BRAND: PHYWE
CODE: 15303-77
Benefits ■ Complete experiment set: experiments easy to perform, ■ Stable storage box: durable and stackable, facilitate fast control if content is complete, ■ Experiment guides available both for students and teachers: preparation time reduced to a mínimum, ■ Curriculum-compliant: all topics are covered, ■ Developed by teachers as an ideal introduction into titration and analytical chemistry . Student set Analytical Chemistry with Cobra4 Mobile-Link Digital Set
21 Experiments:
■ Acids and their effect on indicators, ■ The effect of acids and bases on natural and synthetic indicators, ■ Identification of buffers with indicators, ■ Saline solutions and their effect on various indicators, ■ Titration of a strong acid with a strong base with the aid of a suitable indicator, ■ Titration of a strong acid with a strong base with Cobra4, ■ Titration of a strong acid with a strong base with the aid of several indicators, ■ Titration of a weak acid with a strong base with the aid of a suitable indicator, ■ Titration of a weak acid with a strong base with Cobra4, ■ Titration of a weak base with a strong acid with the aid of a suitable indicator, ■ Titration of a weak acid with a weak base with the aid of a suitable indicator, ■ Titration of a weak acid with a weak base with Cobra4, ■ Titration of a polyprotic acid with a strong base with the aid a suitable indicator, ■ Titration of a polyprotic acid with a strong with Cobra4, ■ Determining the pKa value of a weak acid with half titration, ■ Identifying cations with a flame test, ■ Anion analysis with precipitation reactions, ■ Determination of chloride by Fajans, ■ Titration of a buffer solution with a strong base with Cobra4, ■ Experimental confirmation: Henderson-Hasselbalch with Cobra4, ■ Titration of an acidic soft drink with a strong base with Cobra4
Necessary Equipment
TESS advanced Analytic Chemistry, consumables and chemicals for 10 groups / 13439-88, TESS advanced Analytical Chemistry, necessary accessoriesfor 1 group
Recommended Equipment
curricuLAB ActivityManager, site licence / 14575-62
unction and Applications
Cobra4 Mobile-Link 2
The Mobile-Link can be used in combination with all of the Cobra4 sensors. It enables measurements in the stand-alone mode without a PC.
Benefits: Suitable for all 30 Cobra4 sensors – for example in combination with Sensor-Unit Radioactivity, as Geiger Mueller counter, Including SD memory card for data storage – also suitable for field experiments outside the classroom, integrated acceleration sensor – always ready to hand, Optional integrated GPS sensor: 2.4» illuminated display, 65.536 colours – always perfectly visible. With orientation sensing, Graphic measurement data representation – Get a quick impression of the measurement course, Intuitive and robust operation via the keypad, USB connector for charging the battery and for live data transfer to the PC, In combination with Cobra4 Display-Connect usable as demonstration measuring instrument without computer
Equipment and technical data
Maximum data rate: 1 kHz (with SD memory card) / 2 kHz (USB data transfer to computer)
Power supply: Li-ion rechargeable battery, 1950 mAh (6 hours measuring time)
Integrated acceleration sensor, measurement ranges: +-2g, +-4g, +-8g
Illuminated display, 2,4», 240×320 pixel, 65.536 colours
Data storage: SD/MMC memory cards up to 32 GB
Dimensions (mm): 155x65x35
Weight: 200 g
Necessary Accessories
USB data cable, Charger, SD memory card
