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How many moles of oxygen are present in the air?
The amount of oxygen in the air is about 0.21 moles per liter.
How many mols of NaCl are present in 1 liter of a 0.1M solution of sodium chloride?
There would be 0.1 moles of NaCl present in 1 liter of a 0.1M solution of sodium chloride. This is based on the definition of molarity which is moles of solute per liter of solution.
How many grams of ethanol are in a 0.7 liter bottle of wine?
Assuming 12% alcohol content in wine, there would be 84 grams of ethanol in a 0.7 liter bottle of wine. This is calculated by multiplying the volume of wine by the alcohol content percentage and the density of ethanol.
Calculate the volume of solution needed to dissolve 0.25 moles NaCl to make a 3.0M solution?
3.00 M, or 3 moles per (L) "liter" calls for having 3 moles per liter of the solution. The question asks how many moles must be in 250ml of a solution that has 3 moles per Liter. You must ask yourself what percent of 1 Liter is 250mls? Since there are a thousand ml in one liter, (1000ml=1L), then 250ml is exactly 25% of a Liter, or .25L. So, 250ml can only hold 25% of the 3.00 Molarity. Meaning that you multiply 3 x .25 and get .75 moles.
What is the total sample size (in grams) for a sample of ethanol (CH3CH2OH) which contains 3.36 g of oxygen?
9.675 g Since oxygen has an average atomic weight of 15.999 g/mol that would make it 0.21 moles of oxygen. Ethanol has one atom of oxygen per molecule so that means 0.21 moles of ethanol. Since ethanol has a molecular weight of 46.07 g/mole, 0.21 moles of ethanol would have a mass of 9.675 g.
Convert moles per liter into micro moles per liter?
1 mole = 106 micromoles
How many moles of oxygen are present in the air?
The amount of oxygen in the air is about 0.21 moles per liter.
How many cm3 of ethanol per liter does wine contain?
Ordinary (non-fortified) wine will contain around 130 cm^3 of ethanol.
Grams per liter into moles per liter how to convert?
To convert grams per liter to moles per liter, you need to know the molar mass of the substance in grams per mole. Divide the given mass in grams per liter by the molar mass to get moles per liter. This conversion allows you to express the concentration of a substance in terms of its molecular weight, facilitating comparisons and calculations in chemistry.
What is the conversion factor from grams per liter (g/l) to moles per liter (mol/l)?
The conversion factor from grams per liter (g/l) to moles per liter (mol/l) is the molar mass of the substance in grams per mole.
How many ml equal 0.2M of NaCI?
It depends on how many moles you would like. 0.2M is a ratio which states that you have 0.2 moles per liter of solution.
How much energy does ethanol release?
Ethanol releases about 21.1 megajoules of energy per liter when burned.
How many mols of NaCl are present in 1 liter of a 0.1M solution of sodium chloride?
There would be 0.1 moles of NaCl present in 1 liter of a 0.1M solution of sodium chloride. This is based on the definition of molarity which is moles of solute per liter of solution.
How is molarity expressed?
Molarity is expressed in moles per litre of solution.
If 1000 g of PCP are dissolved in 1000 L of water what is the concentration in terms of moles per liter?
The molar mass of PCP (phencyclidine) is 243.387 grams per mole. So 1000 g of PCP is equal to 4.108 moles. If that many moles is in 1000 liters, than the molarity (in moles per liter) is 4.108 ÷ 1000 = 0.0041 M
Is moles per liter the same as moles per cubic meter?
No, moles per liter (mol/L) and moles per cubic meter (mol/m³) are not the same. Moles per liter is a concentration unit commonly used in solution chemistry, while moles per cubic meter is a unit of amount concentration for gases or substances in the gas phase typically used in gas laws and atmospheric chemistry.
When determining the molarity of a solution the answer must be in terms of?
The molarity of a solution is determined by dividing the number of moles of solute by the volume of the solution in liters. The answer is typically expressed in moles per liter (mol/L) or Molarity.
