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
polet [3.4K]
4 years ago
6

Calcule el porcentaje de soluto (%vv) en una disolución preparada con 45,2 mL de ácido nítrico en 205 mL de agua.

Chemistry
1 answer:
ryzh [129]4 years ago
5 0

Answer:

18.1% V/V

Explanation:

El porcentaje volumen/volumen (%v/v) es una unidad de concentración en química definida como la relación entre volumen de soluto y volumen total de la solución (En las mismas unidades ambos volúmenes) por cien. La fórmula es:

% V/V = Volumen soluto / Volumen solución × 100

Analizando el problema, el soluto es ácido nítrico (Menor cantidad) y el solvente es el agua.

Recordando, el volumen de la solución es igual al volumen del soluto + el volumen del solvente. Así:

% V/V = 45.2mL soluto / (45.2mL + 205mL) × 100 =

<em>18.1% V/V</em> es la concentración de la solución.

You might be interested in
When a 120g sample of aluminum absorbs 9612 J of energy its temperature increases from 298K to 388K. Find the specific heat of t
Iteru [2.4K]

Specific heat of Aluminium is 0.89 g/J

Explanation:

Step  1 :

Specific heat of a substance is the energy absorbed by a substance of unit mass when its temperature increases by one degree.

Energy Absorbed = Specific Heat * Mass of the substance * Temperature Difference

Step  2 :

It is given that 120 g sample absorbs 9612 J energy when the temperature increases from 298K to 388K.

Temperature Difference = 388 K - 298 K = 90 K

Step  3:

Specific Heat = (Energy Absorbed) ÷ (Mass of the substance * Temperature Difference)

Specific Heat = 9612 ÷  (120 * 90) = 0.89 grams / Joule

Step  4:

Answer:

Specific heat of Aluminium is 0.89 g/J

6 0
4 years ago
List two products derived from ethylene
laiz [17]
Ethylene is the starting material for the preparation of a number of two-carbon compounds including ethanol (industrial alcohol), ethylene oxide (converted to ethylene glycol for antifreeze and polyester fibres and films), acetaldehyde (converted to acetic acid), and vinyl chloride (converted to polyvinyl chloride).
8 0
2 years ago
What are the resonance structures of the<br>carbonate (CO32-) ion?​
postnew [5]

Answer:

go search google so dum

Explanation:

4 0
3 years ago
A dog whistle has a high frequency. What can you infer about the dog whistle?
zloy xaker [14]

Answer: It would have a high pitch.

Explanation: since the whistle has a high frequency, I can infer that it will have a high pitch.

8 0
3 years ago
Read 2 more answers
Liquid n-pentane and liquid n-octane are mixed to form a stream flowing at a rate of 1,496.5 lbm/hr. An in-line density measurem
Ivenika [448]

Answer:

202.20 cm^3/s

Explanation:

Hello,

I'm sending a photo showing the solution for this exercise.

The solution of the 2x2 system could be achieved by using a calculator or any  available algebraic method.

Best regards.

4 0
3 years ago
Other questions:
  • How many protons are in an ion with 54 electron and -1 charge?
    9·2 answers
  • A 35.6 g sample of ethanol (C2H5OH) is burned in a bomb calorimeter, according to the following reaction. If the temperature ros
    9·1 answer
  • An alcohol consists of an "R" group combined with the:
    6·2 answers
  • The table below shows four samples of carbon dioxide and the temperature of the water that they were dissolved in.
    10·2 answers
  • Which two elements only need two valence electrons to be happy
    5·1 answer
  • 3. Two people are playing tug of war. One person pulls to the right with 32 N of force. The other person pulls to the left with
    9·1 answer
  • What is the mass of 2.2 moles of magnesium chloride? With work shown
    14·2 answers
  • How to get metal from ore containing KI (potassium iodide)? suggest a way and make an equation
    12·1 answer
  • ANSWER CORRECTLY FOR BRAINLEIST! :)
    15·2 answers
  • student conducted a simple experiment to explore heat transfer they constructed the closed system you see here a metal soda can
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!