What is the density of an object with a mass, №18006636, 13.03.2021 20:24

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What is the density of an object with a mass of 1.2 grams and a volume of 1.1cm3?

Step-by-step answer

P Answered by Master

Given~Mass ( m ) = 1.2gVolume ( v ) = 1.1cm³

$\boxed{ \large \sf \green{ Density = } \color{green}{\frac{Mass}{Volume} }}$

$\sf = \frac{1.2}{1.1 }$ ${\sf \: = 1.09090....}$

$\large \boxed{ \sf \red {density = 1.09090g/ {cm}^{3} }}$

Hope It's Helps~

Mathematics

The density of an object is its mass per unit volume. an object has a mass of 4.2 grams and a volume of 2 cm3. what is the density of the object? a. 8.4 g/cm^3 b. 0.5 g/cm^3 c. 2.1 g/cm^3 d. 2.2 g/cm^3

Step-by-step answer

P Answered by PhD

4

C. 2.1 g/cm^3

Step-by-step explanation:

The density of an object is its mass per unit volume.

The formula for density is:

$D=\frac{M}{V}$

The object has a mass of 4.2 grams.

$\implies M=4.2g$

and a volume of 2 cubic centimeters

$\implies V=2cm^3$

We substitute the known values into the formula to get:

$D=\frac{4.2}{2}gcm^{-3}$

We simplify to obtain:

$D=2.1gcm^{-3}$

Mathematics

The density of an object is its mass per unit volume. an object has a mass of 4.2 grams and a volume of 2 cm3. what is the density of the object? a. 8.4 g/cm^3 b. 0.5 g/cm^3 c. 2.1 g/cm^3 d. 2.2 g/cm^3

Step-by-step answer

P Answered by PhD

4

C. 2.1 g/cm^3

Step-by-step explanation:

The density of an object is its mass per unit volume.

The formula for density is:

$D=\frac{M}{V}$

The object has a mass of 4.2 grams.

$\implies M=4.2g$

and a volume of 2 cubic centimeters

$\implies V=2cm^3$

We substitute the known values into the formula to get:

$D=\frac{4.2}{2}gcm^{-3}$

We simplify to obtain:

$D=2.1gcm^{-3}$

Chemistry

A small object has a mass of 82.2 grams. When completely immersed in a graduated cylinder with a water level of 25.0 mL, the object causes the water level to rise to 47.1 mL. What is the density of the object in g/mL? (Do not enter the units; only the numeric value.)

Step-by-step answer

P Answered by PhD

3.72

Explanation:

Given data:

Mass of object = 82.2 g

Volume of water = 25.0 mL

Volume of water + object = 47.1 mL

Density of object = ?

Solution:

Volume of object:

Volume of object = (Volume of water + object) - Volume of water

Volume of object = 47.1 mL - 25.0 mL

Volume of object = 22.1 mL

Density of object:

d = 82.2 g/ 22.1 mL

d = 3.72 g/mL

Chemistry

A small object has a mass of 82.2 grams. When completely immersed in a graduated cylinder with a water level of 25.0 mL, the object causes the water level to rise to 47.1 mL. What is the density of the object in g/mL? (Do not enter the units; only the numeric value.)

Step-by-step answer

P Answered by PhD

3.72

Explanation:

Given data:

Mass of object = 82.2 g

Volume of water = 25.0 mL

Volume of water + object = 47.1 mL

Density of object = ?

Solution:

Volume of object:

Volume of object = (Volume of water + object) - Volume of water

Volume of object = 47.1 mL - 25.0 mL

Volume of object = 22.1 mL

Density of object:

d = 82.2 g/ 22.1 mL

d = 3.72 g/mL

Physics

Can someone ? ! 5 ! if the weight of displaced water is greater than the weight of an object, then the object will: a. float b. sink c. sink, then float an object will float when: a. buoyant force is equal to the weight of the object b. buoyant force is less than the weight of the object c. density is equal to the weight of the object d. density is greater than the weight of the object what is the buoyancy force on a 15 g object which displaces 60 ml of water? (remember to change ml of water to grams and grams to kg) a. 900 n b. 25 n c. 0.59 n

Step-by-step answer

P Answered by PhD

15

1) A. float

There are two forces acting on an object in the water: the weight of the object (downward) and the buoyancy (upward), which is equal to the weight of displaced water. If the weight of displaced water is greater than the weight of the object, it means that there is a net force directed upward, so the object will float.

2) A. buoyant force is equal to the weight of the object

As stated in the previous question, there are only these two forces acting on an object in the water (buoyant force and weight of the object), so if the two forces are equal, then the object is in equilibrium, so it will float.

3) C. 0.59 N

The buoyancy force is given by:

$B=\rho_L V_d g$

where

$\rho_L = 1000 kg/m^3$ is the density of the liquid (water)

$V_d=60 mL=6 \cdot 10^{-2} L=6 \cdot 10^{-5} m^3$ is the volume of displaced water

g=9.8 m/s^2 is the acceleration of gravity

Substituting numbers into the formula, we find

$B=(1000 kg/m^3)(6 \cdot 10^{-5} m^3)(9.8 m/s^2)=0.59 N$

4) C. 100.0 g

The density of the object is 20 g/cm^3, which is greater than the density of the water (1 g/cm^3): this means that the object will sink, so its volume is equal to the volume of displaced water.

