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
horsena [70]
3 years ago
11

47 In a titration, 20.0 milliliters of a 0.150 M NaOH(aq) solution exactly neutralizes 24.0 milliliters of an HCl(aq) solution.

What is the concentration of the HCl(aq) solution?(1) 0.125 M (3) 0.250 M
(2) 0.180 M (4) 0.360 M
Chemistry
1 answer:
sasho [114]3 years ago
7 0
The answer is (1) 0.125 M. The reaction equation is NaOH + HCl = NaCl + H2O. So the mol number of NaOH and HCl is the same. So suppose the concentration of HCl is x, we can have equation: 20*1.15=24*x. So x= 0.125 M. (M means mol/L, but if we use the same unit at both side of the equation, it is ok.)
You might be interested in
1. How can systems with such different structures perform the same function?
nexus9112 [7]

Explanation: Specialized Structures. ... This is because different organisms have developed unique structures that perform these functions and that do so in ways that fit their specific environments. So in this case, the structures are specialized to perform a specific function but also to fit the needs of a specific organism.

3 0
2 years ago
Read 2 more answers
A solution is made using 148.5 g of dimethyl ether (MM = 46.07 g/mol) and 90.0 g of methanol (MM = 32.04 g/mol). What is the mol
Mariulka [41]

Answer:

0.534

Explanation:

Mole fraction can be calculated using the formula:

Mole fraction = number of moles of solute ÷ number of moles of solvent and solute (solution).

In this question, solute is dimethyl ether while the solvent is methanol.

Mole (n) = mass (M) ÷ molar mass (MM)

Mole of solute (dimethyl ether) = 148.5 ÷ 46.07

= 3.22moles.

Mole of solvent (methanol) = 90 ÷ 32.04

= 2.81moles.

Total moles of solute and solvent = 3.22 + 2.81 = 6.03moles.

Mole fraction of dimethyl ether = number of moles of dimethyl ether ÷ number of moles of solution (dimethyl ether + methanol)

Mole fraction = 3.22/6.03

= 0.534

6 0
3 years ago
Which of the following is not a physical property of a liquid?
Usimov [2.4K]
Gas is not a liquid, hope this helps, o and next time you might wanna put the answer choices thanks
7 0
3 years ago
An unknown substance is a yellow gas at room temperature. Is this substance ionic or covalent?
DIA [1.3K]
Covalent because it is yellow maybe
7 0
3 years ago
Read 2 more answers
As the toy car rolls away, it slows down. Why?
Morgarella [4.7K]
You need to show a picture or else we can’t help you
8 0
2 years ago
Read 2 more answers
Other questions:
  • Considering a mixture of soil and water and compare it to a colloid, such as milk. Which property best differentiates these two
    6·2 answers
  • Determine the number of protons, neutrons, and electrons in the following isotopes that are used in medical diagnoses: (a) atomi
    9·1 answer
  • What is the partial pressure of the third gas, helium?
    13·1 answer
  • How many moles are in 68.5 liters of oxygen gas at STP?
    10·2 answers
  • 2. Arnie is going to dissolve 2.65g of zinc using 6.0M hydrochloric acid. A) what volume of the acid will he need to dissolve al
    8·1 answer
  • Microwave ovens emit microwave energy with a wavelength of 12.7 cm. what is the energy of exactly one photon of this microwave r
    13·1 answer
  • Find the volume of 20g of H₂ at STP<br><br>​
    10·1 answer
  • Fish and reptiles share which of these traits?
    14·1 answer
  • Photosynthesis in a plant is an example of which characteristic of living things?
    7·1 answer
  • Why does an object with less mass move faster after a collision with an object with more mass?
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!