(25 g)/(18.015 g/mol) = 0.666 moles. When dividing by two units that both use grams in their measurement the grams cancel each other out, leaving only the moles.
This calculation means that you need one mole of salt. Now, you need to use the molar mass of salt in order to calculate how much you need to weigh out. 1mol(58.44g1mol)=58.44g This calculation means that if you wanted to make a 1 liter solution of 1M NaCl, you would need to w...
This calculation means that you need one mole of salt. Now, you need to use the molar mass of salt in order to calculate how much you need to weigh out. 1mol(58.44g1mol)=58.44g This calculation means that if you wanted to make a 1 liter solution of 1M NaCl, you would need to w...
Once you have both the molecular mass and physical weight of the compound, you can use a simple formula to calculate the number of moles present in the sample. Number of moles = Weight of compound (in grams) / molecular weight of compound In our example, the weight of NaCl is 100 grams...
To calculate the molecular mass of a compound, you need to know two things. The first is the molecular formula, and the second is the atomic mass number of each of the elements that comprise it. The atomic mass number for each element is listed in atomic mass units under its symbol in...
Calculate the molarityof a solution prepared by dissolving 23.7 grams of KMnO4into enough water to make 750 mL of solution. This example has neither the moles nor liters needed tofind molarity, so you must find the number ofmolesof thesolutefirst. ...
How many calories will it take to melt 75 grams of ice? How do I calculate the standard reduction potential of 2 MnO2(s) + 2 NH4+(aq) + 2 e- -Mn2O3(s) + 2 NH3(g) + H2O(l) ? Do I have to combine multiple reactions?
moles CO2= 454 g x 1 mol/44.01 g = 10.3 moles Answer There are 10.3 moles of CO2in 454 grams of CO2. Moles to Grams Example Problem Sometimes you're given a value inmolesand need to convert it to grams. To do this, first calculate the molar mass of a sample. Then, multiply it...
Re: How to i convert g/mol to mol% g/dm3 mg/ml « Reply #5 on: November 17, 2011, 12:47:45 AM » I guess mM means milli molar. So it is 0.00512 mM = 0.00512 mmol/lWith the molecular weight you can calculate the others. Logged Aetos...
The molar mass of sucrose, or table sugar, is 342 grams. Calculate how many grams of sucrose are required to make 3.0 liters of 0.50 M sucrose solution. How many grams of sucrose (molecular weight = 342.3 g/mol) would you dissolve in 350...