Therefore, we have:

- object's density: $\rho=20 g/cm^3$

- object's volume: V=5 mL=5 cm^3

so, the mass of the object is

m=dV=(20 g/cm^3)(5 cm^3)=100.0 g

5) A. 2.0 g

The specific gravity of an object is given by the ratio between its density ( $\rho$ ) and the density of a reference substance ( $\rho_W$ ), in this case water:

$SG=\frac{\rho}{\rho_W}$

whe can rewrite each density as the ratio between mass and volume:

$SG=\frac{m_o /V_o}{m_w/V_w}$

where the suffix o refers to the object, while the suffix w refers to the water. However, if we assume that the object is completely in the water, the two volumes are equal, so we can simplify the formula:

$SG=\frac{m_o}{m_w}=\frac{16.2 g}{8.1 g}=2.0$

Physics

Can someone ? ! 5 ! if the weight of displaced water is greater than the weight of an object, then the object will: a. float b. sink c. sink, then float an object will float when: a. buoyant force is equal to the weight of the object b. buoyant force is less than the weight of the object c. density is equal to the weight of the object d. density is greater than the weight of the object what is the buoyancy force on a 15 g object which displaces 60 ml of water? (remember to change ml of water to grams and grams to kg) a. 900 n b. 25 n c. 0.59 n

Step-by-step answer

P Answered by PhD

15

1) A. float

There are two forces acting on an object in the water: the weight of the object (downward) and the buoyancy (upward), which is equal to the weight of displaced water. If the weight of displaced water is greater than the weight of the object, it means that there is a net force directed upward, so the object will float.

2) A. buoyant force is equal to the weight of the object

As stated in the previous question, there are only these two forces acting on an object in the water (buoyant force and weight of the object), so if the two forces are equal, then the object is in equilibrium, so it will float.

3) C. 0.59 N

The buoyancy force is given by:

$B=\rho_L V_d g$

where

$\rho_L = 1000 kg/m^3$ is the density of the liquid (water)

$V_d=60 mL=6 \cdot 10^{-2} L=6 \cdot 10^{-5} m^3$ is the volume of displaced water

g=9.8 m/s^2 is the acceleration of gravity

Substituting numbers into the formula, we find

$B=(1000 kg/m^3)(6 \cdot 10^{-5} m^3)(9.8 m/s^2)=0.59 N$

4) C. 100.0 g

The density of the object is 20 g/cm^3, which is greater than the density of the water (1 g/cm^3): this means that the object will sink, so its volume is equal to the volume of displaced water.

Therefore, we have:

- object's density: $\rho=20 g/cm^3$

- object's volume: V=5 mL=5 cm^3

so, the mass of the object is

m=dV=(20 g/cm^3)(5 cm^3)=100.0 g

5) A. 2.0 g

The specific gravity of an object is given by the ratio between its density ( $\rho$ ) and the density of a reference substance ( $\rho_W$ ), in this case water:

$SG=\frac{\rho}{\rho_W}$

whe can rewrite each density as the ratio between mass and volume:

$SG=\frac{m_o /V_o}{m_w/V_w}$

where the suffix o refers to the object, while the suffix w refers to the water. However, if we assume that the object is completely in the water, the two volumes are equal, so we can simplify the formula:

$SG=\frac{m_o}{m_w}=\frac{16.2 g}{8.1 g}=2.0$

Chemistry

Need asap its due today these questions 1.what two sets of units can be used to describe density? why are they interchangeable? 2.a solid block with a length of 6.0 cm, a width of 3.0 cm, and a height of 3.0 cm has a mass of 146 g. what is the block’s density? show all work. 3.to determine the density of an irregularly shaped object, a student immersed the object in 21.2 ml of water in a graduated cylinder causing the level of the water to rise to 27.8 ml. if the object has a mass of 22.4 grams, what is the density of the object? show all work.

Step-by-step answer

P Answered by Specialist

24

1.

Density can be defined as the mass of the substance in unit volume.

Density = mass / volume

Hence, g/mL and kg/L can be used as the units of density.

Those units are interchangeable because when converting one unit into other one nothing will happen to the value.

That is because when converting the g into kg, you have to multiply the value by 1 x 10⁻³. When converting mL into L, you should again multiply the volume by 1 x 10⁻³. Then those 1 x 10⁻³ will cancel off and the original value will remain as same.

2.

Answer is 2.70 g/mL.

Explanation;

Mass of the block = 146 g

Volume of the block = length x width x height

= 6.0 cm x 3.0 cm x 3.0 cm

= 54 cm³ = 54 mL

Density = mass / volume

= 146 g / 54 mL

= 2.70 g/mL

3.

Answer is 3.39 g/mL.

Explanation;

When immersing an object in a solution, the increased volume indicates the volume of that object.

Hence,

Volume of the object = increased volume of water level

= final volume - initial volume

= 27.8 mL - 21.2 mL

= 6.6 mL

Mass of the object = 22.4 g

Density = Mass / Volume

= 22.4 g / 6.6 mL

= 3.39 g/mL

4.

Accepted value is the value that scientists and community accept as true. This is a theoretical value.

But the measured value is the value that you obtain from doing experiments. This is the actual value.

If your measured value is more close to the accepted value, then your measured value is more precise. But, if your measured value is far away from accepted value means that your value is not precise and there may have some errors.

5.

Answers : Percent error is 9.11 %

The element which has 7.13 g/cm³ as density is Zinc (Zn).

Explanation;

Percent error can be calculated by using following formula.

% error = ( (measured value - accepted value) / accepted value ) x 100%

= ( (7.78 g/cm³ - 7.13 g/cm³) / 7.13 g/cm³ ) x 100%

= 9.11 %

Chemistry

Need asap its due today these questions 1.what two sets of units can be used to describe density? why are they interchangeable? 2.a solid block with a length of 6.0 cm, a width of 3.0 cm, and a height of 3.0 cm has a mass of 146 g. what is the block’s density? show all work. 3.to determine the density of an irregularly shaped object, a student immersed the object in 21.2 ml of water in a graduated cylinder causing the level of the water to rise to 27.8 ml. if the object has a mass of 22.4 grams, what is the density of the object? show all work.

Step-by-step answer

P Answered by Specialist

24

1.

Density can be defined as the mass of the substance in unit volume.

Density = mass / volume

Hence, g/mL and kg/L can be used as the units of density.

Those units are interchangeable because when converting one unit into other one nothing will happen to the value.

That is because when converting the g into kg, you have to multiply the value by 1 x 10⁻³. When converting mL into L, you should again multiply the volume by 1 x 10⁻³. Then those 1 x 10⁻³ will cancel off and the original value will remain as same.

2.

Answer is 2.70 g/mL.

Explanation;

Mass of the block = 146 g

Volume of the block = length x width x height

= 6.0 cm x 3.0 cm x 3.0 cm

= 54 cm³ = 54 mL

Density = mass / volume

= 146 g / 54 mL

= 2.70 g/mL

3.

Answer is 3.39 g/mL.

Explanation;

When immersing an object in a solution, the increased volume indicates the volume of that object.

Hence,

Volume of the object = increased volume of water level

= final volume - initial volume

= 27.8 mL - 21.2 mL

= 6.6 mL

Mass of the object = 22.4 g

Density = Mass / Volume

= 22.4 g / 6.6 mL

= 3.39 g/mL

4.

Accepted value is the value that scientists and community accept as true. This is a theoretical value.

But the measured value is the value that you obtain from doing experiments. This is the actual value.

If your measured value is more close to the accepted value, then your measured value is more precise. But, if your measured value is far away from accepted value means that your value is not precise and there may have some errors.

5.

Answers : Percent error is 9.11 %

The element which has 7.13 g/cm³ as density is Zinc (Zn).

Explanation;

Percent error can be calculated by using following formula.

% error = ( (measured value - accepted value) / accepted value ) x 100%

= ( (7.78 g/cm³ - 7.13 g/cm³) / 7.13 g/cm³ ) x 100%

= 9.11 %

Chemistry

Question 1 (1 point) roland is measuring a physical property of an object. he records the measurement: 3.12g/cm3 roland was most likely measuring which of the following: question 1 options: mass weight volume density question 2 (1 point) a sugar cube has a mass of 11.2 g. each side is 2 cm long. what is the density of the sugar cube? hint: find the volume of the cube first. question 2 options: 5.6 g/cm3 8 cm 4 g/cm3 1.4 g/cm3 question 3 (1 point) match the word with the correct definition. question 3 options: is a measure of the amount of matter

Step-by-step answer

P Answered by Specialist

Explanation:

Solution 1:

Roland is measuring Density. Density is mass per unit volume. If you look at the reading: 3.12 g/cm³, it is mass per unit volume as grams (g) is a unit of mass and cm³ is a unit of volume.

Solution 2:

Mass = 11.2 g

Length of sides = 2cm

Thus volume = (Length)³

Volume = (2)³ = 8 cm³

Thus, Density will be,

$Density = \frac{Mass}{Volume}$

$Density = \frac{11.2}{8}$

Density = 1.4 g/cm³

Solution 3:

Volume: It is a measure of the amount of space that a substance or an object takes up.

Mass: It is a measure of the amount of matter in a substance or an object.

Weight: It is a measure of the force generated by gravity.

Solution 4:

Mass of block A and B are same.

We know that,

Weight = Mass × (Acceleration due to gravity)

It implies that the weight is not same for both the blocks. As gravity on the Moon is 6 times less than that on Earth.

Their size is different that means their volume is different

Since, volume and mass are different their density is also different.

Solution 5:

Matter has mass.

It takes volume.

All the matter is made up of atoms and compounds.

The volume depends on the the size which can differ so density will not be same for all the matter.

What is the density of an object with a mass of 1.2 grams and a volume of 1.1cm3?

Step-by-step answer

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