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What Mass of sodium oxide formed when 6.9 grams sodium are heated in air?
To find the mass of sodium oxide formed, we first need to calculate the moles of sodium used, which is 0.3 moles (6.9g / 23g/mol). Since one mole of sodium reacts with one mole of oxygen to form sodium oxide, the moles of sodium oxide formed is also 0.3 moles. The molar mass of sodium oxide (Na2O) is 62g/mol. Therefore, the mass of sodium oxide formed is 18.6 grams (0.3 moles * 62g/mol).
How many moles are in 7.94g of sodium oxide?
The formula mass of sodium oxide, Na2O is 2(23.0)+16.0 = 62.0 Amount of sodium oxide = 7.94/62.0 = 0.128mol
The density of a 20 percent by mass ethylene glycol solution in water is 1.03gml Find the molarity of the solution?
To find the molarity of the solution, you first need to calculate the mass of ethylene glycol in the solution. Then convert it to moles using the molar mass of ethylene glycol. Finally, calculate the molarity by dividing the moles of ethylene glycol by the volume of the solution in liters.
What mass of PCl 5 will be produced from the given masses of both reactants?
What mass of will be produced from the given masses of both reactants? 28.0 g/P4 / 123.9 g/P4 = 0.2260 moles/ P4 0.2260 moles /P4 * 4 moles PCl5/1 mole/P4=0.904 moles/PCl5 54.0 g/Cl2 / 70.9 g/Cl2 = .7616 moles/Cl2 .7616 moles / Cl2 *4 moles PCl5/10 moles Cl2=.30 This is about limiting reagents You need to use 2P + 5Cl2 --> 2PCl5 [or P4 + 10Cl2 --> 4PCl5 if you prefer] that tells you that 2P = 62g needs 5Cl2 = 355g Cl2 to react 69.3g
Nitrogen and hyrogen form ammonia by the reaction N2 plus 3H2 to 2NH3. If 56 grams of nitrogen and 85 grams of hydrogen react to form 62 grams of ammonia. What is the percent yield?
To find the percent yield, first calculate the theoretical yield of ammonia based on the given amounts of nitrogen and hydrogen. Then compare the actual yield (62g) with the theoretical yield to calculate the percent yield using the formula: (actual yield/theoretical yield) x 100%. The percent yield would be the actual mass of ammonia produced (62g) divided by the theoretical yield of ammonia.
What Mass of sodium oxide formed when 6.9 grams sodium are heated in air?
To find the mass of sodium oxide formed, we first need to calculate the moles of sodium used, which is 0.3 moles (6.9g / 23g/mol). Since one mole of sodium reacts with one mole of oxygen to form sodium oxide, the moles of sodium oxide formed is also 0.3 moles. The molar mass of sodium oxide (Na2O) is 62g/mol. Therefore, the mass of sodium oxide formed is 18.6 grams (0.3 moles * 62g/mol).
How many moles are in 7.94g of sodium oxide?
The formula mass of sodium oxide, Na2O is 2(23.0)+16.0 = 62.0 Amount of sodium oxide = 7.94/62.0 = 0.128mol
When 46g of sodium were exposed to dry air 62g of sodium oxide formed how many grams of oxygen from the air were used?
To find the amount of oxygen used, we need to consider the difference in mass between sodium and sodium oxide. The mass increase is 16g (62g - 46g) which corresponds to the amount of oxygen used from the air. Therefore, 16g of oxygen from the air were used.
If mass is 62g and the volume is 80cm what is the density?
Assuming you mean 80 cubic centimeters, the density would be 62/80 or 0.775gms/cc
What mass of sodium oxide could be made from 115grams of sodium?
Balanced equation: 2Na(s) + O2(g) ---> Na2O(s)moles Na = 115 g x 1 mol/23 g = 5 molesmoles Na2O possible = 1/2 x 5 moles = 2.5 moles (b/c the mole ratio of Na2O:Na is 1:2)mass Na2O possible = 2.5 moles x 62 g/mole = 155 grams (assuming O2 is not limiting)
What is the density of a sample of ore that has a mass of 62 g and occupies 21.9 cm3 (round to the nearest tenths)?
density = mass / volume = 62g / 21.9 cm³ ≈ 2.8 g/cm³
How much does a lotus elise cost?
usual 62g
What do 62 gms equal?
If you are referring to grams, 62g is approximately equal to 2.186985638 ounces.
How many grams of sugar in a Squirt drink?
A 20oz bottle of Squirt contains 62g of sugar.
What is the best protein shake powder for muscle growth and how much does it cost-link please?
Get MHP's Up Your Mass its intense with 62g of protein and 820 calories and a few thousand milligrams of amino acids a serving go to GNC.com and it costs between $25 and $45 and lots of flavors
What is the equivalent weight of sodium oxalate?
mw : 134 /2= 67
The density of a 20 percent by mass ethylene glycol solution in water is 1.03gml Find the molarity of the solution?
To find the molarity of the solution, you first need to calculate the mass of ethylene glycol in the solution. Then convert it to moles using the molar mass of ethylene glycol. Finally, calculate the molarity by dividing the moles of ethylene glycol by the volume of the solution in liters.
