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What is the mass gram of one molecule of caffeine CaH10N4o2?
The molecular mass of caffeine (C8H10N4O2) is approximately 194.19 g/mol. Therefore, the mass of one molecule of caffeine is 194.19 g/mol in grams.
How many atoms of carbon are present in 34.5 g of caffeine C8H10N4O2?
Step 1: what's the molar mass of caffeine? Using the periodic table, 12(8)+1(10)+14(4)+16(2)=194 g/mol. Step 2: given 34.5 grams, how many moles is that? 34.5/1=194/x; solve for x to get 0.18 moles caffeine. Step 3: how many molecules of caffeine is that? 0.18 moles times Avogadro's constant; 0.18(6.02x1023)=1.08x1023 molecules. Step 4: how many carbon atoms is that? Formula says 8 carbon atoms per molecule; 8(1.08x1023)=8.64x1023 carbon atoms. This wasn't too hard because you didn't have to change up the scientific notation at all. Just watch your proper scientific notation format in you do have to change it.
What mass of nitrogen in contained in 0.468 g of caffeine?
To calculate the mass of nitrogen in 0.468 g of caffeine, you need to determine the molar mass of caffeine (C8H10N4O2) and the molar mass of nitrogen. Then, compute the proportion of nitrogen in caffeine by dividing the molar mass of nitrogen by the molar mass of caffeine, and multiply this by the mass of caffeine given. The mass of nitrogen in 0.468 g of caffeine is around 0.133 g.
What mass of nitrogen is contained in 0.468 g of caffeine?
To find the mass of nitrogen in 0.468 g of caffeine, first determine the molar mass of caffeine, which is 194.19 g/mol. Next, calculate the mole ratio of nitrogen in caffeine, which is 3 nitrogen atoms per 1 molecule of caffeine. Then, convert 0.468 g of caffeine to moles, and finally to mass of nitrogen. The mass of nitrogen contained in 0.468 g of caffeine is approximately 0.024 g.
How many mol of oxygen in 3.5 mol of caffeine.?
The molecular formula for caffeine is C8H10N4O2. As can be seen each mole of caffeine contains TWO moles of O. Thus 3.5 moles caffeine x 2 moles O/mole caffeine = 7.0 moles oxygen
What is the mass in grams of 7.50 and times1020 molecules of caffeine C8H10N4O2?
To calculate the mass in grams of 7.50 x 10^20 molecules of caffeine (C8H10N4O2), you need to determine the molar mass of caffeine and then convert the number of molecules to moles using Avogadro's number. Finally, multiply the moles of caffeine by the molar mass to find the mass in grams.
What is the mass of 0.7891 mol of ferric oxide (Fe2O3)?
Atomic Mass of Fe: 55.8g/mol Atomic mass of O: 16g/mol Molecular mass of Fe2O3: 2(55.8)+3(16) = 159.6g/mol mass = Molecular mass x number of moles mass = 159.6g/mol x 0.7891mol = 125.94g
What is the mass of 0.7891 mol of ferric oxide Fe2O3?
Atomic mass of Fe: 55.8g/mol Atomic mass of O: 16g/mol Molecular mass of Fe2O3: 2(55.8)+3(16) = 159.6g/mol mass = Molecular mass x number of moles mass = 159.6g/mol x 0.7891mol = 125.94g
What is the mass of 0.7891 mol of ferric oxide?
Atomic Mass of Fe: 55.8g/mol Atomic mass of O: 16g/mol Molecular mass of Fe2O3: 2(55.8)+3(16) = 159.6g/mol mass = Molecular mass x number of moles mass = 159.6g/mol x 0.7891mol = 125.94g
What is the mass in grams of 0.330mol of calcium?
The mass is 0.330 mol Ca (40.08 g/mol) = 13.2 g Ca
What is the mass of 0.45 mol of ammonium sulfate?
To calculate the mass of 0.45 mol of ammonium sulfate (NH4)2SO4, you need to know its molar mass. The molar mass of (NH4)2SO4 is 132.14 g/mol. Multiply the number of moles (0.45 mol) by the molar mass to get the mass: 0.45 mol x 132.14 g/mol = 59.46 grams. Therefore, the mass of 0.45 mol of ammonium sulfate is 59.46 grams.
What is the mass of a sample containing 5.82 mol of zinc?
378.3g You multiply the RMM by the Concentration (mol) Mass(g)=Concentration(mol)*RMM
