Answer: 5.0 g Al3+ x (1 eq. wt. / 9.0 g) = 0.56 eq. wts.
How do you find the number of equivalents per mole?
To calculate molar equivalents for each reagent, divide the moles of that reagent by the moles of the limiting reagent: Note that the molar equivalency of sodium benzoate is 1. This is because sodium benzoate is the limiting reagent. Any reagents used in excess will have a molar equivalency greater than one.
How many equivalents are in 0.40 mole of K+ quizlet?
How many equivalents are in 0.40 mole of K+? 1 eq equals 1 mole, so . 40 eq.
Are equivalents the same as moles?
By this definition, an equivalent is the number of moles of an ion in a solution, multiplied by the valence of that ion. … (The valency of calcium is 2, so for that ion 1 mole is 2 equivalents.)
Which has maximum number of equivalent per mole?
2 gram of H2 has the maximum number of moles.
What is equivalent weight formula?
The formula to calculate the equivalent weight is given as: Equivalent Weight = Molecular weight/ Valency. For example, consider the reaction, H3PO4 → HPO42- + 2H+ The molecular weight of a chemical reaction is 98, and the valency is 2, then the equivalent weight of H3PO4 is.
How many equivalents are in .40 mole of K+?
Answer. The number of equivalents of the given amount of ion is 0.40 Eq.
How many equivalents are in 0.036 mole of Ca2+?
5) How many equivalents are in 0.036 mole of Ca2+? Answer: 0.072 equivalents Page Ref: 9.2 Learning Obj.: 9.2 Global Outcomes: G4 Demonstrate the quantitative skills needed to succeed in chemistry.
How are Mmoles calculated?
Use the molecular formula to find the molar mass; to obtain the number of moles, divide the mass of compound by the molar mass of the compound expressed in grams.
How many equivalents are in 0.25 moles of H2SO4?
The total is 98.08 grams, so a mole of H2SO4 has a mass of that much. 0.25 moles of H2SO4 would therefore have a mass of a quarter of 98.08, or 24.52 grams.
What does 3 molar equivalents mean?
A molar equivalent is the ratio of the moles of one compound to the moles of another. … Usually you are relating the moles of the limiting reagent to the moles of other starting materials or reagents used in the reaction.
Which acid has maximum value of equivalent mass?
sulfuric acid has a molar mass of 98.078(5) g mol−1, and supplies two moles of hydrogen ions per mole of sulfuric acid, so its equivalent weight is 98.078(5) g mol−1/2 eq mol−1 = 49.039(3) g eq−1.