Water, as well as any liquid, it is not always possible to weigh on scales. But to learn the mass of water happens it is necessary both on some productions, and in usual everyday situations, from calculation of tanks to the solution of a question what water supply you can take in the kayak or the rubber boat. To calculate the mass of the water or any liquid placed in any given volume first of all it is necessary to know its density.
It is required to you
- Scales
- Measured ware
- Ruler, roulette or any other measuring device
- Vessel for water transfusion
Instruction
1. If you need to calculate the mass of water in a small vessel, it can be done by means of the most usual scales. Weigh at first a vessel together with water. Then pour water in other ware. After that weigh an empty vessel. Subtract the mass of empty from the mass of a full vessel. It will also be the mass of the water which was contained in a vessel. Thus it is possible to determine weight not only liquid, but also loose substances if there is an opportunity to pour them into other ware. Such way can sometimes in addition be observed in some shops where there is no modern equipment. The seller at first weighs an empty jar or a bottle, then fills it with sour cream, weighs again, determines the weight of sour cream and only after that calculates its cost.
2. To determine the mass of water in a vessel which cannot be weighed it is necessary to know two parameters — water density (or any other liquid) and vessel volume. Density of water is 1 g/ml. Density of other liquid can be found in the special table which usually happens in reference books on chemistry.
3. If there is no measured ware in which it is possible to pour water, calculate the volume of a vessel in which it is. Volume is always equal to the work of the area of the basis on height, and with vessels a form billeting usually problems do not arise. Water volume will be equal to the area of the round basis on height filled with water in bank. Having increased density? on water V volume, you receive the mass of water m: m=?*V.