Answer:
Dominant traits are traits that more likely to be transferred from a parent to an offspring so scientist use this term dominant.
Cool liquid from 314 K to 273 K, freeze liquid at 273 K, and cool solid to 263 K.
Answer:
The substrate must fit perfectly with an enzyme's active site this in known as the lock and key fit.
Explanation:
The lock and key model was given by the Emil Fisher. The lock is represent an enzyme which is complementary to its substrate and substrate is called key.
when an enzyme is used to catalyzed the reaction, there are active sites on the enzymes through which substrate bind. The active site have specific geometry which is complementary to the substrate so substrate perfectly fit into it.
It is resemble with the lock and key. As there is a specific key for a specific lock this model is just like this.
Answer:
0.13M and 0.16m.
Explanation:
Molarity is defined as the moles of solute present in 1L of solution.
Molality is the moles of solute per kg of solvent.
To solve this problem we need to convert the mass of sucrose to moles using its molar mass and finding the volume in L of the solution and the mass in kg of solvent:
<em>Moles sucrose: </em>
Molar mass:
12C = 12*12.01g/mol = 144.12g/mol
22H = 22*1.005g/mol = 22.11g/mol
11O = 11*16g/mol = 176g/mol
Molar mass of sucrose is 144.12g/mol + 22.11g/mol + 176g/mol = 342.23g/mol
Moles are:
19.0g * (1mol / 342.23g/mol) = 0.0555 moles of sucrose
<em>Liters solution:</em>
425mL * (1L / 1000mL) = 0.425L
<em>kg solvent:</em>
425mL * (0.82g/mol) = 348.5g * (1kg / 1000g) = 0.3485kg
<em>Molarity:</em>
0.0555 moles / 0.425L
<h3>0.13M</h3><h3 />
<em>Molality:</em>
0.0555 moles / 0.3485kg
<h3>0.16m</h3>
Answer:Despite its usefulness, radiocarbon dating has a number of limitations. First, the older the object, the less carbon-14 there is to measure. Radiocarbon dating is therefore limited to objects that are younger than 50,000 to 60,000 years or so.
Explanation: