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vfiekz [6]
3 years ago
9

PLEASE HELP WILL GIVE BRAINLIEST

Chemistry
1 answer:
bija089 [108]3 years ago
3 0

Answer:

sorry i'm not a scientist but i think it's C

Explanation:

sorry again if i get it wrong for u :(

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How many moles of trifluoromethanoic acid (CHF3O3S) are present in 9.0345 × 1024 molecules of (CHF3O3S)?
timama [110]
1 mole ------------ 6.02x10²³ molecules
? moles ----------- 9.0345x10²⁴ molecules

( 9.0345x10²⁴) x 1 / 6.02x10²³ =

9.0345x10²⁴ / 6.02x10²³ => 15.007 moles


5 0
3 years ago
How many moles would be in 85.OmL of 0.750M KOH?
Harlamova29_29 [7]

Answer: There are 0.0637 moles present in 85.0 mL of 0.750 M KOH.

Explanation:

Given: Volume = 85.0 mL (1 mL = 0.001 L) = 0.085 L

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It is known that molarity is the number of moles of solute present in liter of a solution.

Therefore, moles present in given solution are calculated as follows.

Molarity = \frac{moles}{Volume (in L)}\\0.750 M = \frac{moles}{0.085 L}\\moles = 0.0637 mol

Thus, we can conclude that there are 0.0637 moles present in 85.0 mL of 0.750 M KOH.

7 0
3 years ago
Cereal is an example of what type of matter?
Delvig [45]
Cereal is a heterogeneous mixture because it is composed of many different types of ingredients.
5 0
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Describe what happens to the potential energy and the kinetic energy of a ball as it rolls down a hill from a position of rest a
NemiM [27]
Potential energy is turned in to kinetic and kinetic I believe is being used in motion. potential means stored kentic means energy of movement.
4 0
3 years ago
Nitrogen monoxide is produced by combustion in an automobile engine. What volume of oxygen gas is required to react completely w
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Answer:

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Explanation:

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