I assume you mean at standard temperature and pressure. Use,
PV = nRT
(1 atm)(1 liter) = n(0.08206 L*atm/mol*K)(298.15 K)
n = 1/24.466
= 0.04 moles oxygen gas
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stp= 22.4 dm3, 1L = 1 dm3 1mole ---> 22.4dm3 xmole ---> 45dm3 45/22.4 = 2.001 moles
To convert grams per milliliter to moles per liter, you need to know the molar mass of the substance. Assuming the substance is water (H2O), its molar mass is 18.015 g/mol. Therefore, 2.5 grams per 100 milliliters is equivalent to approximately 138.6 mmol/L (millimoles per liter) for water.
Completely depends on the volume of the container.
there are 1000mL in 1L
Is that 0.5L ? If yes, as 1L=1dm3, no. of mole= (volume)(concentration)=(0.5)(2)=1 mol
stp= 22.4 dm3, 1L = 1 dm3 1mole ---> 22.4dm3 xmole ---> 45dm3 45/22.4 = 2.001 moles
number of moles = Volume (l) . Conc (mol-1l) so V = C/N
Molarity = moles of solute/Liters of solution5 M MgSO4 = moles MgSO4/1 L5 moles MgSO4=============since all is one to one in ion countMg 2+ = 5 moles--------------------------andSO4 2- = 5 moles----------------------
In Australia, there are several different sizes. The most popular being 600mL, 1L, 2L and 3L.
To convert grams per milliliter to moles per liter, you need to know the molar mass of the substance. Assuming the substance is water (H2O), its molar mass is 18.015 g/mol. Therefore, 2.5 grams per 100 milliliters is equivalent to approximately 138.6 mmol/L (millimoles per liter) for water.
To find the volume of 0.25M KCl needed to provide 0.012 moles of KCl, you can use the formula: moles = Molarity x Volume (in liters). Rearranging this formula to solve for Volume gives Volume = moles / Molarity. Plugging in the values, Volume = 0.012 moles / 0.25 mol/L = 0.048 L = 48 ml.
M means molarity, with units moles/Liter. Using this information, we use dimensional analysis: 2.5mL x (1L/1000mL) x (9mol/1L) = 0.0225mol
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.
If the gas in question was air (I assume gas does not mean gasoline in this case) there would be 1.225g/dm3 at sea level with a pressure of 1013.25 millibars and a temperature of 150C. The container in this case is 1L which is equal to 1dm3 in volume and 1.5g of air will give the container a pressure of 1013.25x1.5/1.225 The result is 1240.71mb. Claudiosanto
To find the moles of NaCl needed, first convert 140 mM to M by dividing by 1000. Then, use the formula moles = Molarity x Volume (in liters) to calculate the moles required. In this case, the calculation would be: 0.140 mol/L x 1 L = 0.140 moles of NaCl.
1000 ml = 1l 1*5=5 It will take 5 times to fill the container.
Completely depends on the volume of the container.