Answer:
hope it is use full to you
Explanation:
The gas constant is denoted by the symbol R or R. It is equivalent to the Boltzmann constant, but expressed in units of energy per temperature increment per mole, i.e. the pressure–volume product, rather than energy per temperature increment per particle.
it is a physical constant that is featured in many fundamental equations in the physical sciences, such as the ideal gas law, the Arrhenius equation, and the Nernst equation. As a consequence, the value of the gas constant is also exactly defined.
The answer should be the first one, cells are made of living things. Which is false, because living things do not make up cells, cells make up living things.
The heat absorbed to raise temperature : Q = 31350 J
<h3>Further explanation
</h3>
Given
m = mass = 150 g
Δt = Temperature difference : 50 °C
Required
Heat absorbed
Solution
Heat can be formulated
<em>
Q = m.c.Δt
</em>
The specific heat of water = c = 4.18 J/g °C
Input the value :
Q = 150 x 4.18 x 50
Q = 31350 J
Answer:
option D is correct
D. This solution is a good buffer.
Explanation:
TRIS (HOCH)CNH
if TRIS is react with HCL it will form salt
(HOCH)CNH + HCL ⇆ (HOCH)NHCL
Let the reference volume is 100
Mole of TRIS is = 100 × 0.2 = 20
Mole of HCL is = 100 × 0.1 = 10
In the reaction all of the HCL will Consumed,10 moles of the salt will form
and 10 mole of TRIS will left
hence , Final product will be salt +TRIS(9 base)
H = Pk + log (base/ acid)
8.3 + log(10/10)
8.3
Two factors that determine whether a molecule is polar are the types of atoms in the molecule and the SHAPE of the molecule.
A polar molecule is a molecule with two opposing charges, one end of the molecule has a partial negative charge while the other end has a partial positive charge. This occurs because the molecule is not totally symmetric. The polarity of a substance is typically determined by the characteristics of its constituent atoms and the shape of the molecule. Polar molecules are usually bent or trigonal in shape.