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It depends on the substance whose volume you know. > If you have a pure liquid or a solid, you use its density to calculate its mass and then divide the mass by the molar mass. If you have a solution, you multiply the molarity by the volume in litres. MOLES FROM VOLUME OF PURE LIQUID OR SOLID There are two steps: Multiply the volume by the density to get the mass. Divide the mass by the molar ...
For example: To convert 2iL to mL, multiply 2iL by the conversion factor: Thus: The " L " unit cancels out in the numerator and denominator. Solve. 2000color (white) (i)mL To determine the number of millilitres in 2 litres, we need to use a conversion factor. A conversion factor is a ratio expressed as a fraction that can be used to convert ...
Best Answer. The volume of 3 liters is 3,000 milliliters. 3,000 milliliters divided by 750 milliliters is 4, therefore there are 4 volumes of 750 ml each in 3 liters. Wiki User.
Percent concentration by mass is defined as the mass of solute divided by the total mass of the solution and multiplied by 100%. So, c% = msolute msolution ⋅ 100%, where. msolution = msolvent + msolute. There are two ways to change a solution's concentration by mass. Adding more solute - making the solution more concentrated;
Molarity is the concentration of a solution expressed as the number of moles of solute per litre of solution. Explanation: To get the molarity, you divide the moles of solute by the litres of solution. Molarity = moles of solute litres of solution. For example, a 0.25 mol/L NaOH solution contains 0.25 mol of sodium hydroxide in every litre of ...
The quick answer: 2 The longer explanation: 750ml is 750 milli-liters. 1,000ml = 1 liter. So since 750ml plus 750ml would equal 1,500ml , that would also be 1.5 liters. Hope that helps.
Certain systems, such as the SI system of units, have different units for describing the same features, such as the meter and millimeter, which are both units of distance. If a measurement is given in one unit, it can be converted into another unit describing the same property, such as length. A conversion factor can be used, such as a meter being 1000 times more than a millimeter ...
1 litre = 1000 ml. The 4 litres is: 4(1 litre = 1000 ml) 4 × 1 litre = 4 ×1000 ml. 4 litres = 4000 ml. 4000 ml Conversions in the metric system are very easy and only involve powers of 10. There are many units, but we only use some of them. Capacity involves the following units... Kl" "Hl" "Dl" "litres" "dl" "cl" "ml Each unit is ten times as ...
We can rewrite this as. V 1 n1 = V 2 n2. Equal volumes of hydrogen, oxygen, or carbon dioxide contain the same number of molecules. STP is 0 °C and 1 bar. One mole of an ideal gas occupies 22.71 L at STP. Thus, its molar volume at STP is 22.71 L. Example Problem. A 6.00 L sample at 25.0 °C and 2.00 atm contains 0.500 mol of gas.
V = n ⋅ V molar. For 2 moles of a gas at STP the volume will be. 2 moles ⋅ 22.4 L/mol = 44.8 L. For 0.5 moles the volume will be. 0.5 moles ⋅ 22.4 L/mol = 11.2 L, and so on. The molar volume of a gas is derived from the ideal gas law P V = nRT: P V = nRT → V = nRT P → V n = RT P. Let's say you were given a temperature of 355 K and a ...