Marble Chips Experiment
Pilot
Aim: To investigate how the concentration of hydrochloric acid affect
the speed of reaction with marble chips.
Prediction: I predict that the more hydrochloric acid there is the
faster the chemical reaction. I also predict that the more dilute the
acid is (the more water there is with the acid) the slower the
chemical reaction.
Hypothesis: I predicted what I did because the more concentrated the
hydrochloric acid is the more energy there will be and so therefore
the more collisions there will be. More collisions occur when there
are more acid particles. It is the acid particles that create the
collisions and it is the collisions that lead to the reaction. In a
dilute acid or a mixture of more water than acid, there will be a
slower reaction because there are less acid particles. When there are
few acid atoms, there is less of a chance that a collision will occur
between the acid and marble chips particles.
Independent Variable: I will be changing the amount of mixture
containing the three molar hydrochloric acid and water. This is to
see how much the concentration of acid affects the speed of reaction
to the marble chips. I will have 30 ml of mixture and split it in to
three to get three results to gain an average. The concentrations
will be in the ratios of 30 acid:0 water, 25 acid:5 water, 20 acid:10
water, 15 acid:15 water and finally 10 acid : 20 water. This is an
appropriate range of results as there is not a huge gap between them.
From these ranges, it will be easy to view trends and patterns and
anomalous results.
Dependent Variable: I will be measuring the rate of reaction. I will
measure the rate by timing how long it takes for the water in the
measuring cylinder, to reach a certain point/mark on the cylinder. In
this case I will time how long it takes for the water to reach the ’50
3.) Divide your 30g of white substance into the 4 test tubes evenly. You should put 7.5g into each test tube along with the water.
Investigate how the Concentration of Sucrose Solution affects the Mass of the Potato Chip Aim To find out how the concentration of sucrose solution affects the mass of the potato chip left in the solution for one day. Water Potential: The water potential of a solution is a measure of whether it is likely to lose or gain water molecules from another solution. A dilute solution, with its high proportion of free water molecules, is said to have higher water potential than a concentrated solution, because water will flow from the dilute to the concentrated solution (from a high potential to a low potential). Pure water has the highest possible water potential because water molecules will flow from pure water to any other aqueous solution, no matter how dilute. Prediction: Osmosis is the passage of water molecules from a weaker solution to a stronger solution, though a partially permeable membrane.
neutralize 35ml of our base. Once we weighed out the KHP we then dissolved it
limestone chips, I will use 3g all the time and use 2 moles of acid.
It will be when there is too much HCl for the marble chips to dissolve
to be done. This was to find out what amount of each liquid would be
Experiment to Find the Reaction of Potato Chips in a Salt Solution. Aim: to find a reaction of potato chips in a salt solution. Hypothesis: I predict that the potato will change in mass. The difference will occur in accordance to the difference of concentration of the salt solution each potato chip is submerged in.
this is the best volume to use as it is about ¾ of a test tube full,
I am going to use a range of concentrations to enable me to get a good
Investigating The Effect Of Concentration Of Salt Solution On The Mass Of Potato Chips Aim: The aim of this investigation is to see whether the amount of salt solution affects the mass of the potato chip Hypothesis: In the solution below, water will diffuse from the dilute solution into the concentrated solution through the process of osmosis. Therefore the dilute solution level will fall and the concentrated level will rise Line Callout 2: Disapproved (is unable to go through the semi permeable membrane O Line Callout 2: Approved (is able to go through the semi permeable membrane P Salt solution Water [IMAGE] When a substance such as salt dissolves in water, the substance's molecules stick with some of the water molecules, so the concentration of the water molecules decreases. When the water molecules are the same concentration on both sides of a semi permeable membrane and salt is dissolved into one of them, osmosis will occur as shown in the diagram below.
In the story the marble champ by gary soto the character. Lupe learns that practice makes perfect. Charter learns this through doubt, practice and determination.
In the story marble champ there is a girl who name is Lupe Medrano.She taught me a life lesson and also the theme of the story.She taught me to believe in what you put your time in like in her lots of time she spent practicing marbles.She also taught me to listen to what’s around you and let that give you the belief in yourself.My theme in the story is always belief in yourself.
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
To improve the method, I would have used a machine to cut the chips to
was cut up into the smaller cubes, all 8000 of them. From there, I had