A 3.53g sample of (NH4NO3) was added to 80.0mlof water in a constant pressure calorimeter of negligible heat capacity. As a resu
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MW of gas : 124.12 g/mol
<h3>Further explanation </h3>Density is a quantity derived from the mass and volume
Density is the ratio of mass per unit volume
With the same mass, the volume of objects that have a high density will be smaller than objects with a smaller type of density
The unit of density can be expressed in g/cm³ or kg/m³
Density formula:
ρ = density
m = mass
v = volume
glass vessel wieight = 50 g
glass vessel + liquid = 148 ⇒ liquid = 148 - 50 =98 g
volume of glass vessel :
An ideal gas :
m = 50.5 - 50 = 0.5 g
P = 760 mmHg = 1 atm
T = 300 K
Answer: 0.245 moles of oxygen must be placed in the container to exert the given pressure at the given temperature. The Ideal Gas Law equation gives the relationship among the pressure, volume, temperature, and moles of gas.
Further Explanation:
The Ideal Gas Equation is:
where:
P - pressure (in atm)
V - volume (in L)
n - amount of gas (in moles)
R - universal gas constant
T - temperature (in K)
In the problem, we are given the values:
P = 2.00 atm (3 significant figures)
V = 3.00 L (3 significant figures)
n = ?
T = 25.0 degrees Celsius (3 significant figures)
We need to convert the temperature to Kelvin before we can use the Ideal Gas Equation. The formula to convert from degree Celsius to Kelvin is:
Therefore, for this problem,
Solving for n using the Ideal Gas Equation:
The least number of significant figures is 3, therefore, the final answer must have only 3 significant figures.
Learn More
1. Learn more about Boyle's Law brainly.com/question/1437490
2. Learn more about Charles' Law brainly.com/question/1421697
3. Learn more about Gay-Lussac's Law brainly.com/question/6534668
Keywords: Ideal Gas Law, Volume, Pressure