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
Sindrei [870]
3 years ago
5

Un profesor desea preparar una disolución de agua oxigenada al 20%v/v y dispone solamente de 50 cm3 h2o2 ¿qué volumen d disoluci

ón deberá preparar? Con procedimiento
Chemistry
1 answer:
Sergeeva-Olga [200]3 years ago
5 0

Answer:

250cm³ de disolución se deben preparar

Explanation:

El porcentaje volumen volumen (%v/v) se define como el volumen de soluto -En este caso, H2O2- en 100cm³ de disolución.

Se desea preparar una solución que contenga 20cm³ de H2O2 por cada 100cm³

Como solamente se cuenta con 50cm³ de H2O2, el volumen que se debe preparar es:

50cm³ H2O2 * (100cm³ Disolución / 20cm³ H2O2) =

<h3>250cm³ de disolución se deben preparar</h3>

You might be interested in
Identifique a equação que forma uma base:
Rasek [7]
C. H20 + CaO = Ca(OH)2
4 0
3 years ago
Your aunt is sipping on iced tea and fanning herself during a hot South Carolina summer day. You tell her that there is enough e
tiny-mole [99]

Answer:

This is like having enough energy to supply the world for centuries with just 1% of the sea's force? The amount of energy in it can supply energy therefore the one drop of tea is able to run her air conditioning for the rest of her life.

Explanation:

3 0
3 years ago
A runner wants to run 10.4 km k m . She knows that her running pace is 8.0 mi/h m i / h .
mars1129 [50]

Answer:

Approximately 49 minutes.

Explanation:

1 mile = 1.6 km

So 8.0 x 1.6 km

Minutes required: \frac{10.4 times 60 }{8.0 times 1.6}= 48.75 minutes

I hope this helped :)

4 0
3 years ago
The process of recovering a salt from a solution by evaporating the solvent is known as
NeX [460]
Crystallization is the correct answer for recovering salt from a solution by evaporating the solvent
8 0
3 years ago
Read 2 more answers
What is the mass of 1.9 moles of beryllium bromide (BeBr_)
Korvikt [17]

Answer:168.820182 gram using the molecular weight calculator and the molar mass of BeBr2.

Explanation:

6 0
3 years ago
Other questions:
  • Compare the three atom diagrams. which one shows the electron with the highest potential energy
    8·1 answer
  • Tools that make human work easier?
    15·1 answer
  • Never have what near a heating device ?
    12·1 answer
  • What does an acid produce when it is placed in water?
    12·1 answer
  • Give 3 safety measures in handling acids or basic
    10·1 answer
  • A magnet was placed near a pile that contained both iron and sulfur. The magnet was moved gradually closer to the pile. As it ne
    9·2 answers
  • A 1.59 mol sample of Kr has a volume of 641 mL. How many moles of Kr are in a 4.41 L sample at the same temperature and pressure
    15·1 answer
  • When a material gains thermal energy and melts, it is undergoing a physical change.
    8·1 answer
  • What are some examples of fusion
    5·1 answer
  • Which of the following are classified as an electron group? A.Charged atoms. B.Lone pairs of electrons. C.Ions. D.Bonded pairs o
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!