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Investigating the rate of reaction with increase in concentration
Experiment involving marble chips and hydrochloric acid
Marble chips and acid experiment
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Using the syringe method I am going to investigate the reaction between
Marble chips and hydrochloric acid by measuring the volume of carbon dioxide
formed.
Chemistry
Using the syringe method I am going to investigate the reaction
between Marble chips and hydrochloric acid by measuring the volume of
carbon dioxide formed. This reaction rate will tell me how fast or
slow a chemical reaction is and there are four things that could
affect this greatly they are-
* Concentration-An increase in concentration means there are more
particles. More particles mean that there will be more collisions.
* Surface area-When one of the reactants is solid; the reaction can
only take place at the surface of the solid. Breaking the solid
into smaller pieces will increase the surface area exposed to the
other reactant.
* Temperature-Since temperature is a measure of the motion of
particles, increasing temperature will cause the particles to move
faster, more collisions occur and the collisions are more violent.
This should increase the rate of reaction.
* Catalysts-Catalysts are substances that change the rate of a
chemical reaction without being changed in the reaction. Catalysts
are most often used to speed up the chemical reaction.
I tried to do some preliminary work but each time the reaction went
either to fast or to slow which meant in the experiment I wouldn't get
accurate results. I decided to use the same amounts of hcl acid and
...
The purpose of the experiment is to study the rate of reaction through varying of concentrations of a catalyst or temperatures with a constant pH, and through the data obtained the rate law, constants, and activation energies can be experimentally determined. The rate law determines how the speed of a reaction occurs thus allowing the study of the overall mechanism formation in reactions. In the general form of the rate law it is A + B C or r=k[A]x[B]y. The rate of reaction can be affected by the concentration such as A and B in the previous equation, order of reactions, and the rate constant with each species in an overall chemical reaction. As a result, the rate law must be determined experimentally. In general, in a multi-step reac...
First, the pros of year round schooling can include; effects on absence and burnout rates, effects on budget, more frequent breaks, and also a big effect on academic achievement. The way that year round schooling works to reduce burnout and also reduce absences is that by having more frequent breaks; students are less likely to want to skip class. This is definitely noticeable after spring break where most schools don’t have any days off until the end of the year that is usually more than 2 months straight. In other words the “April, May, June stretch”. Year round schooling will also help students with their academics as well because with the way the schedule is set up, students do not ha...
You can speed up the reaction by stirring the solution. 8. You can also change the rate of the reaction by adding a catalyst, which is something that speeds up the reaction. In my experiment I will change the temperature of the hydrochloric acid. I will not change anything else; I will keep the amount of calcium carbonate, the form of calcium carbonate, the concentration of hydrochloric acid, the surface area of the calcium carbonate and the amount of hydrochloric acid all the same.
Rate of Reaction Between Marble Chips and Hydrochloric Acid. The aim of this experiment is to find out how different variables affect the rate at which the reaction between Marble chips (CaCO ) and Hydrochloric acid (HCl) is used. There are many variables that affect the rate of this reaction such as the following. 1.
to the marble chips. I will have 30 ml of mixture and split it in to
Investigating the Rate of Reaction Between Marble Chips and Hydrochloric Acid I am investigating the rate of reaction between marble chips (calcium
The reason I believe this is that chemical reactions occur when particles of the reacting substances collide. Increasing the number of the particles increases the number of collisions per second and this increases the reaction rate. In the reaction between hydrochloric acid and calcium carbonate you can increase the number of particles in two ways. The first of these is to increase the surface area of the calcium carbonate.
For years, parents and educators have debated the advantages and disadvantages of the traditional school calendar, which has long summer vacations for all students.The longer you are away from school, the more you lose what you learned in the previous year. Studies have shown that children who know English as a second language benefit the most from year-round education because during the long summer break, they may not hear English for several months. Long summer breaks is a problem for traditional schools and the solution is to substitute traditional schools for year-round schools.
The first reason why year round schooling wouldn’t be a good idea is because of focusing for long periods of times for some students. First of all, many kids with disabilities or elementary school would have a hard time focusing that long of a time without their traditional three month summer break. Second, the more breaks students have might make it harder to focus before and after breaks. Before breaks many kids would be excited to
The aim of this experiment was to investigate the affect of the use of a catalyst and temperature on the rate of reaction while keeping all the other factors that affect the reaction rate constant.
We have no gases and solids involved, therefore it is easy to deal with solutions. Similarly, the use of a catalyst complicates things, and if used incorrectly could alter the outcome of the experiment. The theory behind this experiment is that increasing the concentration can increase the rate of the reaction by increasing the rate of molecular collisions. GRAPH I will place the reaction mixture on a paper with a black cross drawn on it. When the cross is completely obscured, the reaction will be finished.
The lottery is something everyone wants to win no matter what the prize. People buy their tickets and await their fates. Some people win the lottery and many more lose. Losing the lottery causes something inside of us to die, but it is almost impossible to quit playing. The gambling becomes an addiction. The reason why people are constantly drawn to these lotteries is because deep down, the people who play them are convinced they can win.
An investigation into how changing one variable influences the rate of reaction between marble chips and dilute Hydrochloric acid
Although people can earn a lot of money in lotteries, it is not a good idea to get involved in lotteries because there are more harmful effects than benefits. A lottery is a competition where the winner gets picked from a winning lottery ticket. In the lottery, people put down their bets and one person is picked to be the winner. The winner is determined by the winning ticket.
It couldn't be all about the money, unless the general public was extremely stupid. The odds of winning the lottery are lesser than the odds of someone being struck by lightning (1 in 649,739) or than someone being killed by a terrorist attack abroad (1 in 650,000). (7). It has been said, "If you bought 100 tickets a week your entire adult life, from the age of 18 to 75, you'd have a 1 percent chance of winning the lottery". (7) Now, a number of psychological studies have been done which indicate that the desire to play the lottery has more to do with the inability or unconcern of a person to calculate the total sum of their own money over time spent of th...