Chemistry, 14.11.2019 04:31, Lindseycline123
Astudent constructs a coffee cup calorimeter and places 50.0 ml of water into it. after a brief period of stabilization, the temperature of the water in the calorimeter is determined to be 22.6 °c. to this is added 50.0 ml of water that was originally at a temperature of 54.5 °c. a careful plot of the temperatures recorded after this established the temperature at t0 was 30.31 °c. what is the calorimeter constant in j/°c for this calorimeter?
Answers: 2
Chemistry, 22.06.2019 23:00, jolainjoseph01998
What element has similar physical and chemical properties as boron.
Answers: 1
Chemistry, 23.06.2019 01:00, tjeffers90028
Iron (fe) reacts with copper sulfate (cuso4) to form iron (ii) sulfate. in this reaction, cu2+ gains electrons to form cu. which statement is true about this reaction? fe(s) + cuso4(aq) → feso4(aq) + cu(s)
Answers: 3
Chemistry, 23.06.2019 01:00, MrTeriffic
Imagine if during the cathode ray experiment, the size of the particles of the ray was the same as the size of the atom forming the cathode. which other model or scientific observation would have also been supported? 1. this would support dalton's postulates that proposed the atoms are indivisible because no small particles are involved. 2. this would support bohr's prediction about electrons moving in orbits having specific energy. 3. this would support bohr's prediction about electrons being randomly scattered around the nucleus in the atom. 4. this would support dalton's postulates that proposed that atoms combine in fixed whole number ratios to form compounds.
Answers: 1
Astudent constructs a coffee cup calorimeter and places 50.0 ml of water into it. after a brief peri...
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