The new volume of gas Y is 89.38 mL
From the question given above, the following data were obtained:
Initial volume (V₁) = 82.0 mL
Initial temperature (T₁) = 27.0 °C = 27 + 273 = 300 K
Final temperature (T₂) = 54.0 °C = 54 + 273 = 327 K
Pressure = 3 atm = constant
<h3>Final volume (V₂) =? </h3>
Since the pressure is constant, we shall determine the final volume of gas Y using the Charles' law equation as follow:
Cross multiply
300 × V₂ = 82 × 327
300 × V₂ = 26814
Divide both side by 300
<h3>V₂ = 89.38 mL</h3>
Therefore, the new volume of gas Y is 89.38 mL
Learn more: brainly.com/question/12835309
Answer:
397 g
Explanation:
From the information given in the question ,
the atomic mass of X = 12 ,
and , the atomic mass of Y = 1 .
For the molecular formula , X₇Y₁₁ , the molecular mass is given as -
X₇Y₁₁ = 7 * atomic mass of X + 11 * atomic mass of Y
= 7 * 12 + 11 * 1
= 84 + 11 = 95 g / mol
Hence , molecular mass of X₇Y₁₁ = 95 g / mol .
Moles is denoted by given mass divided by the molecular mass ,
Hence ,
n = w / m
n = moles ,
w = given mass ,
m = molecular mass .
From question ,
moles n = 4.18 mol
and ,
m = molecular mass of X₇Y₁₁ = 95 g / mol .
To find the mass of the compound X₇Y₁₁ , the above formula can be used , and putting the respective values ,
n = w / m
4.18 = w / 95
w = 4.18 * 95 = 397 g
Sound energy is produced by vibrating objects.
Example: when you speak you vibrate the air molecules in the air. If you where to speak in space no “sound” would be produced since there is nothing for the vibration of your voice to travel through.
Answer:
D. They react readily with oxygen in the air
