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Vsevolod [243]
3 years ago
10

B.) what fraction of a mole is 10g of clindamycin?

Chemistry
1 answer:
Alex_Xolod [135]3 years ago
3 0
The molar mass of clindamycin, or C18H33ClN2O5S, is <span>424.98 grams. Divide how much you have by the amount per mole.

10 g / 424.98 (grams per mole) = .024 moles of clindamycin</span>
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Calculate the moles and grams of solute in each solution. D. 2.0 L of 0.30M Na2SO4. I already have A, B, and C. Thanks!
e-lub [12.9K]
Find the number of moles
C = n / V
C(Concentration) = 0.30 moles / L
V ( Volume) = 2 L
n = ??
n = C * V
n = 0.30 mol / L * 2 L
n = 0.60 mol


Find the molar mass
2Na = 23 * 2 = 46 grams
1S   = 32 * 1 = 32 grams
O4   = 16 * 4 = 64 grams
Total =            142 grams / mol

Find the mass
n = given mass / molar mass
n = 0.06 mol
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given mass = ???

given mass = molar mass * mols
given mass = 142 * 0.6
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85.2 are in a 2 L solution that has a concentration of 0.6 mol/L


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Answer: Option (b) is the correct answer.

Explanation:

Porosity means the ease with which a fluid can pass through between a rock or cracks etc.

If particles of a soil are flat and even if they are sorted then there will rarely be any space available for fluid or water to pass through it.

If soil particles are round in shape and are sorted then there will be space available for the fluid to pass through it. Hence, this type of soil will be most porous.

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Hence, we can conclude that out of the given options, soil B - round, sorted particles is the most porous.

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I think that it would be <span>either ionic bonds or covalent bonds</span>
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