Answer:
0.21 M
Explanation:
The method to solve this question is to use Beer´s law which is expressed by
A = εcl
where A is the absorbance, ε is molar absorptivity ( M⁻¹·cm⁻¹ ), c is the concentration M (mol/L), and l is the path length in cm.
Solving for c in the above equation
c = A / εl = 0.458 / ( 2.16 M⁻¹·cm⁻¹ x 1.01 cm ) =0.21 M
Note: there is an error in the units for the absorptivity constant, it should have said M⁻¹·cm⁻¹ . You can check this by realizing the absorbance is unitless and when we multiply M⁻¹·cm⁻¹ with the units of concentration c (M) and path length (cm ) the units cancel.
Heat of combustion is a chemical property that can be measured.
Answer:
The electrons of an atom are typically divided into two categories: valence and core electrons. Valence electrons occupy the outermost shell or highest energy level of an atom while core electrons are those occupying the innermost shell or lowest energy levels
Explanation:
i hope u get it :))
Answer:
Which ever item has more water inside of it
Explanation:
Answer:
1.041g is the maximum sigle dose for the person
Explanation:
The maximum dose for acetaminophen is 15.0mg / kg of body weight for adults
To find the maximum single dosage for a person who weighs 153lb we must convert the lb to kg (1lb = 0.4536kg):
153lb * (0.4536kg / 1lb) =<em> 69.4kg is the mass of the person</em>
<em />
As the maximum dose is 15.0mg / kg, the dose of the person is:
69.4kg * (15.0mg acetaminophen / kg) =
<h3>1041mg = 1.041g is the maximum sigle dose for the person</h3>
