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vredina [299]
3 years ago
11

How much mass does 0.1 mole of neon contain

Chemistry
2 answers:
In-s [12.5K]3 years ago
7 0

That would be 2 grams.

KATRIN_1 [288]3 years ago
7 0

well the mass of 0.1 mole or 0.000000000001 centi

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A 36.2 g object has a heat capacity of 12.5 J/ oC. How much energy (in J) is required to raise the temperature by 5.73 oC?
iren2701 [21]

Answer:

\Delta H=2592.825\ J

Explanation:

The expression for the calculation of the enthalpy change of a process is shown below as:-

\Delta H=m\times C\times \Delta T

Where,  

\Delta H  is the enthalpy change

m is the mass

C is the specific heat capacity

\Delta T  is the temperature change

Thus, given that:-

Mass of object = 36.2 g

Specific heat = 12.5 J/g°C

\Delta T=5.73\ ^0C

So,  

\Delta H=36.2\times 12.5\times 5.73\ J=2592.825\ J

\Delta H=2592.825\ J

7 0
3 years ago
Read 2 more answers
Does a liquid release energy or absorb energy when it changes into a gas? into a solid?
loris [4]
As the ice cube melts, it absorbs<span> heat </span>energy<span> from its surroundings. Water molecules frozen in the form of ice are tightly bound. So yes it does.</span><span>
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3 0
3 years ago
How many grams of copper (II) chloride can be found in 500.0 mL of 4.00 mol/L solution?
dlinn [17]

Answer:

269 grams CuCl₂

Explanation:

To find the mass of CuCl₂ (copper (II) chloride), you need to (1) find moles CuCl₂ (via the molarity equation using the volume and molarity) and then (2) convert moles to grams (via the molar mass from the periodic table). The final answer should have 3 sig figs because the given number with the least amount of sig figs (4.00 mol/L) also has 3 sig figs.

<u>(Step 1)</u>

500.0 mL / 1,000 = 0.5000 L

Molarity (mol/L) = moles / volume (L)

4.00 mol/L = moles / 0.5000 L

(4.00 mol/L) x (0.5000 L) = moles

2.00 = moles

<u>(Step 2)</u>

Molar Mass (CuCl₂) = 63.546 g/mol + 2(35.45 g/mol)

Molar Mass (CuCl₂) = 134.446 g/mol

2.00 moles CuCl₂           134.446 g
---------------------------  x  ---------------------  =  269 g CuCl₂
                                          1 mole

5 0
3 years ago
According to the graph, which element is most abundant in Earth’s crust? According to the graph, what percent of Earth’s crust i
Elanso [62]

Answer:

oxygen . 1 percent and 4 percent the are the awnsers

3 0
3 years ago
2. State one difference between gas and vapour. Which of the following substance in the gaseous state should be called a vapour?
Neporo4naja [7]
Difference between Gas and Vapour:
                                                          
Gas:
        A thermodynamic state in which a substance exists only in one phase i.e. Gas phase. In above given examples N₂, He and CO₂ exists as gases at room temperature. These gases cannot form a solid or liquid phase along with gas phase as these states requires very low temperatures.

Vapours:
               It is a thermodyanamic state in which a substance exists in more than one phase. In given options Sulfur can exist in vapor state. This is because sulfur exists in a cyclic or chain form due to catenation (self linkage property). Therefore, a lower members of S allotrops can form a vapours.
3 0
4 years ago
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