Answer : The number of moles of is 0.6156 moles.
Solution : Given,
Mass of = 186.7 g
Molar mass of = 303.256 g/mole
Formula used :
Now we have to calculate the moles of .
Therefore, the number of moles of is 0.6156 moles.
The correct answer is option C. Solutions that have more OH– than H+ ions are bases. These are substances that are slippery to touch and has an astringent taste. It reacts with acids in a neutralization reaction forming salts. It accepts protons. Examples are sodium hydroxide and potassium hydroxide.
We can calculate the amount of Oxygen in this volume using the Ideal Gas Equation, PV = nRT, where "P" is the pressure, "V" is the volume, "n" is the number of moles of material, "R" is the gas constant, and "T" is the temperature in Kelvin. To properly answer this problem, all of the information needs to be converted into the proper units. Fortunately, everything except the volume and temperature is in the correct units for the Ideal Gas Equation; the volume can be adjusted by converting mL to L (x1000) and the temperature can be adjusted by adding 273.15 to the current temperature (conversion from Celsius to Kelvin).
Plugging in all the values, we find that:
PV = nRT
(2.7 atm)(0.3 L) = n(0.0821*)(313.15 K)
n = 0.0315 mol Oxygen
Under these conditions, 0.0315 moles of oxygen can be placed in this volume.
Hope this helps!
* - the units are liters times atmospheres divided by moles times Kelvin.
The number of moles of NO₂ that would be produced from 3.9 mol of O₂ in the reaction is 5.13 moles NO2.
<h3>What is nitrogen?</h3>
Nitrogen is a monatomic gas. It is the most abundant gas present in the environment.
4.5 mol O2 x (2 mol NO2/ 1 mol O2) = 9 mol NO2
For 57% yield of the reaction
9 mol NO2 x 0.57 = 5.13 moles NO2.
Thus, the number of moles of NO₂ is 5.13 moles.
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