2. 3.888g magnesium ribbon was burnt completely in air and 6.488g of magnesium oxide was produced. a. how many moles of magnesium and oxygen are present in 6.488g of magnesium oxide ? b. what is the empirical formula of magnesium oxid...
What is the mass number of zinc? What is the mass number of platinum? How many atoms of titanium are there in 0.120 moles of Ti3O5? What is the mass number for dysprosium? What element has a mass number of 14? What element has a mass number of 65?
where M is the molar mass of oxygen.First, let's calculate the initial volume of the cylinder:V1 = 0.07 m^3 Next, let's calculate the initial number of moles of oxygen in the cylinder at atmospheric pressure and temperature:P1 = 1 atm = 101.325 kPaT1 = 20°C + 273....
Calculate the volume of a 0.500 M sucrose solution (table sugar, C12H22O11) containing 0.926 moles of solute. What is the molar mass of HgO? What is the molar mass of NaCl? What is the molar mass of Ag2SO4? What is the molar mass of trinitrotoluene(TNT), C7H5(NO2)3?
What is molar conversion? Why does one multiply the mass of one element in a given compound by the moles of that compound to find the amount of the elements present in that compound? How many moles of sulphur atoms are present in 2 grams of sulphur?
Step 4: Convert mass of water to kilograms Since molality is defined as moles of solute per kilogram of solvent, we need to convert grams to kilograms: - Mass of water in kilograms = 13.5 g / 1000 = 0.0135 kg. Now we can calculate the molality (m) using the formula: ...
For example,the terms molarityand molalityare sometimes confused in which one is ameasure of the concentration of a solution, and the other is a concentration expressed in anumber of moles of solute per kilogram of solvent.The same applies to endothermic vs.endergonic, atomicradius vs.ionicradiu...
given by the law of definite proportions. To better explain this, we can use carbon dioxide as an example. For every unit amount of carbon dioxide (moles, grams), there is a definite amount of carbon and oxygen present which does...
The first step is to find how many moles of ozone are in 0.2 grams. (Remember, it's a molar ratio, so in most equations, the ratio is not the same for grams.) Toconvert grams to moles, look up the atomic weight of oxygenon the periodic table. There are 16.00 grams of oxygen per...
OH+3O2 2CO2+3H2OCheckthattheequationisbalanced.Checkthattheequationisbalanced.•1moleofethanolreactswith►3molesofoxygen•1moleofethanolreactstoproduce►2molesofcarbondioxide►3molesofwater__NH3+__O2→__NO+__H2O1.Balancethechemicalequation2.Forevery1moleofNH3reacted,howmanymolesofNOare...