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What is the formula molecular weight and color or potassium permanganate?
KMnO4 is the formula; The molecular weight is 158. The substance is a deep purple/almost black solid which in water turns intense purple.
Which substance has a higher molecular weight a methylene blue or potassium permanganate?
Potassium permanganate has a higher molecular weight compared to methylene blue. The molecular weight of potassium permanganate is approximately 158.03 g/mol while the molecular weight of methylene blue is around 319.85 g/mol.
How do you calculate the molecular weight of KCl?
The atomic weight of potassium is 39,0983 g.The atomic weight of chlorine is 25,45 g.The molecular weight of potassium chloride (K + Cl) is 74,5483 g.
What is the conversion of MEQ to mg?
The conversion of milliequivalents (mEq) to milligrams (mg) depends on the substance being measured and its molecular weight. The formula to convert mEq to mg is: mg = mEq × (molecular weight in mg/mEq). For example, for potassium (with a molecular weight of approximately 39.1 mg/mmol), 1 mEq of potassium equals about 39.1 mg. Always ensure to use the correct molecular weight for the specific ion or compound in question.
How to calculate empirial formula from molecular formula?
To calculate the empirical formula from a molecular formula, divide the subscripts in the molecular formula by the greatest common factor to get the simplest ratio of atoms. This simplest ratio represents the empirical formula.
What percent of potaasium dihromate K2Cr2O7 oxygen?
The molecular formula for potassium dichromate is K2Cr2O7. The percentage of oxygen in potassium dichromate is calculated as follows: Molecular weight of oxygen: 16 g/mol Molecular weight of K2Cr2O7: 294 g/mol Percentage of oxygen in K2Cr2O7: (16 g/mol / 294 g/mol) * 100% = 5.44% Therefore, oxygen constitutes approximately 5.44% of the compound potassium dichromate.
What is the molecular weight of potassium ferricyanide?
329.244 g/mol
What is the molecular formula of a compound if the weight is of a unit of the compound is 120 and the empirical formula is C3H4?
To find the molecular formula, you first need to calculate the empirical formula mass of C3H4. C3H4 has an empirical formula weight of 40 g/mol. If the molecular weight is 120 g/mol, then the molecular formula would be 3 times the empirical formula, so the molecular formula would be C9H12.
What is the molecular weight of dipotassium oxide?
The molecular formula of dipotassium oxide is K₂O. To calculate its molecular weight, you sum the atomic weights of its constituent elements: potassium (K) has an atomic weight of approximately 39.1 g/mol, and oxygen (O) has an atomic weight of about 16.0 g/mol. Therefore, the molecular weight of K₂O is (2 × 39.1) + (1 × 16.0) = 94.2 g/mol.
Can the molecular weight of KNO3 be 4.2?
No, the molecular weight of KNO3 (Potassium Nitrate) cannot be 4.2. The actual molecular weight of KNO3 is approximately 101.1 g/mol, derived from the atomic masses of potassium (39.1 g/mol), nitrogen (14.0 g/mol), and oxygen (16.0 g/mol) in the compound.
What is the formula and the molecular weight of iron II sulfate?
Iron(II) sulphate Chemical formula is FeSO4 The molecular weight is 151,908 g (for the anhydrous salt)
What additional information do you need to determine the molecular formula?
To determine the molecular formula, you need the molecular weight of the compound, the empirical formula, and any information about the compound's structure or the number of atoms of each element present. Additionally, knowing the types of elements involved can also help in calculating the molecular formula accurately. If the empirical formula is known, the ratio of the empirical formula's mass to the molecular weight will help in finding the actual molecular formula.
