![]() The number of grams of KClO3 will be 306. Multiply the given number of moles (2.50 mol) by the molar mass (122.548 g/mol) to get the grams.To determine molecular weight, add the atomic weights of all atoms present in the chemical. The molar mass of KClO3 is 122.548 g/mol. Remember to consider significant digits in your use of the answer. Problem: Convert 2.50 moles of KClO3 to grams. The number of moles of KMnO4 will be 0.158Īnd here is how you should enter this problem into the calculator above: grams to moles problem solution Moles to grams example problem Divide the given mass (25.0 g) by the molar mass (158.032 g/mol) to get the moles.The molar mass of KMnO4 is 158.032 g/mol. Problem: Convert 25.0 grams of KMnO4 to moles.įind out the molar mass of the substance (hint: you can use Molar mass of the substance alone to calculate molar mass). Multiplying by the molar mass constant ensures that the calculation is dimensionally correct: standard relative atomic masses are dimensionless quantities (i.e., pure numbers), whereas molar masses have units (in this case, grams/mole).Īnd this is where our grams to moles/moles to grams calculator shines, thanks to our other calculator - Molar mass of the substance, which calculates molar mass for a substance given the formula.Īll you need to do is correctly enter your formula, choose whether you want a conversion from grams to moles or a conversion from moles to grams, and, in case of g to mol, enter the mass, or, in case of mol to g, enter the moles. The molar mass of a compound is given by the sum of the standard atomic weight (namely, the standard relative atomic mass) of the atoms which form the compound multiplied by the molar mass constant. Depending on the input data it can serve either as grams to moles calculator or as moles to grams calculator. The calculator below calculates the mass of the substance in grams or the quantity of the substance in moles. energy (per mole and per molecule) and spectroscopic units. In many chemistry problems, you need to convert grams to moles or moles to grams. ![]() To use, first choose the unit type from the list below. The molar mass of atoms of an element is given by the standard relative atomic mass of the element multiplied by the molar mass constant, 1 × 10−3 kg/mol = 1 g/mol. This calculator converts between the different units used in Chemistry and the Physical Sciences. The molar mass is a physical property defined as the mass of a given substance (chemical element or chemical compound) divided by the amount of substance. You need to multiply the molar mass of the substance by the number of moles:Īs you can see, the most difficult task here is finding out the molar mass of the substance. You need to divide the mass of the substance by the molar mass of the substance: molar mass of the substance in grams/mole How to convert grams to moles? So, to convert directly from L to gal you multiply by 0.26417203.There is a simple relation between grams and moles: Or, you can find the single factor you need by dividing the A factor by the B factor.įor example, to convert from liters to gallons you would multiply by 0.001 then divide by 0.003785412. To convert among any units in the left column, say from A to B, you can multiply by the factor for A to convert A into m/s 2 then divide by the factor for B to convert out of m 3. To convert from m 3 into units in the left columnĭivide by the value in the right column or, multiply by the reciprocal, 1/x. Multiply by the conversion value in the right column in the table below. To simply convert from any unit into cubic meters, for example, from 10 liters, just Where S is our starting value, C is our conversion factor, and Conversions are performed by using a conversion factor. By knowing the conversion factor, converting between units can become a simple multiplication problem:
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