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KatRina [158]
2 years ago
10

List the 3 mole equalities.

Chemistry
2 answers:
mylen [45]2 years ago
6 0

I am not sure if this is what you are looking for, I have done a bit searching.

1 mol = 6..20 x 103 particles (atoms, molecules, formula units)

1 mol = molar mass/formula mass (Periodic Table)

1 mo = 22.4 L for a ga at STP

zloy xaker [14]2 years ago
5 0

12.000 g of 12c is one

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What is the effect of the following on the volume of 1 mol of an ideal gas? The temperature changes from 305 K to 32°C and the p
ryzh [129]

Answer:

The volume increases by 100%.

Explanation:

<u>Step 1:</u> Data given

Number of moles ideal gas = 1 mol

Initial temperature = 305 K

Final temperature = 32°C + 273.15 = 305.15 K

Initial pressure = 2 atm

final pressure = 101 kPa = 0.996792 atm

R = gasconstant = doesn't change

V1 = initial volume

V2= the final volume

<u>Step 2: </u>Calculate volume of original gas

P*V = n*R*T

(P*V)/ T = constante

(P1 * V1) / T1 = (P2 * V2)/ T2

In this situation we have:

(2atm * V1)/ 305  = (0.996792 *V2) / 305.15

0.006557*V1 = 0.003266*V2

V2 = 2*V1

We see that the final volume is twice the initial volume. So the volume gets doubled. The volume increases by 100%.

7 0
3 years ago
What is the percent by mass of 54.7g of calcium chloride dissolved in 500g of water?
Advocard [28]
% by mass = (mass solute/mass solution)*100%
mass  of the solute = 54.7 g
mass of the solution = mass solute + mass solvent=54.7+500=554.7 g
% by mass = (54.7/554.7)*100%≈0.0986*100% = 9.86%

3 0
3 years ago
What is the molality of a solution made by dissolving 2 moles of NaOH in 10<br> kg of water?
zaharov [31]

Answer:

0.2mol/kg

Explanation:

molality is the concentration of a solution in moles of solute per kilogram of solvent

moles of solute (NaOH) = 2moles

mass of solvent in kg. =10kg

Therefore molality. = 2moles/10 kg

=0.2mol/kg

5 0
2 years ago
The temperature of a 95.4 g piece of copper decreases from 48°C to 25°C when the copper releases - 849 J of heat. What is the sp
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This is my workings. Hope am correct

3 0
2 years ago
How many energy levels does this atom have
Bas_tet [7]

Answer:

i feel like it would be four

Explanation:

Srr if i was wrong

8 0
3 years ago
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