Pieces are used so that the surface area does not change significantly the quantity and concentration of hydrochloric acid is such that it is almost all used up. Increasing the surface area of a substance involved in a chemical reaction exposes more of the material to the reactant, thereby speeding up the reaction process this is why chemists often use powder, filings and other forms that maximize surface area. The rate of reaction between magnesium and hydrochloric acid increases as you increase the surface area of the magnesium for example: powdered metal (greater surface area) reacts quicker with acid than strips of metal (lower surface area.
The effects of hydrochloric acid (hcl) modification of the surface area, morphology and physico-chemical properties of sayong kaolinite clay was investigated in this study sayong kaolinite clay was refluxed with different concentration of hcl (1m, 5m and 10m) at 100 °c for 4 hours and followed by calcination at 500 °c at 1 hour. Zn(s) + hcl(aq)→ zncl (aq) +h2 (g) the combination that will affect the rate of reaction is temperature, concentration and surface area (answer a) if zn(s) is broken into powder the surface area increases leading to speeding up the rate of reaction. However the acid is in excess, so it is mainly the loss of magnesium (surface area becomes smaller) that causes the change in the rate if a graph of volume (y-axis) against time (x-axis) is drawn, the slope of the graph is steepest at the beginning. Objectives: to observe and record the effect of reactant concentration on the reaction rate to observe and record the effect of surface area on the reaction rate.
Increasing the surface area of the solid increases the chances of collision taking place imagine a reaction between magnesium metal and a dilute acid like hydrochloric acid the reaction involves collision between magnesium atoms and hydrogen ions. One mole is the number of carbon atoms in exactly 12 g of carbon (602 × 10 23) mole of hydrogen chloride (hcl) dissolved in one cubic decimetre of water will contain the same number of chloride ions as one mole of sodium chloride (nacl) dissolved in one cubic decimetre of water. Each of the small cubes has a face area of 1cm x 1cm = 1cm 2 the six faces give a total surface area for each smaller cube of 6cm 2 there are eight cubes so the total surface area is 6cm 2 x 8. Planning i will use marble chips and different concentrations of hydrochloric acid and water to see how it affects the rate of reaction i will use concentrations of 50cm3 using different volumes of water and acid.
Factors affecting rates of reaction thanks to michelle craig manitoba curriculum chemistry grade 12 kinetics, topic 3-08 objectives to design short experiments to investigate and explain qualitatively using collision theory the relationship between reaction rate and temperature, concentration, catalyst, and surface area. To see if the concentration does affect the rate of a reaction i will be reacting various hcl strengths with na2s2o3 to see if the concentration affects the rate the two substances react also in this investigation i will be looking into see if there are any states the substance should be in that would affect the. So the total surface area is 8 blocks x 96 = 768 cm 2 students should be able to see that the surface area has increased considerably now cut one of the 4 cm blocks into 2 cm x 2 cm x 2 cm blocks.
The surface area is the sum of the area of all six sides of the cube the surface area of the cube can be increased by dividing the cube into smaller cubes surface area is maximized when a single large cube is crushed to fine powder. Investigating how concentration of acid affects the reaction between calcium carbonate and hydrochloric acid introduction ===== according to the collision theory temperature, concentration, surface. Factors that influence rates of reactions include change in concentration, temperature, surface area, or the addition of a catalyst this experiment will specifically investigate the effect of concentration change of the reactants upon the rate of reaction, using hydrochloric acid and magnesium strip. There are four things which affect the rate of reaction: å¸ concentration å¸ temperature å¸ surface area å¸ catalyst temperature - the temperature affects the rate of reaction because the molecules have more energy so they move about more creating a faster reaction.
- temperature, surface area, time given, amount of marble chips, amount of hydrochloric acid, same apparatus results graph this is an example of the results graph for this experiment. Determine if the reaction rate is linear over time and whether the concentration of the hcl affects linearity in the first lab, we mentioned that a rule of thumb says that an increase of 10 °c in temperature should approximately double reaction rate.
We can investigate the effect of surface area on reaction rate by looking at the reaction between marble chips and dilute hydrochloric acid an acid is a substance that forms a solution with a ph value of less than 7. An experiment to investigate the relationship between surface area and rate of reaction introduction the rate of reaction (reaction velocity) may be defined as the rate of change of concentration of a stated reactant or product. Title the effect of surface area on the rate of reaction of magnesium and hydrochloric acid research question how can the surface area affect the rate of reaction of magnesium and hydrochloric acid hypothesis in a chemical reaction, there are a few factors that affect the rate of reaction such as temperature, concentration of reactant, and. A) design a simple experiment using the reaction of magnesium ribbon and magnesium powder with hydrochloric acid that will qualitatively investigate the affect of surface area of the reactants on the rate of reaction.