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1 year ago

Find the volume of a box with length 25 cm, height 25 cm and width 1.0 m. Volume

Chemistry

1 answer:

mariarad [96]1 year ago

4 0

The volume of a box with length 25 cm, height 25 cm and width 1.0 m is 0.0625m³.

Volume of the box which is a cuboid can be calculated by multiplying the length, breadth and height of the given box.

Volume of the box is given by the product of the length of the box, Height of the box and Breadth or width of the box.

Since, the box is a cuboid, hence the formula is given by the products of length, breadth and height.

Given,

length of the box= 25cm = 0.25m

Height of the box =25cm = 0.25m

width of the box= 1m

Volume = length × width × height of box

Volume = 0.25 × 0.25 × 1

Volume = 0.0625m³

The volume of the box is 0.0625m³.

Learn more about Volume here, brainly.com/question/23118276

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The equation for the synthesis of ammonia is below. How many moles of H 2 are

kkurt [141]

Moles of H₂ are needed to produce 9.33 moles of NH₃ : 13.995

<h3>Further explanation</h3>

A reaction coefficient is a number in the chemical formula of a substance involved in the reaction equation. The reaction coefficient is useful for equalizing reagents and products.

The reaction coefficient in a chemical equation shows the mole ratio of the reactants and products

Reaction for the synthesis of ammonia :

N₂+3H₂⇒2NH₃

moles of NH₃ = 9.33

From equation, mol ratio of H₂ : NH₃ = 3 : 2, so mol H₂ :

$\tt =\dfrac{3}{2}\times 9.33\\\\=13.995$

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How are elements<br> and compounds<br> different?

Nataliya [291]

Answer:

Elements only contain one type of atoms while compounds contain two or more types of atoms.

Explanation:

An example of an element is sodium --> Na (only Na atoms)

An example of a compound can be water --> H2O (contain H and O atoms)

*But the particles within a compound are all the same.

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3 years ago

Read 2 more answers

Calculate the [OH-] and the pH of a solution with an [H+= .00083 M at 25 degrees

sesenic [268]

<h3>Answer:</h3>

1.2 × 10^-11 M

<h3>Explanation:</h3>

<u>We are given;</u>

Concentration of Hydrogen ions [H⁺] as 0.00083 M

<u>We are required to calculate the concentration of [OH⁻]</u>

We know that;

pH = - log [H⁺]

POH = -log[OH⁻]

Also, pH + pOH = 14

With the concentration of H⁺ we can calculate the pH

pH = -log 0.00083 M

= 3.08

But; pH + pOH = 14

Therefore; pOH = 14 - pH

= 14 - 3.08

= 10.92

But, pOH = -log[OH⁻]

Therefore; [OH] = -Antilog(pOH)

Hence; [OH⁻] = Antilog -10.92

= 1.2 × 10^-11 M

Therefore, [OH⁻] is 1.2 × 10^-11 M

6 0

3 years ago

A sample of propane, C3H8, occupies 1.73 mL when the pressure is 320 torr at 30 C. What is the volume at STP

hammer [34]

The volume of the sample of propane at STP is 0.62 mL.

<h3>What is volume?</h3>

Volume is the amount of space that a substance or object occupies.

To calculate the volume of gas at STP, we apply the formula below.

Formula:

PV/T = P'V'/T'................. Equation 1

Where:

P = Initial pressure of gas
V = Initial volume of gas
T = Initial temperature of gas
P' = Standard pressure (SP)
T' = Standard temperature (ST)
V' = Volume of gas at STP.

Make V' The subject of the equation

V' = PVT'/P'T.............. Equation 2

From the question,

Given:

P = 320 torr
V = 1.73 mL
T = 30 °C = (30+273) K = 303 K
P' = 760 torr
T' = 273 K

Substitute these values into equation 2

V' = (320×1.73×273)/(760×303)
V' = 0.62 mL

Hence, the volume of the sample of propane at STP is 0.62 mL.
Learn more about volume here: brainly.com/question/26507715

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