Cell engulfs molecules in cell "drinking":

4. What is the mass of N2H4 gas in a 350.0 mL container at 50.0 °C, if the pressure of the gas is

vovangra [49]

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 = $\frac{760}{885}$ = 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 = $\frac{PV}{RT}$

P is the pressure

V is the volume

R is the gas constant = 0.082atmdm³mol⁻¹K⁻¹

T is the temperature

n = $\frac{0.86 x 0.35}{0.082 x 323}$ = 0.01mole

So,

Mass = 0.01 x 32 = 0.36g

5 0

2 years ago

Cloning an individual usually produces orangisms that

german

Answer:

1 dangerous mutations

Explanation:

Cloning could mutation but it's obvious because to clone you'll have to put something into the person to make every thing realistic.

8 0

3 years ago

Read 2 more answers

The leaves of a desert plants often have two or more layers of palisade mesophyll, rather than the single layer that is a charac

Degger [83]

PALISADE CELLS ARE CELLS FOUND WITHIN THE MESOPHYLL IN LEAVES OF DICOTYLED ON PLANTS.THEY CONTAIN CHLLORPLASTS,WHICH CONVERT THE ENERGY STORED IN PHOTONS TO CHEMICAL ENERGY THROUGH PHOTOSYNTHESSIS,WHICH IS MADE UP OF TWO MIN STAGES;THE LIGHT DEPENDENT REACTIONS AND LIGHT INDEPENT REACTIONS

4 0

3 years ago

Discuss how the environmental pressures are different in the local environment compared with its native environment.

lions [1.4K]

hello man sadly this was the last day that he had gone with his parents for the first period of time so I told them that they

4 0

2 years ago

Gastrulation, when the cells organize themselves into an embryo occurs 2 weeks after conception. What do the 3 layers of cells g

Travka [436]

Answer:

Gastrulation is the process where the developing embryo forms the process of the 3 germ layers. These germ layers are formed due to the movement of the single-layered blastula. Gastrulation starts during the third week of the human embryo.

The three germ layers give rise to different organs of the fetus. The 3 layers are ectoderm or outer layer, mesoderm or middle layer, and endoderm or inner layer.

These 3 germ layers give rise to different organs of the human fetus. Ectoderm forms epidermis, skin, hair, olfactory organs, eye lense. glands like pituitary. Sensory nerves, skeleton, pigment cells are also formed from ectoderm.

Ectoderm also forms a neural tube that further divides to form the brain, spinal cord.

Mesoderm form the vertebral column, skeletal muscle, excretory organs, reproductive organs. It also forms blood cells, blood vessels, body cavity or coelom.

The inner layer endoderm gives rise to the lining of the digestive tract, liver, pancreas, bladder, etc.

6 0

3 years ago