CHEMISTRY HIGH SCHOOL

What is the mass of an aluminum cylinder that has a volume of 1.50m3

Answers

Answer 1

Answer:

Answer: The mass of aluminium cylinder is 4065 kg.

Explanation:

Density is defined as the ratio of mass of the object and volume of the object.

Mathematically,

$\text{Density}=\frac{\text{Mass of the object}}{\text{Volume of the object}}$

We are given:

Density of aluminium = $2710kg/m^3$

Volume of aluminium cylinder = $1.50m^3$

Putting values in above equation, we get:

$2710kg/m^3=\frac{\text{Mass of aluminium cylinder}}{1.50m^3}\n\n\text{Mass of aluminium cylinder}=4065kg$

Hence, the mass of aluminium cylinder is 4065 kg.

Answer 2

Answer: Aluminium density: 2700g/m^3

therefore; 2700g/m^3 X 1.50m^3 = 4050g = 4.05Kg

Just use the units of density (mass/volume) and the units of what's given to figure it out :)

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Help Please earth science

What is true regarding methane and ammonia?

Answers

Methane has no unbonded electron pairs to interact with the hydrogen; ammonia does.

Which law states that the volume of a gas is proportional to the moles of the gas when pressure and temperature are kept constant?

Answers

I believe this would be Avogadro's law which states ''Equal volumes of all gases, at the same temperature and pressure, have the same number of molecules regardless of their chemical nature and physical properties.''

Answer:

boyles law

Explanation:

Find the [H+] in an acetic acid solution that has a pH of 5.12

Answers

Data:
pH = 5.2
[H+] = ?

Knowing that: (Equation to find the pH of a solution)
$pH = -log[H+]$

Solving:
$pH = -log[H+]$
$5.2 = - log [H+]$
Knowing that the exponential is the opposite operation of the logarithm, then we have:
$[H+] = 10^(-5.2)$
$\boxed{\boxed{[H+] = 6.30*10^(-6)}}\end{array}}\qquad\quad\checkmark$

At 25 Â°c, only 0.0640 mol of the generic salt ab is soluble in 1.00 l of water. what is the ksp of the salt at 25 Â°c? ab(s)â½âââa+(aq)+bâ(aq)

Answers

Answer: $4.09* 10^(-3)$

Explanation:

Solubility product is defined as the equilibrium constant in which a solid ionic compound is dissolved to produce its ions in solution. It is represented as

The equation for the ionization of the is given as:

$AB\rightarrow A^++B^-$

Molar concentration = $(moles)/(Volume)=(0.0640)/(1.00L)=0.0640M$

By stoichiometry of the reaction:

1 mole of $AB$ gives 1 mole of $A^+$ and 1 mole of $B^-$

When the solubility of $AB$ is S moles/liter, then the solubility of $A^+$ will be S moles\liter and solubility of $B^-$ will be S moles/liter.

$K_(sp)=[A^(+)][B^(-)]$

$K_(sp)=[0.0640][0.0640]=4.09* 10^(-3)$

Thus $K_(sp)$ of the salt at $25^0C$ is $4.09* 10^(-3)$

What is the law of conservation of mass? How it is related to balancing chemical equations

Answers

The law of conservation of mass states that whatever goes in comes out the same. That's not the exact concept, but it'll help you remember it.

Here's another way of thinking about it.

Okay, so, we have:

Reactants ⇒ Products

The reactants form into products, but stay the same.

What does this mean?

This means that the mass is conserved. When mass is conserved, the energy is also conserved.

In other words, nothing has changed.

Now, lets relate that to balancing equations.

When you try to balance an equation, what is your goal? ⇒ To get the reactants to equal the products..? Right?

Ah, yes!

Now we have the exact meaning→→→→

The law of conservation of mass states that mass is always conserved in a chemical reaction.

Hope I helped! Please feel free to comment with questions! :)

Law that states that mass is neither created or destroyed in ordinary chemical and physical changes.

List and describe two powerful forces of nature caused by plate tectonics

Answers

Earthquakes and Volcanoes. they are caused by them movung against or away from each other.

Volcanoes and tsunamis

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Water, H2O, frequently forms Hydrogen Bonds with other non metal atoms. Why does water do this? A: the Oxygen has a partial negative charge which attracts atoms and molecules that have a position or partial positive charge B: The Hydrogen has a partial negative charge which attracts atoms and molecules that have a positive or partial positive charge C: Because Oxygen is extremely electronegative it attracts atoms and molecules with a negative or partial negative charge D: Because Hydrogen has a very low electronegative rating it attracts atoms and molecules with a positive or partial positive charge