If a molecule diffusing through extracellular fluid travels 1 mm in 1 sec, how long will it take that molecule to diffuse 1 cm?

1 answer:

5 0

To determine the time, we can simply do dimensional analysis from the given values. We are given the distance the fluid travels per sec and we are given the required distance to travel. Therefore, we simply divide the required distance with the rate given. It is important to take note with the units.

t = .01 m / .001 m/s = 10 s

You might be interested in

How hot, in degrees Celsius, would the air inside the balloon have to get in order for the balloon to lift off the ground? Assum

SVETLANKA909090 [29]

Answer:

The temperature in degress Celsius is 52.25°C

Explanation:

According the equation:

$V(\rho _{a} -\rho _{t})g=mg\\\rho _{a} -\rho _{t}=\frac{n}{V} =\frac{340}{2950} =0.115kg/m^{3}$

$\rho _{t}=\rho _{a} -0.115=1.2-0.115=1.085kg/m^{3}$

The temperature is:

$T=\frac{P}{\rho _{t} R} =\frac{1.013x10^{5} }{1.085*287.05} =325.25K=52.25$ °C

3 0

3 years ago

Imagine that you have a piece of Styrofoam. Suppose you squeezed it hard enough to change its shape. Briefly describe how this c

AleksAgata [21]

Its mass would stay the same, it’s volume would become smaller, and it would become more dense.

6 0

3 years ago

HURRY I WILL GIVE YOU BRAINLIEST

Amiraneli [1.4K]

dim? im not so fluent in this but i did research yesterday

6 0

3 years ago

The basic principle in balancing a chemical equation is to ______. hints

Natalija [7]

Answer: obey the "law of conservation of mass".
_____________________________________

5 0

3 years ago

Read 2 more answers

Given the following equation: 2K + Cl2 -> 2KCl How many grams of KCl is produced from 4.00 g of K and excess Cl2?

Thepotemich [5.8K]

Answer:

42.65g

Explanation:

Given parameters:

Mass of K = 4g

Unknown: Mass of KCl

Solution:

Complete equation of the reaction:

2K + Cl₂ → 2KCl

To solve this problem, we know that the reactant in short supply is potassium K and this dictates the amount of products that would be formed. The chlorine gas is in excess and we can't use it to determine the amount of product that would form.

Now, we work from the known to the unknown. Since we know the mass of K given in the reaction, we can simply find the molar relationship between the reacting potassium and the product. We simply convert the mass to mole and compare to the product. From there we can find the mass of KCl that would be produced.

Calculating number of moles of K

Number of moles = $\frac{mass}{molar mass}$