In order to find how many milligrams is given to the patient we need to determine the rate by dividing what is available then multiply by the amount that was ordered.
Step 1: (20.0mg / 7.5mL) = 2.66667 mg/mL
Step 2: (2.66667mg/mL x 4.5mL) = 12mg
*Note that mL unit cancels out so we are left with mg
Answer: 12.0 mg of phenobarbital elixir
The formula for sucrose is C12H22O11 with a molecular mass of approx 342g/mol
% mass of C = 12(12) / 342 × 100% = 42.1%
% mass of H = 22(1) / 342 × 100% = 6.43%
% mass of O = 11(16) / 342 ×100% = 51.5%
Bases are iconic compounds that produce negative hydroxide ions (OH-) when dissolved in water. Bases taste bitter, feel slippery, and conduct electricity when dissolved in water.... Bases turn red litmus paper blue. The strength of bases is measured on the pH scale.
You answer this by using the pH formula and and the relation of pH and pOH, pH = -log[H+] and 14 = pH + pOH. The correct classification are as follows:
<span>A. [H2O+]=6.0x10^-12
basic
B. [H3O+]=1.4x10^-9
basic
C. [OH-]=5.0x10^-12
acidic
D. {OH-]=3.5x10^-10
acidic
Hope this answers the question.
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One benefit of using ph instead of molar concentrations is that since molarity is a rate of “ moles per liter" , Molarity (M) is used to measure the concentration of hydrogen ions in a solution, which is used with pH applications. ... The H+ is the molarity number, which shows the concentration of hydrogen ions in the solution.
