Answer: -
(a) 1.54 x 10² pm
(b) 1.3 x 10⁶ is the number of carbon atoms could be aligned side by side in a straight line across the width of 0.2 mm.
Explanation: -
1 å = 10² pm
Diameter of a carbon atom = 1.54 å = 1.54 x 10² pm
1 mm = 10⁹ pm
Total distance = 0.2 mm = 0.2 x 10⁹ pm
Number of carbon atoms could be aligned side by side in a straight line across the width = Total distance / Diameter of a carbon atom
= 
= 1.3 x 10⁶
Answer:
The weight percent of NaCl in the container is 21.5%
Explanation:
Given that,
Mass of NaCl = 168.90 gram
Mass of water = 616.00 grams
We need to calculate the weight percent of NaCl in the container
Using formula of percentage of weight

Put the value into the formula


Hence, The weight percent of NaCl in the container is 21.5%
Answer:
6.8746142857L
Explanation:
Using ideal gas equation PV=nRT
3.50V=5.63*.0821L * atm/mol*K * (20.0C+273.15C)
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The molecule of that compound! Hope this helps!