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Lemur [1.5K]
4 years ago
7

What is the density of a 6cm3 cork that has a mass of 3g?

Chemistry
1 answer:
Andreyy894 years ago
5 0

Answer:

The density is 0,5 g/cm3

Explanation:

The density (δ) is the ratio between the mass and the volume of a compound:

δ=m/v= 3 g/6 cm3= <em>0,5 g/cm3</em>

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Choose the aqueous solution that has the highest boiling point. These are all solutions of nonvolatile solutes and you should as
FrozenT [24]

Answer:

0.100 M AlCl₃

Explanation:

The variation of boiling point by the addition of a nonvolatile solute is called ebullioscopy, and the temperature variation is calculated by:

ΔT = W.i

Where W = nsolute/msolvent, and i is the Van't Hoff factor. Because all the substances have the same molarity, n is equal for all of them.

i = final particles/initial particles

C₆H₁₂O₆ don't dissociate, so final particles = initial particles => i = 1;

AlCl₃ dissociates at Al⁺³ and 3Cl⁻, so has 4 final particles and 1 initial particle, i = 4/1 = 4;

NaCl dissociates at Na⁺ and Cl⁻ so has 2 final particles and 1 initial particle, i = 2/1 = 2;

MgCl₂ dissociates at Mg⁺² and 2Cl⁻, so has 3 final particles and 1 initial particle, i = 3/1 = 3.

So, the solution with AlCl₃ will have the highest ΔT, and because of that the highest boiling point.

8 0
3 years ago
What can you say about an atom with a -2 ion of oxygen-17? WILL GIVE BRAINLIEST
olga nikolaevna [1]

Answer:

The mass number of an isotope is indicated in the name of the isotope by writing the name of the element followed by a hyphen and the mass number.

Explanation:

Examples include carbon-14, uranium-235, and oxygen-17.

3 0
3 years ago
¿POR QUÉ SE LE LLAMA INDICADOR UNIVERSAL AL PAPEL p H?
maksim [4K]

Answer:

ª

Explanation:

⠄⠄⠄⠄⠄⠄⢴⡶⣶⣶⣶⡒⣶⣶⣖⠢⡄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⢠⣿⣋⣿⣿⣉⣿⣿⣯⣧⡰⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⣿⣿⣹⣿⣿⣏⣿⣿⡗⣿⣿⠁⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠟⡛⣉⣭⣭⣭⠌⠛⡻⢿⣿⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⠄⣤⡌⣿⣷⣯⣭⣿⡆⣈⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⢻⣿⣿⣿⣿⣿⣿⣿⣷⢛⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⠄⢻⣷⣽⣿⣿⣿⢿⠃⣼⣧⣀⠄⠄⠄⠄⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⠄⠄⠄⣛⣻⣿⠟⣀⡜⣻⢿⣿⣿⣶⣤⡀⠄⠄⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⠄⢠⣤⣀⣨⣥⣾⢟⣧⣿⠸⣿⣿⣿⣿⣿⣤⡀⠄⠄⠄

⠄⠄⠄⠄⠄⠄⠄⠄⢟⣫⣯⡻⣋⣵⣟⡼⣛⠴⣫⣭⣽⣿⣷⣭⡻⣦⡀⠄

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⠄⠄⠄⠄⠄⠄⠄⣿⣿⣿⢸⣿⣿⣿⠸⣿⡇⣿⣿⡆⣼⣿⣿⣿⡇⣿⣿⡇

⠇⢀⠄⠄⠄⠄⠄⠘⣿⣿⡘⣿⣿⣷⢀⣿⣷⣿⣿⡿⠿⢿⣿⣿⡇⣩⣿⡇

⣿⣿⠃⠄⠄⠄⠄⠄⠄⢻⣷⠙⠛⠋⣿⣿⣿⣿⣿⣷⣶⣿⣿⣿⡇⣿⣿⡇

3 0
3 years ago
What is the molarity of an HCl solution if 37.0 mL is completely titrated by 56.0 mL of an NaOH solution whose concentration is
Nata [24]

Answer:

Option A. 0.378M

Explanation:

Data obtained from the question include:

Molarity of acid (Ma) =..?

Volume of acid (Va) = 37.0 mL

Volume of base (Vb) = 56.0 mL

Molarity of base (Mb) = 0.250 M

Next, we shall write the balanced equation for the reaction. This is given below:

HCl + NaOH —> NaCl + H2O

From the balanced equation above,

The mole ratio of the acid (nA) = 1

The mole ratio of the base (nB) = 1

Finally, we can determine the molarity of the acid as shown below :

MaVa/MbVb = nA/nB

Ma x 37 / 0.25 x 56 = 1

Cross multiply

Ma x 37 = 0.25 x 56

Divide both side by 37

Ma = 0.25 x 56 /37

Ma = 0.378M

Therefore, the molarity of the acid, HCl is 0.378M

5 0
4 years ago
Read 2 more answers
Question 1 (2 points)
natulia [17]

Temperature is the average kinetic energy of gas molecules.

<h3>What is absolute zero?</h3>

The term absolute zero refers to the hypothetical point where the energy of molecules is zero. It is the point where all of their motion stops completely.

In a liquid, the movement of the molecules is more significant than in a solid. If you keep increasing the temperature of a liquid, it will boil and become a gas.

Matter contains energy which depends on the temperature of matter. To remove the energy of matter, you have to lowering its temperature.

The addition of energy to matter occurs when matter is heated. Hence, you add energy to matter by heating it.

The molecules at warm temperatures differ from the molecules at cool temperatures because the molecules at warmer temperatures move around more.

The air on a hot day compares to the air on a cool day in the sense that on a hot day, air molecules have more energy.

Temperature is depends on the kinetic energy of molecules. Hence, the best description of temperature is motion of molecules.

The temperature of a body is the average kinetic energy of its molecules.  When two things that are not touching have the same temperature their molecules move at the same average speed.

Since a liquid receives energy when it is heated, when the liquid is boiled beyond its boiling point, It will become a gas.

The difference between heat and temperature is that temperature measures the motion of molecules, and heat is the energy of that motion.

Learn more about temperature: brainly.com/question/15267055

3 0
3 years ago
Read 2 more answers
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