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
seropon [69]
1 year ago
6

2.4 g of a solid is added to 91 g of water. What is the mass % concentration of the solution?

Chemistry
1 answer:
vladimir2022 [97]1 year ago
8 0

Answer:

2.64%

Explanation:

mass percent = (grams of solute / grams of solution) x 100

mass percent = (2.4 / 91) × 100

mass percent = 2.64% to 3sf

You might be interested in
Why does it take so much heat and pressure to create helium and other elements?
ehidna [41]

Answer:

To break down the nucleus of an atom

Explanation:

Remember to change from one element to another, is necessary to add protons, neutrons and electrons,in most of the cases.

The take an electron from an atom you need certain energy, but they are in the outside part of the atom so is not as much energy as the one is necessary to take one neutron or proton from the inside part of an atom.

In this way, is a must to have a combination of pressure and heat to destabilize an atom and take some of this subatomic particles.

4 0
3 years ago
M
vlada-n [284]

Answer:

El cocodrilo se arrastró durante 20.833 segundos.

Explanation:

El enunciado presenta omisiones y errores conceptuales. La forma correcta es la siguiente: <em>"Un cocodrilo se arrastró 25 metros hacia la derecha con una  rapidez promedio de 1.2 metros por segundo. ¿Cuántos segundos se arrastró el cocodrilo?"</em>

Consideremos que el cocodrilo tiene un movimiento rectilíneo uniforme, el tiempo requerido para el recorrido se calcula con la siguiente ecuación cinemática:

t = \frac{x}{v} (1)

Donde:

x - Distancia recorrida, en metros.

v - Rapidez del cocodrilo, en metros por segundo.

t - Tiempo, en segundos.

Si x = 25\,m y v = 1.2\,\frac{m}{s}, entonces el tiempo empleado por el cocodrilo es:

t = \frac{25\,m}{1.2\,\frac{m}{s} }

t = 20.833\,s

El cocodrilo se arrastró durante 20.833 segundos.

<em />

8 0
3 years ago
Vamos para playa oh te rajas lol
Anuta_ua [19.1K]

Answer:

let's go to the beach or u will relax lol

6 0
2 years ago
Mrs. Dodge's class is studying minerals. Mrs. Dodge wants her class to complete a test to find out the color of minerals found i
hram777 [196]

Answer:

C) Streak Test

Explanation:

7 0
3 years ago
Show the relationship of number of moles and volume in Avogadro's law using data. Write your calculations and answer on a separa
leonid [27]

Answer:

See below ~

Explanation:

The calculated values of V/n :

⇒ 1.5/0.3 = 5

⇒ 3/0.6 = 5

⇒ 4.5/0.9 = 5

⇒ 6/1.2 = 5

⇒ 7.5/1.5 = 5

1. From this we understand that the calculated values of V/n remain constant, equal to <u>5</u> in this case.

2. The volume-mole graph will be a straight line passing through the origin. (Attached below)

7 0
2 years ago
Other questions:
  • Who is credited with creating the first accurate model of DNA
    15·2 answers
  • All of the chromosomes line up along the middle of the cell during
    15·2 answers
  • The efficiency of a machine can be increased by decreasing distance. decreasing force. reducing friction. reducing work.
    9·2 answers
  • How many square centimeters are in an area of 8.10inch2 ?
    10·1 answer
  • Discuss the relationship between amount of energy and the color of light produced by excited electrons
    10·1 answer
  • How are meiosis related to sexual reproduction
    5·2 answers
  • ANSWER THESE 5 MULTPLE CHOICE QUESTIONS!!!<br> I'LL GIVE 30 POINTS AND A BRAINIEST:)
    14·2 answers
  • 1. When a mechanical wave, such as sound, reflects off a surface, what can the
    7·1 answer
  • 10
    14·2 answers
  • How to write the ionic formula for the K1+, MnO41- pair of ions
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!