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ivolga24 [154]
2 years ago
12

Perform the following calculation and report the answer with the correct number of significant figures.

Chemistry
2 answers:
Paul [167]2 years ago
8 0

Answer:

81.72 +0.73=82.45

Explanation:

  • you need to add it

1

81.72

+0.73

= 82.45

4vir4ik [10]2 years ago
4 0

82.72 + 0.73 = 82.45

Explanation:

0.72+0.73 = 1.45

Therefore 81+1.45= 82.45 ( Integer in addition with a decimal number).

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For all three questions, we will use the fact that

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1) For 175 mL of solution at 0.203 M, this means that:

  • 0.203 = (moles of solute)/0.175
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Considering the hydrochloric acid solution, if we have 0.035523 mol, then:

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<u />

2) If there is 20.3 mL = 0.0203 L, then:

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This means that the molarity of the diluted solution is:

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3) If we need 1.50 L of 0.700 M solution, then:

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Considering the 9.36 M acid solution, from which we need 1.05 mol of perchloric acid from,

  • 9.36 = 1.05/(liters of solution)
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8 0
1 year ago
What is an oxidation reaction? ​
kow [346]
<h3>Definition:</h3>
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<h3>For Example:</h3>

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On the attached picture it is shown required alkoxide ion, <span>alkyl(aryl)bromide and the ether that forms from the reactants. </span>

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3 years ago
How many moles of solute are in 250.0 mL of a 3.00 M HCl solution?
cestrela7 [59]
0.250 L*3M=0.250 L*3mol/L= 0.750 mol
8 0
3 years ago
Which one of the following compounds is not covalent?
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3 years ago
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