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.
Answer:
The answer is
<h2>2.0 g/mL</h2>
Explanation:
The density of a substance can be found by using the formula
<h3>
</h3>
From the question
mass = 10 g
volume = 5 mL
The density of the substance is
We have the final answer as
<h3>2.0 g/mL</h3>
Hope this helps you
Answer:
The lowest region of the atmosphere
The water cycle describes how water evaporates from the surface of the earth, rises into the atmosphere, cools and condenses into rain or snow in clouds, and falls again to the surface as precipitation. ... The cycling of water in and out of the atmosphere is a significant aspect of the weather patterns on Earth.
Answer:
4.998 × 10²⁴ amu
Explanation:
Given data:
Mass of substance = 8.3 g
Atomic mass unit = ?
Solution:
The mass of one mole of substance is equal the gram per mole of that substance.
atomic mass unit = g/mol
For 8.3 g:
8.3 × 6.022×10²³
4.998 × 10²⁴ amu
The number 6.022 × 10²³ is called Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
