A student investigated how much solid was dissolved in sea water.
The student:
1. Measured th...
A student investigated how much solid was dissolved in sea water.
The student:
1. Measured the mass of an empty evaporating basin.
2. Measured 50 cm3 of sea water and poured it into the evaporating basin.
3. Heated the evaporating basin gently until all of the water had evaporated.
4. Measured the mass of the evaporating basin containing the solid residue.
5. Reheated the evaporating basin and solid residue.
6. Measured the mass of the evaporating basin and solid residue.
7. Repeated steps 5 and 6 until the mass was constant.
Name two different pieces of apparatus that would be suitable for measuring:
• The mass of the evaporating basin
• 50 cm3 of sea water
Equipment to measure the mass of the evaporating basin
Equipment to measure 50 cm3 of sea water
Answers: 1
Chemistry, 22.06.2019 10:00
Ahydrogen atom has 1 electron. how many bonds can hydrogen form? a) 1 b) 2 c) 3 d) 4 e) 5
Answers: 3
Chemistry, 23.06.2019 01:00
Heat energy, carbon dioxide, and water are released through which process? a. photosynthesis b. depolymerization c. digestion d. cellular respiration
Answers: 1
Chemistry, 23.06.2019 06:00
What volume of 0.500 mol/l hydrochloric acid, hci (aq) is required to react completely with 1.00 g of aluminum hydroxide, ai(oh)3 (s)?
Answers: 1
Mathematics, 17.11.2020 01:00
World Languages, 17.11.2020 01:00
Mathematics, 17.11.2020 01:00
Social Studies, 17.11.2020 01:00
Mathematics, 17.11.2020 01:00
Mathematics, 17.11.2020 01:00
Biology, 17.11.2020 01:00
Mathematics, 17.11.2020 01:00
Mathematics, 17.11.2020 01:00
Biology, 17.11.2020 01:00
History, 17.11.2020 01:00
Advanced Placement (AP), 17.11.2020 01:00