Hello, in this situation, the chemical reaction occurring is as follows: Next, we will ascertain the limiting reactant by calculating the moles of magnesium oxide produced from 3.86 g of magnesium and 155 mL of oxygen using the given mole ratios of 2:1:2 and applying the ideal gas equation, demonstrating that oxygen is the limiting reactant because it generates the least magnesium oxide. Subsequently, we determine the mass of magnesium consumed solely by the oxygen.
Response:
2200 mg of antibiotic
Explanation:
The prescribed antibiotic dosage is 40 mg/kg of body weight.
For a patient weighing 55 kg, we calculate the dose of antibiotic as follows:
If we analyze 40/1000000, we can determine antibiotic allocation in kg per kg of weight
= 0.00004 kg of antibiotic for each kilogram
0.00004 multiplied by 55 (to find out the required amount for a 55 kg individual)
= 0.0022 kg
This 0.0022 figure converts to milligrams as follows
0.0022*10^6
= 2200 mg of antibiotic is indicated for a patient weighing 55 kg.
Answer: The right choice is (c) application of both a mobile phase and a stationary phase.
Explanation:
Chromatography: This refers to a technique for separating a mixture where the mixture is distributed between two phases at varying rates, one being stationary and the other moving.
Mobile phase: The component in which the mixture is dissolved is referred to as the mobile phase.
Stationary phase: This is an adsorbent medium that remains in place while a liquid or gas passes over its surface, thus remaining stationary.
Consequently, a key characteristic of any chromatography technique involves utilizing both a mobile and a stationary phase.
= 5.902 kg