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To do this, you need to know the molecular weight of the element you're dealing with, by adding up the atomic weights of the elements involved (found on any Periodic Table). The molecular weight is the mass in grams of the compound in one mole - this will provide you with a conversion factor. So take the measurement in grams and divide it by the molecular weight to convert to moles. Really what you're doing is multiplying the number by 1 mole, and dividing it by the equivalent of one mole, the molecular weight. That's the thought process behind unit analysis and how you get your "units to cancel".
In this case, the answer is about .25 moles O2.
What else can I help you with?
How many grams of water are made from complete reaction of 2.2 moles of oxygen gas with hydrogen gas?
The balanced chemical equation for the reaction between oxygen and hydrogen is2H2 + 02 -> 2H2OThus 2.2 moles of oxygen reacts with 4.4 moles of hydrogen to form 4.4 moles of steam (water in gaseous state).The mass of H2O obtained is thus 4.4 x 18.0 = 79.2g.
What mass of nitrogen is required to react with 16 grams of oxigen?
4 NH3 + 5 O2 ---> 4 NO + 6 H2Omoles NH3 used = 36.3 g x 1 mole/17 g = 2.14 molesmoles O2 needed = 2.14 moles (note a 1mole to 1mole ratio of O2 to NH3 in balanced equation)grams O2 needed = 2.14 moles x 32g/mol = 68.48 grams needed
How many grams of MgO are produced when 40 grams of 02 react with Mg?
Using the balanced chemical equation: 2Mg + O2 -> 2MgO, we can see that 1 mol of O2 reacts with 2 moles of Mg to produce 2 moles of MgO. Calculate the moles of O2: 40g O2 / 32g/mol = 1.25 mol O2 From the equation, 1.25 mol O2 will produce 2.5 mol of MgO. Calculate the grams of MgO produced: 2.5 mol MgO * 40.3 g/mol = 100.75 grams MgO.
How many oxygen atoms does 1 mole of 02 gas have?
1 mole of 02 gas has 12,044 281 714.1023 atoms.
How many moles of NaCl are contained in 100o ml of a 0.20 M solution?
Molarity = moles of solute/Liters of solutionMoles of solute = Liters of solution * Molarity ( 100 mL = 0.1 Liters )Moles of NaCl = 0.1 Liters * 0.20 M NaCl= 0.02 moles NaCl============
How many grams in 15 moles of 02?
15 moles of 02 equal 480 g.
How many grams of water are made from complete reaction of 2.2 moles of oxygen gas with hydrogen gas?
The balanced chemical equation for the reaction between oxygen and hydrogen is2H2 + 02 -> 2H2OThus 2.2 moles of oxygen reacts with 4.4 moles of hydrogen to form 4.4 moles of steam (water in gaseous state).The mass of H2O obtained is thus 4.4 x 18.0 = 79.2g.
How many grams of 02(g) are needed to completely burn 23.7 g of C38H(g)?
The balanced equation is C3H8 + 5O2 ---> 3CO2 + 4H2O moles C3H8 = 23.7 g x 1 mol/44 g = 0.539 moles moles O2 needed = 5 x 0.539 moles = 2.695 moles O2 (it takes 5 moles O2 per mole C3H8) grams O2 needed = 2.695 moles x 32 g/mole = 86.2 grams O2 needed (3 sig figs)
How many moles of 02 gas are in 38.5L of O2 gas?
The answer is 1,72 moles.
How many 02 molecules are needed to react with 5.35 grams of S?
The molar mass of sulfur (S) is approximately 32 g/mol. Therefore, 5.35 grams of S is equal to 5.35/32 = 0.167 moles of S. The balanced chemical equation for the reaction of sulfur with oxygen is given by 2S + 3O2 → 2SO3, which means 3 moles of O2 are needed to react with 2 moles of S. Hence, for 0.167 moles of S, we would need (3/2) * 0.167 = 0.2505 moles of O2, which is equivalent to 0.2505 * 6.022 x 10^23 = 1.51 x 10^22 molecules of O2.
How many grams of magnesium are needed to react with 16g of 02?
The balanced chemical equation for the reaction between magnesium and oxygen is 2Mg + O2 → 2MgO. It shows that 1 mole of Mg reacts with 1 mole of O2. The molar mass of Mg is 24.31 g/mol, and O2 is 32.00 g/mol. First, calculate the number of moles of O2 in 16g, then use the mole ratio from the balanced equation to find the moles of Mg, and finally convert to grams.
How many grams of oxygen gas is contained in 11.2L 02 gas at stp?
At STP (Standard Temperature and Pressure), 1 mole of any ideal gas occupies 22.4 liters. Since 11.2 liters represent half the volume of a mole, we have 0.5 moles of O2 gas. Using the molar mass of oxygen (O2), which is around 32 g/mol, we find that 0.5 moles of O2 gas would be equivalent to approximately 16 grams.
How many grams are equivalent to 20mg?
.02 grams there are 1000 mg in a gram. so divide 20 by 1000 to get .02
How many grams are in a 20 sack of cocain?
.02
What mass of nitrogen is required to react with 16 grams of oxigen?
4 NH3 + 5 O2 ---> 4 NO + 6 H2Omoles NH3 used = 36.3 g x 1 mole/17 g = 2.14 molesmoles O2 needed = 2.14 moles (note a 1mole to 1mole ratio of O2 to NH3 in balanced equation)grams O2 needed = 2.14 moles x 32g/mol = 68.48 grams needed
If a compound is 26 percent nitrogen and 74 percent oxygen what is the emprical formula?
First you want to think "if I had 100 grams of this compound". If you do this, then you will be able to use the percentages as measurements in grams. Completing the sentence: "if I had 100 grams of this compound, then I would have 26 grams of nitrogen and 74 grams of oxygen". The next step is converting the grams to moles.Grams ÷ Atomic weight = moles26.0 grams ÷ 14.0 grams = 1.86 moles N74.0 grams ÷ 16.0 grams = 4.63 moles OThis is a ratio of 1.86:4.63 and is not recognizable as a small whole number ratio. (If this doesn't make sense, see the Law of Definite Proportions). In order to make the two numbers whole numbers, a trick is to divide both by the smallest number. Doing this will ensure that one number will always be 1.1.86 moles N ÷ 1.86 = 14.63 moles O ÷ 1.86 = 2.49Because the last digit is always uncertain to .02, we can say that 2.49 is actually 2.5. Now your ratio is 1:2.5, yet these are still not whole numbers. When you have an increment of .5, then multiply everything by 2.1:2.5 × 2 = 2:5 or 2 nitrogen : 5 oxygenYour final answer is N2O5
How many teaspoons is 20 milligrams?
20 milligrams is zero teaspoon. There are 4.67 grams in a teaspoon, therefore .02 grams is not a teaspoon.
