Answer:
3.92 atm
Explanation:
The formula for the pressure of a gas is P = nRT/V. We have the following:
R - 0.0821 (gas constant)
T - 298 K
V - 3.66 L
n - ? (in moles)
We have to find the moles of the NH₃ gas. To do that, we have to divide the mass of the NH₃ gas by the molar mass of NH₃.
10.0 g × 1 mol NH₃/17.03 g NH₃ = 0.587 moles (rounded to 3 decimal places)
Now we have all the information needed to solve for the pressure.
P = nRT/V
P = (0.587)(0.0821)(298) ÷ 3.66
P = 14.3614246 ÷ 3.66
P = 3.923886503 ⇒ 3.92 atm (rounded to 3 decimal places)
The pressure of the NH₃ gas at a temperature of 298 K and a mass of 10.0 g is 3.92 atm.
Hope that helps.
The volume occupied by the sample is 8.4 cm³
<h3>What is density?</h3>
The density is the ratio of mass of the object to its volume.
Given is the mass m =14.7 g and the density is 1.75 g/cm³, then the volume will be
ρ = m/ V
V =m /ρ
Substitute the values, we get
V = 14.7 /1.75
V = 8.4 cm³
Thus, the volume of the sample is 8.4 cm³.
Learn more about density.
brainly.com/question/15164682
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Hello there!
First you had to multiply by the density by the volume since D=M/V. Please make sure when your units has the same thing and it should be cancel it out.
2.3g/mL*30 mL= 69L is the right answer.
Hope this helps!
Thank you for posting your question at hereon Brainly.
-Charlie
I will give you two clues just incase:
-Change in temperature-usually when a reaction takes place heat will be absorbed or released which result in a temperature change.-eg: put a piece of sodium in water. you will feel or observe that the temperature is increased
-Change in colour-Some times we see a colour change in the media when a reaction takes
How important each one is depends on what you are learning about a chemical reaction. Hope I helped!
