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To find the answer do the following:
(1) Convert mg to g by dividing by 1000 (1g = 1000mg).
(2) Divide the number of grams by 32 (there are 32g of O2 in one mole of O2).
(3) The answer is 0.0000078 = 7.8E-6 mole. Step three may not be intuitive. If you divide an amount of a substance in grams by the substance's atomic weight, that tells you how many moles of that substance you have.
What else can I help you with?
How many moles of oxygen are in one mole of P4O10?
There are 10 moles of oxygen in one mole of P4O10. This is because each molecule of P4O10 contains 4 phosphorus atoms and 10 oxygen atoms.
How many moles of oxygen in 30L of oxygen gas?
At standard temperature and pressure (STP), one mole of a gas is 22.4L. So, in order to determine how many moles of O2 are in 30L, you do the following: multiply 30L O2 x 1mol O2/22.4L O2, which equals 1.34mol O2.
Calculate the number of moles of oxygen that will dissolve in 45 L of water at 20C if the partial pressure of oxygen is 0.21 ATM Henrys constant for oxygen is 0.0013 mol L ATM?
Using Henry's law, the number of moles of oxygen that will dissolve is calculated by multiplying Henry's constant by the partial pressure of oxygen and the volume of water. So, moles of oxygen = 0.0013 mol L ATM * 0.21 ATM * 45 L = 0.1233 mol of oxygen will dissolve in 45 L of water at 20C.
What volume of oxygen at 350degree Celsius and a pressure of 5.25atm is needed to completely convert 5.00g sulfur to sulfur trioxide?
To calculate the volume of oxygen needed, you can use the ideal gas law formula: PV = nRT. First, calculate the number of moles of sulfur (S) using its molar mass. Then, use the balanced chemical equation for the conversion to find the number of moles of oxygen (O2) required. Finally, plug the values into the ideal gas law formula to find the volume of oxygen needed.
How many moles of oxygen are present in the air?
The amount of oxygen in the air is about 0.21 moles per liter.
What is the volume occupied by 025 moles of chlorine gas?
This volume is 6,197 399 5 at 25 0C.
What is the volume of oxygen occupied by two moles?
The molar volume of a gas at STP (standard temperature and pressure) is 22.4 L/mol. Therefore, the volume occupied by 2 moles of oxygen would be 44.8 L.
What is the volume of 2 mol of oxygen?
The molar volume of a gas at standard temperature and pressure (STP) is 22.4 L/mol. Therefore, the volume of 2 moles of oxygen gas at STP would be 2 moles * 22.4 L/mol = 44.8 L.
What is the volume of 3.00 moles of oxygen gas O2 at standard conditions?
The volume is 67,395 L (25 0C and 1 at).
What is the volume of oxygen occupied by 2 moles at 1.3 ATM pressure at 300 k?
38 L
How many moles of oxygen are in 3.7 moles of C8H11NO2?
3,7 moles of C8H11NO2 have 3,7 moles of oxygen (O2).
What volume of O2 will produce when g of KClO3 is heated at NTP?
3 moles of oxygen are obtained from 2 moles of potassium chlorate.M of KClO3 is 122,55 g, M of O2 is 32, density of oxygen is 1,429 g/L.
How many moles of nitrogen and oxygen are in a cubic foot?
To determine the number of moles of nitrogen and oxygen in a given volume like a cubic foot, you would first need to know the pressure and temperature of the gas. Then you can use the ideal gas law equation, PV = nRT, where P is pressure, V is volume, n is moles, R is the ideal gas constant, and T is temperature. So without knowing the pressure and temperature, it is not possible to determine the number of moles of nitrogen and oxygen in a cubic foot.
What is 16 grams of oxygen how many moles?
16 grams of oxygen how many moles is 0,5 moles.
How many moles of oxygen are produced from twelve moles of potassium chlorate?
12 moles KClO3 (3 moles O/1 mole KClO3) = 36 moles of oxygen.
What volume of oxygen gas at 320k and 680 torr will react with 2.50 L?
To determine the volume of oxygen gas required, we first need to convert the temperature to Kelvin (320 K) and pressure to atm (680 torr = 0.895 atm). Then, we can use the ideal gas law equation, V = nRT/P, where n is the number of moles, R is the ideal gas constant, and V is the volume. Calculate the number of moles using the given volume and pressure, then rearrange the equation to solve for the volume of oxygen gas needed.
How many moles of oxygen would it take to react to 5 moles of hydrogen?
The nunber of moles of oxygen is 2,5.
