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Liula [17]
3 years ago
9

Methane state at 25 degrees Celsius​

Chemistry
1 answer:
vampirchik [111]3 years ago
4 0
Methane is used as feed stock to chemical industry and is the main constituent of the fuel natural gas. Chemical, physical and thermal properties of methane: Values are given for gas phase at 25 °C /77 °F / 298 K and 1 atm., if not other phase, temperature or pressure given.
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Write the net ionic equation for the reaction that occurs when a solution of hydrochloric acid (hcl) is mixed with a solution of
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Ionic Equation:
H⁺(aq) + Cl⁻(aq) + Na⁺(aq) + CHO₂⁻(aq) → HCHO₂(aq) + Na⁺(aq) + Cl⁻(aq)

Net ionic equation:
H⁺(aq) + CHO₂⁻(aq) → HCHO₂(aq)
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3 years ago
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What is the electron configuration of the calcium ion?​
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[Ar] 4s²
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A stock solution of ammonia in water is 28 wt% NH3. The Formal Weight (FW) of NH3 is 17.03 g/mol). The solution density at room
weqwewe [10]

Answer:

[NH₃] = 14.7 mol/L

Explanation:

28 wt% is a type of concentration that indicates that 28 g of ammonia is contained in 100 g of solution.

Let's determine the amount of ammonia:

28 g . 1 mol / 17.03g = 1.64 moles of NH₃

You need to consider that, when you have density's data it is always referred to solution:

Mass of solution is 100 g, let's find out the volume

0.90 g/mL = 100 g /V

V = 100 g / 0.90mL/g → 111.1 mL

We convert the volume to L → 111.1 mL . 1 L/1000mL = 0.1111 L

mol/L = 1.64 mol/0.1111L → 14.7 M

mol/L = M → molarity a sort of concentration that indicates the moles of solute in 1L of solution

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If the pressure, volume, and temperature of a gas are known, which can most likely be found by using the ideal gas law?
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Standard temperature and pressure
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