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julia-pushkina [17]
3 years ago
10

Wood is made up partly of cellulose, about 45% by weight. Cellulose is a long chain polysaccharide made up

Chemistry
1 answer:
lions [1.4K]3 years ago
8 0
Hiiiiiiiiiiiiiiiiiiiiiii
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Calculate the molarity of 13.1 g of NaCl in 727 mL of solution
valentina_108 [34]

Answer:

The molarity of the solution is 0,31 M

Explanation:

We calculate the weight of 1 mol of NaCl from the atomic weights of each element of the periodic table. Then, we calculate the molarity, which is a concentration measure that indicates the moles of solute (in this case NaCl) in 1000ml of solution (1 liter)

Weight 1 mol NaCl= Weight Na + Weight Cl= 23 g + 35, 5 g= 58, 5 g

58, 5 g-----1 mol NaCl

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727 ml solution------ 0, 224 mol NaCl

1000ml solution------x= (1000ml solutionx0, 224 mol NaCl)/727 ml solution

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3 years ago
Why are we pulled to the center of the Earth and not into the much larger sun?
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The sun's gravity pulls on the earth, and the earth pulls back on the sun at the same time. This is why the center of the solar system is not the center of the sun. As one gravitational body gets bigger than the other, it circles closer to the center of the system (shown in red).

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hope this helps...

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3 years ago
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