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What are the half reactions for a galvanic cell with Zn and Mg electrodes apex?
Zn2+(aq) +2e- => Zn(s) and Mg(s) => Mg2+(aq) + 2e-
What is the standard reduction potential E for the half-reaction Mg2 2e- Mg?
-2.37
What do a mole of magnesium Mg and a mole of iron Fe have in common?
Their number of atoms.
Is radium rare or common?
Abundance of radium in the earth crust: 9.10-10 mg/kg Abundance of radium in the sea water: 8,9.10-14 mg/L
What symbols represents a molecule a He b H2 c Mg d Zn e Fe?
H2
How much 100IU Vitamin E in mg?
67 mg
What Vitamins are in kiwi?
Vitamin A - 310 IU Vitamin C - 174 mg Folate (important during pregnancy) - 67 mcg Vitamin B2 - .09 mg Niacin - .9 mg Vitamin B6 - .16 mg Vitamin E - 3 IU Potassium - 588 mg Phosphorus - 71 mg Magnesium - 53 mg Calcium - 46 mg Selenium - 1.1 mg Iron - .72 mg Zinc - .3 mg Copper - .3 mg
Calculate the standard emf of a cell that uses the Mg Mg2 plus and Cu Cu2 plus half cell reactions at 25 degrees C?
Cu + Mg2 --------> Cu2 + Mg Cu --------------> Cu2 + 2e Mg2 + 2e --------> Mg Cu --------------> Cu2 + 2e (E = +0.35) Mg2 + 2e --------> Mg (E = -2.36V) +0.35 + (-2.36) = -2.01V --------------------------------------… Mg + Cu2 --------> Mg2 + Cu Mg --------------> Mg2 + 2e Cu2 + 2e --------> Cu Mg --------------> Mg2 + 2e (E = +2.36V) Cu2 + 2e --------> Mg (E = -0.35V) +2.36 + (-0.35) = +2.01V
What does Be and Mg have in common?
They have two nuclear ☢️
What is the equation for the electron affinity of Mg plus?
If you express your answer as a chemical equation with all forms given, you would get: Mg+(g) + e- -> Mg (g)
What does be and mg have in common on the periodic table?
they are in group two
What is the formula of the common ion derived from Mg?
Mg2+
Is a common balance more sensitive if it detects a difference of 10 mg than detecting difference of 1 mg?
No.
30 iu of vitamin E equal to how many mg of vitamin E acetate?
20 milligrams.
Does common random drug screen show mg?
yes
What are the most common charge of element in magnesium?
Mg-24
How are the indications of a vitamin E status test?
Blood plasma levels of alpha-tocopherol that are 5.0 mg/l, or above, indicate normal vitamin E status; levels below 5.0 mg/l indicate vitamin E deficiency.
