Salt dissolves better in water than baking soda. This is because salt has a higher rate of solubility than baking soda although the explanation of why this must be answered in terms of the bonds between the atoms. Very simply, salt dissolves better in water because it is a grain, a large particle, whereas baking soda has the consistency of a soft powder.
This can be very simply explained in terms of chemical bonds. Salt is held together by ionic bonding, which means that the two parts of the Sodium Chloride are charged. Whereas baking soda is held together by covalent bonds which means that the atoms are not changed. This makes it very difficult for baking soda to dissolve in water.
You can always try this experiment out for yourself. You will need to containers that are exactly the same filled with exactly the same amount of water. It is very important that the containers are the same and the same amount of water is present in each to eliminate any extraneous variables that could have an impact on the results of the experiment. Then weigh out the exact same amount of salt and baking soda. Unless you have a scale that measures to several decimal places, there may be a small amount of human error present in this part of the experiment.
You will then need to add the salt to one container of water and the baking soda to the other at the exact same time. It will be useful to get someone else to help you with this bit. As soon as the two have been added to the water, start a stopwatch and time how long it takes for them both to dissolve.
If you are being very scientific then you will want to conduct this experiment several times, making sure that the same amount of water and salt and baking soda is used. Use the times recorded to find out an average.
This can be very simply explained in terms of chemical bonds. Salt is held together by ionic bonding, which means that the two parts of the Sodium Chloride are charged. Whereas baking soda is held together by covalent bonds which means that the atoms are not changed. This makes it very difficult for baking soda to dissolve in water.
You can always try this experiment out for yourself. You will need to containers that are exactly the same filled with exactly the same amount of water. It is very important that the containers are the same and the same amount of water is present in each to eliminate any extraneous variables that could have an impact on the results of the experiment. Then weigh out the exact same amount of salt and baking soda. Unless you have a scale that measures to several decimal places, there may be a small amount of human error present in this part of the experiment.
You will then need to add the salt to one container of water and the baking soda to the other at the exact same time. It will be useful to get someone else to help you with this bit. As soon as the two have been added to the water, start a stopwatch and time how long it takes for them both to dissolve.
If you are being very scientific then you will want to conduct this experiment several times, making sure that the same amount of water and salt and baking soda is used. Use the times recorded to find out an average.