Answer:
4.49 mmHg
Explanation:
Formula for osmotic pressure → π = M . R . T
M → molarity
Let's determine the moles of pepsin (mass / molar mass)
0.5 g / 35000 g/mol = 1.43 mol ×10⁻⁵ moles
These moles are in 60 mL of an aqueous solution. Let's determine M (mo/L)
1.43 mol ×10⁻⁵ mol / 0.060 L = 2.38×10⁻⁴ M
Noticed we changed the volume from mL to L → 60 mL . 1L/1000mL
T → T°K = T°C + 273 → 30°C +273 = 303K
Now we can put data on the formula:
π = 2.38×10⁻⁴ mol/L . 0.082 L.atm/mol.K . 303K
π = 5.91×10⁻³ atm
Let's convert the atm to mmHg
5.91×10⁻³ atm . 760mmHg / 1atm = 4.49 mmHg
Answer:
Explanation:
The de
velopment of airbags began with the idea for a system that would ... of deaths or serious injuries decrease when an airbag and seat belt are used, ... An airbag must be able to deploy in a matter of milliseconds from the initial ... as hard as stone-- not the protective cushion you would want to crash into! ... Reactants ...
Answer:
11.442E23molecules
Explanation:
Given data:
Number of moles of water = 1.9 mol
Number of molecules of water = ?
Solution:
The given problem will solve by using Avogadro number.
It is the number of atoms , ions and molecules in one gram atom of element, one gram molecules of compound and one gram ions of a substance.
The number 6.022 × 10²³ is called Avogadro number.
For example,
18 g of water = 1 mole = 6.022 × 10²³ molecules of water
In 1.9 moles:
1.9 mol × 6.022 × 10²³ molecules / 1 mol
11.442 × 10²³ molecules
In e notation:
11.442E23 molecules
Answer:
<h3><em>What is filteration</em><em>:</em></h3>
Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. ... In some processes used in the production of chemicals, both the fluid filtrate and the solid filter cake are recovered.
<h3><em>When</em><em> </em><em>do</em><em> </em><em>we</em><em> </em><em>use</em><em> </em><em>it</em><em>:</em></h3>
<em>Filtration is used to separate particles and fluid in a suspension, where the fluid can be a liquid, a gas or a supercritical fluid. Depending on the application, either one or both of the components may be isolated.</em>
<h3><em>In</em><em> </em><em>order</em><em> </em><em>to</em><em> </em><em>separate</em><em> </em><em>a</em><em> </em><em>salt-water</em><em> </em><em>mixture</em><em>,</em></h3><h3><em>should</em><em> </em><em>a</em><em> </em><em>student</em><em> </em><em>use</em><em> </em><em>filtration</em><em>:</em></h3>
The mixture can be separated by filtration, by dissolving the mixture in water. Salt will dissolve in the water, whereas sand will not.
Explanation:
<h3>hope it help's. pls mark as the brainliest.Rocket out.</h3>
Answer:
Low melting point.
Explanation:
We cannot link the pH of a substance from it bonds directly.
Ionic compounds have strong ionic bonds but we cannot say that they will have high or low pH.
High conductivity is a feature of ionic compounds generally (also metals)
low melting point means the bonds are weak so they can be weak covalent bonds.
Low flammability is not related to bonding.
