Table of Contents
- 1 What is the GM equivalent weight of potassium dichromate?
- 2 What is the equivalent weight of cr2 o7 2?
- 3 How do you find the equivalent weight of potassium permanganate?
- 4 How do you find the equivalent weight of HNO3?
- 5 What is the name of MN NO2 2?
- 6 How will you prepare 0.01 N 100 mL K2Cr2O7?
- 7 What is the equivalent weight of potassium dicromate in grams?
- 8 What is the molecular weight of K2Cr2O7?
What is the GM equivalent weight of potassium dichromate?
Equivalent Mass = molecular mass/number of electrons involved. Since are 6 electrons involved and K2Cr2O7 has molecular mass of = 294.26, thus, the equivalent mass of K2Cr2O7 = 294.26/6 = 49 g/equivalent.
What is the equivalent weight of cr2 o7 2?
Answer: The equivalent weight of in acidic medium will be 36 g/eq.
What is the formula of potassium dichromate?
K2Cr2O7
Potassium dichromate/Formula
What is the equivalent weight of potassium permanganate?
Equivalent mass of KMnO4 in acidic and alkaline medium is 31.6 and 52.7 respectively.
How do you find the equivalent weight of potassium permanganate?
The molar mass of potassium permanganate is 158 g/mol. To find the equivalent mass, divide that molar mass by the mols of electrons taken in its half reaction. That would be five. 158/5 = 31.6 grams/equivalent.
How do you find the equivalent weight of HNO3?
In HNO3, the oxidation number of N is +5. If the product is NO in which the o.n. of N is +2, the change in oxidation number is of 3 units so eqv wt = mol wt/ 3 = 63/3 = 21.
What is the gram equivalent weight of CR 6?
Chromium(6+)
| PubChem CID | 29131 |
|---|---|
| Synonyms | Chromium(6+) Chromium(VI) Chromium hexavalent ion 18540-29-9 Chromium(6+) ion More… |
| Molecular Weight | 51.996 |
| Dates | Modify 2021-12-05 Create 2004-09-16 |
| Description | Chromium(6+) is a monoatomic hexacation and a chromium cation. ChEBI |
How do you find the N-factor of k2cr2o7?
Answer
- Net ionic equation follows:
- Oxidation state of Chromium in reactant side:
- Oxidation state of Chromium at product side:
- Therefore, the n-factor for this atom will be (6 – 3) = 3.
What is the name of MN NO2 2?
Manganese(II) Nitrite Mn(NO2)2 Molecular Weight — EndMemo.
How will you prepare 0.01 N 100 mL K2Cr2O7?
Preparation of 0.1 N Potassium dichromate (K2Cr2O7) Solution
- Transfer 6 g of potassium dichromate (K2Cr2O7) to a platinum dish and dry at 120°C for 4 h. Cool in a desiccator.
- Place 4.9 g of the dried K2Cr2O7 in a 1-L volumetric flask, and.
- Add 100 mL of water.
- Store the solution in a glass-stoppered bottle.
How do you find the equivalent weight of potassium permanganate in alkaline media?
Equivalent weight of a substance (oxidant or reductant) is equal to the molecular weight divided by the number of electrons lost or gained by one molecule of the substance in redox reaction. So, our answer is 31.6 per equivalent.
How to estimate the equivalent weight of potassium dichromate in acidic medium?
Estimate The Equivalent Weight Of Potassium Dichromate In Acidic Medium. Estimate the equivalent weight of potassium dichromate in acidic medium. molecular weight of pottasium dichromate = 294 , X factor in acidic medium = 6. equivalent weight = molecular weight / X factor .
What is the equivalent weight of potassium dicromate in grams?
Gram molar mass of KCr2 O7=294.18 gram . To find equivalent weight of potassium dicromate, we must go through the change of oxidation state of Cr in the reactant and product as well in acid medium . ( Cr2O7^-2→ 2 Cr^+3).
What is the molecular weight of K2Cr2O7?
Potassium Dichromate molecular weight. Molar mass of K2Cr2O7 = 294.1846 g/mol Convert grams Potassium Dichromate to moles or moles Potassium Dichromate to grams Molecular weight calculation: 39.0983*2 + 51.9961*2 + 15.9994*7.
What is the use of potassium dichromate in titration?
Potassium Dichromate is also used to standardize Sodium Thiosulfate solutions. In acidic solution, Potassium Dichromate oxidizes Potassium Iodide to Iodine; the Iodine thus generated can then be titrated with the Thiosulfate solution using Starch Indicator: