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
Dahasolnce [82]
3 years ago
13

Una solución de 0.204 M de NaOH seutiliza para neutralizar 50 mL de una solución de H3PO4. Si se necesitaron 16.4 mL de la soluc

ión de NaOH para la neutralización completa, cual es laMolaridad de la solución de H3PO4.
Pliiiis ayudaaaa!!!
Biology
1 answer:
vfiekz [6]3 years ago
7 0

Answer: 0.05 M

Explanation:

Para responder esta pregunta, hay que tener en cuenta la Ley de Conservación de la Masa. <u>La misma indica que en una reacción química en un sistema cerrado, la masa total de las moléculas que participan permanece constante.</u> Esto significa que la masa utilizada en los reactivos es la misma que la masa de los productos generados.

En este problema, se cuenta con una solución de NaOH (hidróxido de sodio) tiene una molaridad de 0.204 (siendo la molaridad el número de moles por litro de solución) y se utilizan 16.4 mL de dicha solución para agregarla a 50 mL de una solución de H3PO4 (ácido fosfórico).

Entonces, ya que la masa de ambas soluciones no se pierde, podemos utilizar la ecuación de la Ley de Conservación de la Masa:

Concentración inicial x Volumen inicial = Concentración final x Volumen final.

Concentración inicial: 0.204 M

Volumen inicial: 16.4 mL

Concentración final: ?

Volumen final: 50 mL + 16.4 mL = 66.4 mL

Reemplazamos los valores en la ecuación:

0.204 M x 16.4 mL = Concentración final x 66.4 mL

La molaridad de la solución de H3PO4 es de 0.05 M.

You might be interested in
What led to scientists accepting Mendel's ideas?
Eduardwww [97]

Answer:

A. Scientists discovered chromosomes and DNA.

Explanation:

Mendel's ideas were based on patterns of inheritance in plants. Although he identified these patterns, at the time, we did not know what the hereditary material was. This means Mendel couldn't uncover the mechanism of why he was seeing the patterns he was.

When scientists discovered chromosomes and DNA, they were able to see how Mendel's observations made sense in the context of DNA and chromosomes.

8 0
3 years ago
Read 2 more answers
As the population of wolves increases, their prey decrease. This is most directly followed by which of the following? a sustaine
nlexa [21]
The answer, I believe, would be C) A decrease in the wolf population - because the prey decreases, fewer wolves will be able to find food, which will lead to a decrease in their population. 
8 0
4 years ago
Read 2 more answers
E. coli is a species of bacteria. What advantage does E. coli have over sexually reproducing organisms?
statuscvo [17]
<h3><u>Answer;</u></h3>

The bacteria require less energy to make offspring,

They do not need a partner

Also the reproduction is faster and rapid compared to sexual reproduction.

<h3><u>Explanation</u>;</h3>
  • Asexual reproduction is a type of reproduction that involves one parent and produces offspring that are genetically identical to each other and to the parent.
  • In sexual reproduction, on the other hand, two parents are involved, who produce reproductive cells called gametes that unite to form an offspring.
  • <em><u>E. coli is a bacteria that reproduces asexually. An asexual reproducing organism can produce many offspring in a short period of time without utilizing energy to find a mate</u></em><u>. </u>
5 0
3 years ago
Read 2 more answers
Growth Mindsets Assessment
gulaghasi [49]

Answer:

a. This quote means, if you believe that something you excel, or your ability to do something, in is ingrained in your mind you will eventually get to a point where you won't know what to do or your won't be good at it anymore and you will break, and not know what to do because you think your skill was ingrained into your mind. If you believe you can learn something to become better at it then you will be able to get past that point because you will know you just have to learn more about it.

Explanation:

Sorry if this isn't a very good answer I'm not in college!

4 0
3 years ago
Organisms made up of one or more cells with complex internal structure are called
olga55 [171]
The answer can be either multicellular organisms or the scientific word of Eukaryotes.
7 0
3 years ago
Other questions:
  • The presence of a y chromosome determines gender <br> True or False?
    8·2 answers
  • P53 is a protein that blocks the cell cycle if DNA is damaged. It binds to cyclin and cdk, blocking entry into S phase. If the d
    11·2 answers
  • Which is the SI base unit of mass?<br><br> Liter<br> Kilogram <br> Meter<br> Pound
    15·2 answers
  • What should you do when someone takes things and hoards them?
    13·1 answer
  • Condensation reactions are also referred to as dehydration synthesis explain how the name dehydration synthesis is descriptive o
    11·1 answer
  • Physical removal of an invasive species is an example of _______.
    15·2 answers
  • The distribution of the height of humans is a normal distribution. There are some very y'all people, and some very short people,
    9·1 answer
  • The word root infect means which of the following?
    6·1 answer
  • The five or six types of crops is called​
    11·1 answer
  • Water molecules are _____ due to _____ bonding
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!