Reference no: EM13213492
a) Write a procedure that would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on its rate of reaction with antacid tablets. Can only use materials listed:
- Hydrochloric acid (with a concentration of 1.0 mol/L)
- Distilled water
- Antacid tablets (calcium carbonate)
- A mortar and pestle
- Graduated cylinders (10 mL, 100 mL sizes)
- Test tubes and beakers
- Balance and measuring pan
- Hot plate (heat source)
- Thermometer
- Stopwatch or other timing device
- Ice-water bath
- Scoop
b) Design a table (giving headings only) for your observations.
c) Describe and explain three safety procedures you would have to follow when performing your procedure in a laboratory setting.
d) For the procedure that you designed in part (a), describe three different controls you used.
Calculate the molarity of a solution
: Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 in enough water to form exactly 550 mL of solution.
|
Discuss how price plays a role in short-run and long-run
: Pick a good or service. Distinguish between the short-run and the long-run production and cost function for that good or service. Discuss how price plays a role in short-run and the long-run decisions and how managers are likely to respond in each..
|
Define the vapor pressure of pure benzene at the temperature
: A solution is 40.0% by volume benzene (C6H6) in carbon tetrachloride at 20C. The vapor pressure of pure benzene at this temperature is 74.61 mmHg and its density is 0.87865 g/cm3
|
Why ethanol is a viable alternative to gasoline
: Ethanol is widely used as a component in gasoline. Ethanol can be produced from various crops, with corn as the usual production supply in the United States. General Motors promotes their flexible-fuel vehicles (FFVs) that are capable of burning e..
|
Explain effect of higher concentrations of hydrochloric acid
: Write a procedure that would follow to demonstrate the effect of increasingly higher concentrations of hydrochloric acid on its rate of reaction with antacid tablets. Can only use materials listed:
|
Explain the requirement for security arrangements
: Explain the requirement for security arrangements for assessment data - Conduct assessment of a minimum of two candidates within the VET context and against different units of competency or accredited curricula, following the relevant assessment pl..
|
How much are households paid for providing entrepreneurial
: Suppose that businesses buy a total of $100 billion of the four resources (labor, land, capital, and entrepreneurial ability) from households. If households receive $60 billion in wages, $10 billion in rent, and $20 billion in interest
|
Determine who has an absolute advantage in the home
: Brad and Angelina are married with kids. Suppose Brad's at-home productivity as a parent is $25 and Angelina's is $40. a. Who has an absolute advantage in the home How do you know b. If brad works in the labor market, he can earn a wage of $500p..
|
Classfy reaction as combination and decompositon
: classfy each reaction as cmbnation, decompositon, single replacement, double replacement, or combustion
|