All categories

3 years ago

Did I get This right I’m confused

Chemistry

1 answer:

Paul [167]3 years ago

3 0

Hey bud !
You were close congrats !
the only problem i saw was the units part at the end.
remember volume is 3 dimensional
length width and height
so it is m^3

You might be interested in

how much energy must be released by 50.0 g of steam to decrease its temperature from 125.0 degrees Celsius to 100.0 degrees Cels

REY [17]

Answer:

5250 Joules

Explanation:

Mass = 50g

Initial Temperature = 125.0 degrees Celsius

Final Temperature = 100 degrees Celsius

Temperature change = Final - Initial = 100 - 125 = -25

Heat = ?

These quantities are related by the equation;

H = mCΔT

where c = specific hear capacity = 4.2 J/g°C

H = 50 * 4.2 * (-25)

H = -5250 J (The negative sign is because heat is being released)

7 0

3 years ago

Plz plz help me with

Zina [86]

Answer:

Explanation:

I dont kniw how to d this

8 0

3 years ago

Electronegativity can best be defined as

lukranit [14]

It's B the degree to which an atom wants to gain more electrons

8 0

3 years ago

A 0.907 mole sample of ideal gas at 12c occupies a volume of 4.25L. What is the pressure of gas?

mel-nik [20]

Pressure of the ideal gas=505.7kPa

Given:

No of moles=0.907mole

Temperature of the gas= $12^{\circ} \mathrm{C}$

Volume of the gas=4.25L

To find:

Pressure of the gas

<u>Step by Step Explanation: </u>

Solution:

According to the ideal gas equation

$P V=n R T$ and from this pressure is derived as

$P=\frac{n R T}{V}$

Where P=Pressure of the gas

V=Volume of the gas=4.25L

n=No of the moles=0.907mole

R=Gas constant=8.314 $J / m o l^{-1} K^{-1}$

T=Temperature of the gas= $12^{\circ} \mathrm{C}$ =273+12=285K

Substitute these known values in the above equation we get

$P=\frac{0.907 \times 8.314 \times 285}{4.25}$

$P=\frac{2149.13}{4.25}$

P=505.7kPa

Result:

Thus the pressure of the ideal gas is 505.7kPa

7 0

3 years ago

The diagram shows a lever. The mechanical advantage of the lever is (_____).

V125BC [204]

Answer:If the diagram shows 3 m and 6 m the answer would be 2.

Explanation:

4 0

3 years ago