the horizontal spacing between molecules in a crystal. The spacing is 19.78 nm. What is the total wi

dth of a crystal in millimeters 105 molecules across? Write your answer as a decimal.

1 answer:

kobusy [5.1K]3 years ago

6 0

1 nm = 0.000001 mm

105 * 19.78 * 0.000001 = 0.0020769 mm

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4 years ago

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3 years ago

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The question is incomplete, here is the complete question:

What volume (mL) of the partially neutralized stomach acid having concentration 2M was neutralized by 0.01 M NaOH during the titration? (portion of 25.00 mL NaOH sample was used; this was the HCl remaining after the antacid tablet did it's job)

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$n_2,M_2\text{ and }V_2$ are the n-factor, molarity and volume of base which is NaOH.

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4 years ago