Answer:
0.36g
Explanation:
Given parameters and conversion to standard unit
To solve this problem we must assume ideality
Volume of N₂H₄ = 350mL = 0.35dm³
Temperature of container = 50°C = 50 + 273 = 323K
Pressure = 885torr;
760torr = 1atm
885torr = 
= 0.86atm
Unknown:
Mass of the compound = ?
Solution:
The mass of the compound can be derived using the expression below;
Mass = number of moles x molar mass
molar mass of N₂H₄ = 2(14) + 4(1) = 32g/mol
To find the number of moles;
PV = nRT
n = 
P is the pressure
V is the volume
R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹
T is the temperature
n = 
= 0.01mole
So,
Mass = 0.01 x 32 = 0.36g
Phases or components
Your textbook describes two
sequential phases of interaction between organisms and their environments that
have existed since god's creative work began. Organisms interact with their
environments in different ways. Different organisms of a biological community cooperate
and compete for habitats and share the resources in that habitat.
Cooling a substance causes molecules to slow down and get slightly closer together, occupying a smaller volume that results in an increase in density
Answer:
Cilia, tail-like projections found on the surface of cells, are perhaps best known as molecular flippers that help cells move around. ... Cilia, tail-like projections found on the surface of cells, are perhaps best known as molecular flippers that help cells move around.
Answer:
Lakes and rivers provide Canadians not only with drinking water, food, transportation networks and recreational opportunities, but also with hydroelectricity. In fact, Canada is one of few countries around the world to rely on hydropower for more than half of its electricity needs.
Explanation:
