1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
S_A_V [24]
3 years ago
5

The forensic technician at a crime scene has just prepared a luminol stock solution by adding 10.0 g of luminol into a total vol

ume of 75.0 mL of H2O . What is the molarity of the stock solution of luminol
Chemistry
1 answer:
Murrr4er [49]3 years ago
8 0

Answer:

0.753M

Explanation:

Molecular formula of luminol is as follows: C8H7N3O2

Molecular formula of the luminol (C8H7N3O2) = 12(8) + 1(7) + 14(3) + 16(2)

= 96 + 7 + 42 + 32

= 177g/mol

mole of luminol = mass/molar mass

mole = 10 ÷ 177

mole = 0.0565 mol

Molarity can be calculated using the formula: Molarity = mol/volume (L)

Volume of water = 75.0 mL = 75/1000

= 0.075L

Molarity (M) = 0.0565 ÷ 0.075

The molarity of the stock solution = 0.753M

You might be interested in
A(n) ____________________ is a compound that turns litmus blue and is often found in soaps and detergents.
ehidna [41]
B. base
_______________________________________________________________
8 0
3 years ago
Bruh i need help and someone just used the last one for points plz help​
ankoles [38]

Answer: 5000

Explanation:

6 0
2 years ago
If a substance has a ph of 3 what is the pig
aniked [119]

Answer:

Explanation:

PLEASE MAKE YOUR QUESTION CLEAR

6 0
3 years ago
Does the pH increase or decrease, and does it do so to a large or small extent, with each of the following additions?(c) 5 drops
Umnica [9.8K]

The pH decreases to a large or small extent with each of the given additions.

<h3>What is common name of NaOH?</h3>

The common name of NaOH is sodium hydroxide. Lye and caustic soda are other names for sodium hydroxide, an inorganic substance having the formula NaOH. It is a white, solid ionic substance made up of the cations sodium (Na+) and the anions hydroxide (OH). Sodium hydroxide is a chemical that manufacturers utilize to make things like soap, rayon, paper, explosives, colors, and petroleum products. Processing cotton fabrics, metal cleaning and processing, oxide coating, electroplating, and electrolytic extraction are further uses for sodium hydroxide. A caustic metallic base is sodium hydroxide (NaOH), sometimes referred to as lye or caustic soda. Caustic soda, an alkali, is commonly employed in a variety of sectors, primarily as a potent chemical base in the production of pulp and paper, textiles, drinking water, and detergents.

To learn more about sodium hydroxide, visit:

brainly.com/question/24010534

#SPJ4

6 0
1 year ago
All substances taking part in a certain interaction are shown below: Butane is written followed by an addition sign followed by
OverLord2011 [107]
<span>The Law of Conservation of Mass simply states that the total amount of mass should not change in a chemical reaction that is isolated (no other objects can enter the reaction). The total mass of the reactants must be equal to the total mass of the products. Thus, t</span>he correct estimate of the amount of oxygen used in the interaction is the difference between 133 g and 29 g.
3 0
3 years ago
Read 2 more answers
Other questions:
  • Chloe wants to lighten the color of her dark hair, which will require the use of both haircolor and hydrogen peroxide. hydrogen
    15·1 answer
  • George is writing an essay about the role of observation and inference in the development of the atomic theory. He wants to expl
    8·1 answer
  • Technology can be best defined as?
    8·2 answers
  • he equilibrium constant, Kc , for the following reaction is 7.00×10-5 at 673 K.NH4I(s) NH3(g) + HI(g)If an equilibrium mixture o
    11·1 answer
  • What do all properties of matter have in common
    15·2 answers
  • Organic acids are weaker than inorganic once it is true or false​
    7·2 answers
  • Facts about :<br> Melting Point
    7·1 answer
  • It is possible for an object’s weight to change while it’s mass remains constant?Explain.
    10·1 answer
  • Which type of reaction is <br> NaOH + KNO3 NaNO3 + KOH<br> --&gt;&gt;
    9·1 answer
  • What are some characteristic properties of elements to the left of the elements along the ""staircase""? To the right?
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!