How many ml in 1 gram?

Answer 1

The general answer is that the information provided is insufficient to answer the question. The following answers explain why.

Answer 1

No direct conversion Grams and milliliters measure different things. The gram is a unit of weight (or mass), while the milliliter is a unit of volume. For example, my cat weights 2495 grams (5.5 pounds). I cannot pour my cat into a measuring cup to measure how many liters she is. Liters measure volume of fluids (usually, but we also use those same measuring cups for flour, sugar, etc. when we cook). In the metric system, one milliliter of pure water weighs one gram. (It is also worth noting that one milliliter is defined as one cubic centimeter.)

However If you know what substance you are measuring, you can use stoichiometry to find its mass. You need the molarity of the liquid and the Atomic Mass of the liquid. The molarity is moles per liter, just multiply that by the amount of substance to get moles of the substance, then multiply that by the atomic mass (in grams per mole) to get the mass in grams. If you have a substance with multiple component elements, you will need the molecular formula of the substance, and compute each component separately with their own atomic masses multiplied by their own masses(found by first taking the percentage of substance) before adding together.

Answer 2

Generally speaking, the question cannot be answered sensibly. A millilitre is a measure of volume, with dimensions [L3]. A gram is a measure of mass, with dimensions [M]. The two measure different things and basic dimensional analysis teaches that you cannot convert between measures with different dimensions such as these without additional information.

As a simple mental exercise consider a millilitre of air and a millilitre of water. They will have very different masses.

Answer 3

This depends on the density of the material or substance you are measuring, as a gram is the base metric unit for weight and the millilitre is one-thousandth of a litre, the base metric unit of volume. They are directly related though; one litre of pure water weighs one kilogram, or one ml of pure water weighs one gram.

Answer 4

It depends on what kind of powder you're talking about. 1 ml of powdered carbon, for example, weighs far less than 1 ml of powdered lead. If you were talking about a liquid or a solid and you knew the density of the material then you could calculate the mass (grams) using the formula: mass = density x volume. However, with a powder you don't know how much of its volume is the material and how much is air, so that won't work.

Answer 5

There can be no equivalence.

A gram is a measure of mass. A millilitre is a measure of volume. The two measure different things and, according to basic principles of dimensional analysis, conversion from one to the other is not valid.

If you are not convinced, consider a millilitre of air. How many grams? Next consider a millilitre of water. How many grams?

The masses of equal volumes of the two substances will clearly be very different. So there is no direct conversion between mass and volume: you need to know the density of the substance to enable you to carry out the conversion.

Some people still believe that there is a conversion in relation to pure water but that is only approximately true. Until 1964 (nearly 50 year ago!) a litre was defined as the volume of one kilogram of pure water at 4 degrees Celsius and at a pressure of 760 millimetres of Mercury. With that definition a conversion would have been possible - but only for pure water and only under those conditions. That definition of a litre was abandoned in favour of 1 litre =1000 cubic centimetres. So now, even for water, there is no simple conversion. In fact the density of pure water at a pressure of 1 bar, reaches its maximum value at 4 deg C and that value is 0.999 972 0 g/ml.

Answer 2

Mass (gram) and volume (millilitre) are not compatible; the conversion is not possible.

You need to know the density of the material because mass = volume x density.

Answer 3

This cannot be sensibly answered. A milliliter (mL or ml) is a measure of volume, grams is a measure of weight or mass.

Answer 4

It is not possible to convert from a mass unit to a volume unit without knowing the medium density.