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torisob [31]
3 years ago
13

A neutral group of atoms joined together by covalent bonds

Chemistry
1 answer:
katrin [286]3 years ago
7 0
A MOLECULE
A molecule is a true representative of a covalent bond.
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What is infrared energy? simplify it
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Infrared energy is the energy of light between microwave radiation and Ultraviolet radiation
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2 years ago
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If an unknown sample contains 39.04% sulfuric acid by mass, then a 0.9368 g of that sample would require _____ mL of 0.2389 M Na
bonufazy [111]

Answer:

A) 31.22

Explanation:

The reaction of sulfuric acid with NaOH is:

H₂SO₄ + 2 NaOH → Na₂SO₄ + 2H₂O

To solve this problem we need to determine the moles of acid that will react, and, using the chemical equation we can determine the moles of NaOH and the volume that a 0.2389M NaOH solution would require to neutralize it.

<em>Moles H₂SO₄ (Molar mass: 98.08g/mol):</em>

0.9368g * 39.04% = 0.3657g H₂SO₄ * (1mol / 98.08g) =

3.7289x10⁻³moles H₂SO₄

And moles of NaOH that you require to neutralize the acid are:

3.7289x10⁻³moles H₂SO₄ * (2 moles NaOH / 1 mole H₂SO₄) =

7.4578x10⁻³ moles NaOH

Using a 0.2389M NaOH solution:

7.4578x10⁻³ moles NaOH * (1L / 0.2389mol) = 0.03122L = 31.22mL

Right answer is:

<h3>A) 31.22 </h3>

5 0
3 years ago
HELP PLS<br> kakwkwkwkkwkwkw
Vanyuwa [196]

Answer:

yo try and search it on Google

4 0
4 years ago
015
kozerog [31]

Answer:

Average of measurements = 20.97 cm

Explanation:

Given data:

Three measurements of pete's = 20.9 cm, 21.0 cm, 21.0 cm.

Average value of measurements = ?

Formula:

Average of measurements = sum of all measurements / Total number of measurements

Solution:

Average of measurements =  20.9 cm + 21.0 cm + 21.0 cm. / 3

Average of measurements = 62.9 cm / 3

Average of measurements = 20.97 cm

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3 years ago
AgNO2+Na3PO4<br><br> Solve and predict if its a precipitate
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To identify a precipitation reaction and predict solubilities. ... solution of potassium dichromate to give a reddish precipitate of ... When aqueous solutions of silver nitrate and potassium dichromate are ...
Missing: AgNO2+
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3 years ago
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