Explanation:
Mass is the amount of matter in an object. Mass is measured in grams (1000 grams = 1 kilogram). 2. Solid- The particles of matter in a solid are tightly packed together and have a definite shape and take up a definite amount of space (volume).
for example and apple you can use a scale to find the mass. or a graduated cylinder to find the volume
Taking into account the definition of molarity, the concentration of the solution is 0.855 .
<h3>Definition of molarity</h3>
Molar concentration or molarity is a measure of the concentration of a solute in a solution and indicates the number of moles of solute that are dissolved in a given volume.
The molarity of a solution is calculated by dividing the moles of solute by the volume of the solution:
Molarity is expressed in units .
<h3>Molarity of NaCl</h3>
In this case, you have:
- number of moles of NaCl= 1.71 moles (being 58.45 g/mole the molar mass of NaCl)
- volume 2 L
Replacing in the definition of molarity:
Solving:
Molarity= 0.855
Finally, the concentration of the solution is 0.855 .
Learn more about molarity:
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Tiny crystals of all three of these compounds are use and making photographic from an explicitly a chemical reaction darkens of them to produce an image on some containing a G plus and CL minus expose light energy the chlorine Zions extra elect electron is a jack better than captured by silver ion
The mass of wood before burning does not always equal the mass of the resulting ashes after burning because some other products have been produced and lost.
<h3>Burning of wood</h3>
When wood burns, a form of chemical change takes place and the reaction is reversible.
The products of wood burning include ashes, carbon dioxide, and water vapor. However, only ashes remain after burning because carbon dioxide and water vapor both escape into the atmosphere.
The escape of some of the products of burning into the atmosphere is one of the reasons the reaction seems to negate the law of conservation of mass.
According to the law of conservation of mass, masses are conserved during reactions but can be converted to different forms. Thus, if ashes were to be the only product of the burning of wood, then the mass of the ashes formed must be equivalent to the mass of the wood.
However, due to the formation of other products that happen to always escape into the air, the mass of ashes is not always equal to the mass of the woods that burn.
More on the law of conservation of mass can be found here: brainly.com/question/28711001
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