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
laila [671]
3 years ago
10

Density is the ratio of a sample's mass to its volume. A bar of lead has a mass of 115.2 g. When it is submerged in 25.0 mL of w

ater in a graduated cylinder, the water level rises to 35.5 mL. What is the density of the lead
Chemistry
1 answer:
Margarita [4]3 years ago
3 0

Answer:

$10.97 \ g/cm^3$

Explanation:

Given :

Mass of a bar of lead = 115.2 g

Initial water level $\text{in the graduated cylinder}$ = 25 mL

Final water level $\text{in the graduated cylinder}$ = 35.5 mL

Difference in the water level = 35.5 - 25

                                               = 10.5 mL

                                               = 10.5 \ cm^3

We know that when a body is submerged in water, it displaces its own volume of water.

Therefore, the volume of the lead bar = volume of the water displaced = 10.5 mL  = 10.5 \ cm^3

We know that mathematically, density is the ratio of mass of body to its volume.

Density of the lead bar is given by :

$\rho =\frac{\text{mass}}{\text{volume}}$

$\rho =\frac{\text{115.2 g}}{\text{10.5 cm}^3}$

  = $10.97 \ g/cm^3$

You might be interested in
During a new moon, the moon is
IgorLugansk [536]
It is A. This is because, according to your diagram, the sunlight hits the moon, and it is blocking some of the sunlight to reach the Earth. This means that it is in between both of them.
4 0
3 years ago
Burning fossil fuels creates the ___________ gas carbon dioxide which increases global temperatures.
Flauer [41]
Greenhouse gas is your answer it is causing the greenhouse effect of trapping heat in the earth
3 0
3 years ago
Read 2 more answers
3 natural chemicals a part of our life
Mademuasel [1]
Sodium chloride, methane gas and water
4 0
3 years ago
Read 2 more answers
If you have an aqueous solution that contains 1.5 moles of hcl, how many moles of ions are in the solution? (a) 1.0, (b) 1.5, (c
Darya [45]

If you have an aqueous solution that contains 1.5 moles of HCl, the number of moles of ions in the solution is 3.0 moles.

<h2>Further Explanation </h2><h3>Strong acids  </h3>
  • Strong acids are types of acids that undergo complete dissociation to form ions when dissolved in water.
  • Examples of such acids are, HCl, H2SO4 and HNO3
  • Dissociation of HCl

HCl + H₂O ⇔ H₃O⁺ + OH⁻

<h3>Weak acids  </h3>
  • Weak acids are types of acids that undergo incomplete dissociation to form ions when dissolved in water.
  • Examples of such acids are acetic acids and formic acids.
  • Dissociation of  acetic acid

H₃COOH ⇔ CH₃COO⁻ + H⁺; CH₃COO⁻ is a conjugate base of acetic acid.

<h3>In this case;</h3>
  • HCl which is a strong acid that ionizes completely according to the equation;

HCl + H₂O ⇔ H₃O⁺ + OH⁻

  • From the equation, 1 mole of HCl produces 1 mole of H₃O⁺ ions and 1 mole of OH⁻ ions.

Therefore;

1.5 moles of HCl will produce;

= 1.5 moles of H₃O⁺ ions and 1.5 moles of OH⁻ ions.

This gives a total number ions of;

= 1.5 + 1.5

= 3 moles of ions

Keywords:  Strong acid, weak acid, ions, ionization

<h3>Learn more about: </h3>
  • Strong acid: brainly.com/question/3239966
  • Weak acid; brainly.com/question/3239966
  • Ionization of acids and bases: brainly.com/question/11844503

Level: High school

Subject: Chemistry

Topic: Salts, Acids and Bases

6 0
3 years ago
Read 2 more answers
The substance oxidized causes the other substance to be reduced and is called the:.
blsea [12.9K]

Answer:hydrogen Peroxide

Explanation:

4 0
3 years ago
Read 2 more answers
Other questions:
  • 36.665m=____________cm
    11·1 answer
  • Which symbol represents an atom in the ground state with the most stable valence electron figuration
    10·1 answer
  • A student using this technique finds that when putting a hot piece of metal into a calorimeter which contains 35.070g of water,
    7·1 answer
  • Which part of the water cycle would follow step C in the diagram shown?
    14·1 answer
  • In which cases do you expect deviations from the idealized bond angle?
    7·1 answer
  • Reasons why convection is responsible for the uneven heating of the air in the atmosphere
    6·1 answer
  • Which part anchors plants in the ground?
    15·1 answer
  • What changes a liquid to a gas?
    5·2 answers
  • As the temperature increases, the molecular motion of the molecules decreases and it
    11·2 answers
  • Evidence of chemical reactions include changes in
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!