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Maslowich
3 years ago
12

CAN SOMEBODY PLEASE HELP ME?

Chemistry
1 answer:
Ierofanga [76]3 years ago
6 0


Give any experiment you've learned so that I can explain thx.
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How do I find the answer for question 3 and 4?
r-ruslan [8.4K]

Q3) 1.5 mL from the 1.00 M HCl stock solution

Q4) 0.15 mL from the 1.00 × 10⁻¹ M NaOH stock solution

Explanation:

Q3) Determine the amount of 1.00 M HCl stock solution needed to form 100 mL of 1.50 × 10⁻² M HCl solution.

Q4)  Determine the amount of 1.00 × 10⁻¹ M stock NaOH solution needed to form 100 mL of 1.50 × 10⁻² M NaOH solution.

To solve both of the questions we use the following formula:

initial concentration × initial volume =  final concentration × final volume

For Q3 we have:

initial concentration = 1.00 M HCl

initial volume = ?

final concentration =  1.50 × 10⁻² M HCl

final volume = 100 mL

1.00 × initial volume = 1.50 × 10⁻² × 100

initial volume = ( 1.50 × 10⁻² × 100) / 1.00

initial volume = 1.5 mL from the 1.00 M HCl stock solution

For Q4 we have:

initial concentration = 1.00 × 10⁻¹ M NaOH

initial volume = ?

final concentration =  1.50 × 10⁻² M NaOH

final volume = 100 mL

1.00 × 10⁻¹ × initial volume = 1.50 × 10⁻² × 100

initial volume = ( 1.50 × 10⁻² × 100) / 1.00 × 10⁻¹

initial volume = 0.15 mL from the 1.00 × 10⁻¹ M NaOH stock solution

Learn more about:

determining molar concentrations

brainly.com/question/3998372

#learnwithBrainly

3 0
3 years ago
What is the purpose of a spectroscope?
bagirrra123 [75]

Answer:

spectroscope, optical device used in spectral analysis for producing and measuring their wavelengths and intensities (see spectrum). When a material is heated to fire, it emits light, typical of the atomic composition of the material.

Explanation:

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The bonding of two atoms will most likely occur if:
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The bonding of two atoms will most likely occur if A. a more stable state can result from the union.
Otherwise, there would be no point in making two atoms bond.
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They are about 4.5 billion years old. Hope this helps.
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Describe the two methods of active transport
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Endocytosis
Process by which the cell surrounds and takes particles into the cell

Exocytosis
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