joelly173

substance #2: 1918 mg

substance #3: 50 mg

substance #4: 4 mg

a) substance #2 will diffuse fastest at first but the other materials will catch up within an hour

b) The rate of diffusion for the four substance will be equal

Consider the following, a model cell has 20% solute and is in a 95% water solution is the cell Hypotonic, Isotonic Or Hypertonic

Lab question NaCl reaction to Elodea?

In a lab, imagine that you are given a section of aquatic plant Elodea, to observe. As part of your observation, you prepare a wet mount of Elodea and add a 20% NaCl to your slide. Will the cell:

a) Shrink but the cell wall remains unchanged

b) Cell wall would shrink as will the rest of the cell

c)Cell expands and eventually burst

a) Osmosis moves materials from high to low concentration, diffusion does the opposite

b) Osmosis moves materials from low to high concentration, diffusion does the opposite

c)Osmosis involves the movement of water, diffusion does the movement of solute

d) There's no difference between the two

a) Blue Black

b)Violet

c)Orange /Gold

d) Red

a)Diffusion

b)Heat

c)Polarity

d)Osmosis

Imagine that you have been assigned four substances for which you will observe the rate of diffusion.

The only information that you have about your materials is the molecular weight of each substance, listed below:

Substance #1: 212 mg

Substance #2: 1918 mg

Substance #3: 50 mg

Substance #4: 4 mg

If the substances are allowed to diffuse for one hour, what can you predict about the rate of diffusion?

Please show me steps too, so I can learn to solve it in the future.

The equation of the ellipse that has a center at (6,1), a focus at (2,1), and a vertex at (1,1), is

(x−C)^2/A^2+(y−D)^2/B^2=1

Find the standard form for the equation of a circle

(x−h)2+(y−k)2=r2

with a diameter that has endpoints (−6,8) and (5,9).

h=  

k=  

r=

Find a formula for the general term an of the sequence assuming the pattern of the first few terms continues.

{82,84,88,816,832,...}

Assume the first term is a1.

an =

Write the arithmetic sequence −9,−7,−5,−3,... in the standard form:

an=

Find a formula for the general term an of the sequence assuming the pattern of the first few terms continues.

{92, 94, 98, 916, 932, ⋯}

Assume the first term is a1

an =

Find the partial sum S11 for the arithmetic sequence with a=3,d=4.

S11=

What is the density of krypton gas at 1.21 atm and 34.9°C. Express your answer in g/L.