FTCE Chemistry 6-12 case studies
FTCE Chemistry 6-12 · Put your knowledge to work in context.
Chemistry 6–12 (003) is one of the subject-area tests listed in the Florida Teacher Certification Examinations (FTCE) program, which is administered for the Florida Department of Education and delivered through Pearson. Candidates typically take it to demonstrate the chemistry content knowledge required for teacher certification in Florida; the program publishes separate information for teachers and administrators, and the Bureau of Educator Certification determines which tests an individual applicant needs. The FTCE Chemistry 6-12 case studies are 5 cases and about 2,259 words.
1Confounded Reaction-Rate Data with a Sticking Gas Syringe
During a laboratory investigation of how concentration affects reaction rate, three student groups react 2.0 cm strips of magnesium ribbon with hydrochloric acid and collect hydrogen gas in a gas syringe. Group A uses 25.0 mL of 1.00 M HCl; Group B uses 25.0 mL of 2.00 M HCl; Group C uses 25.0 mL of 2.00 M HCl but cuts its magnesium strip into four pieces.
474 words, about 2 min2Verifying a Labeled Pure Solid That Is Actually a Mixture
A student receives a 10.0 g sample of white crystals labeled pure and is asked to verify the label by measuring melting point and solubility. The student finds that 6.8 g dissolves in 50 mL of distilled water at 25 °C, leaving 3.2 g of white residue.
452 words, about 2 min3Correcting a Coffee-Cup Calorimetry Calculation for Heat Capacity and Solution Properties
A student mixes 50.0 mL of 1.00 M HCl and 50.0 mL of 1.00 M NaOH in a coffee-cup calorimeter. Both solutions are initially at 23.8 °C.
443 words, about 2 min4Assigning C3H8O Isomers from Boiling Point and Solubility Data
A student is given three unlabeled molecular models, A, B, and C, all with molecular formula C3H8O. The models represent propan-1-ol, propan-2-ol, and methoxyethane.
459 words, about 2 min5Antacid Stoichiometry with Gas Collected over Water
A student analyzes a 2.50 g sample of an antacid that contains calcium carbonate and inert ingredients. The student adds 50.0 mL of 1.00 M HCl, collects the carbon dioxide over water, and obtains 365 mL of gas at 22.0 °C and a barometric pressure of 755 mmHg.
431 words, about 2 min