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
Ne4ueva [31]
3 years ago
9

What are the standard ways to make a solution of known concentration? (select all that apply.)?

Chemistry
1 answer:
MatroZZZ [7]3 years ago
8 0

1- Molar solutions: based on number of moles of chemical in 1 litre of solution

2- Weight % solution:  the weight of chemical divided by the total weight of the solution (chemical + water) and multiplied by 100.

You might be interested in
What volume will 25.0g ammonia occupy at stp
Slav-nsk [51]

Answer:

The volume of 25 g O2 at STP is ~18 L.

Explanation:

can you mark me brainliest pls :)

3 0
3 years ago
Which combination can be used to make a buffer with a pH of 4.2? The Ka of benzoic acid, C6H5COOH, is 6.5×10^–5 and the Ka of hy
ankoles [38]

50.0 mL of 0.500 M HCN and 25.0 mL of 0.500 M sodium hydroxide combination can be used to make a buffer with a pH of 4.2. The KK

an of benzoic acid, C6H5COOH, is 6.5×10-5 and the an of hydrocyanic acid, HCN, is 4.9×10-10.

Benzoic acid

A white (or colourless) solid with the chemical formula C6H5CO2H, benzoic acid is pronounced: "bnzo.k." The simplest aromatic carboxylic acid is this one. The term comes from gum benzoin, which was the substance's exclusive source for a very long period. Many plants naturally contain benzoic acid, which is used as an intermediary in the formation of numerous secondary metabolites[9]. Benzoic acid salts are employed as food preservatives. An essential starting point for the industrial synthesis of many other chemical compounds is benzoic acid. The term "benzoates" refers to the salts and esters of benzoic acid.

To learn more about benzoic acid refer here:

brainly.com/question/24052816

#SPJ 4

8 0
1 year ago
1. How many atoms in all are in a molecule of serotonin?*<br> 20 points<br> оооо
ipn [44]

Serotonin is a molecule composed of 10 carbon atoms (black), 12 hydrogen atoms (white), 2 nitrogen atoms (blue), and 1 oxygen atom (red).

6 0
4 years ago
Which compound is classified as a hydrocarbon?
Andrej [43]
<span>(2) butynu........................</span>
5 0
4 years ago
Read 2 more answers
Please compare between physical and chemical properties of matter<br>​
stealth61 [152]

Answer:

A physical property is a characteristic of a substance that can be observed or measured without changing the identity of the substance. Physical properties include color, density, hardness, and melting and boiling points. A chemical property describes the ability of a substance to undergo a specific chemical change

Explanation:

I got this from chem.libretexts.org in case you wanted to know

5 0
3 years ago
Other questions:
  • If 25.0 ml of seawater has a mass of 25.895 g and contains 1.295 g of solute, what is the mass/mass percent concentration of sol
    12·1 answer
  • 6. Potassium hydrogen phthalate (KHP, KHC8H4O4) is also a good primary standard. 20 mL of NaOH was titrated with 0.600 M KHC8H4O
    9·1 answer
  • Write the balanced molecular and net ionic equations for the reaction between aluminum metal and silver nitrate. identify the ox
    8·2 answers
  • The distance between two bonded atoms (the bond length), is usually in units of picometers, where 1.00 m = 1.00 x 1012 pm (or 1.
    6·1 answer
  • Convert 48900 kilometers to<br> centimeters
    15·2 answers
  • What happens to the electron configuration when you move down a family?
    9·1 answer
  • One theory that has been proposed about the information of the universe.
    15·2 answers
  • Which word equation represents a neutralization reaction? *
    7·2 answers
  • What happens to<br> temperature in your<br> layer as you go higher<br> in altitude.
    5·1 answer
  • Which statement describes a process or step in the rock cycle?
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!