Answer:
mixture
Explanation:
Chromatography separates components of a material based on their difference in polarity. Since the chromatography experiment resulted in more than one mark appearing, there must be more than one component in the material.
Upon standing for 24 hours, the liquid ink separates into its different components based on their differing properties, such as density or solubility. Since a pure substance is homogeneous and has the same properties throughout, the ink cannot be a pure substance.
Answer:
Moist and warm temperatures
Explanation:
Fluid Density= 1000000g/ 500 mL
10000g/5 mL, 2000 g/mL
Density water= 1 g/mL
It is denser than water so it should sink
Answer:
3.00 cm
Explanation:
The absorbance can be expressed using <em>Beer-Lambert's law</em>:
A = ε*b*c
Where ε is a constant for each compound, b is the optical path, and c is the molar concentration of the compound.
Now we <u>match the absorbance values for both solutions</u>, because we want the absorbance value to be the same for both solutions:
A = ε * 1.00 cm * 7.68x10⁻⁶M = ε * b * 2.56x10⁻⁶ M
And <u>solve for b:</u>
ε * 1.00 cm * 7.68x10⁻⁶M = ε * b * 2.56x10⁻⁶ M
1.00 cm * 7.68x10⁻⁶M = b * 2.56x10⁻⁶ M
b = 3.00 cm
B is remaining the constant speed for 4 mins