Answer:
The final temperature would be 308.7 K or 35.7 °C
Explanation:
Step 1: Data given
The initial pressure = 1200 torr
The pressure is reduced to 760 torr
The initial volume = 0.650 L
The increased volume is 1.1 L
The initial temperature is 15 °C = 288 K
Step 2: Calculate the new temperature
(P1*V1)/T1 = (P2*V2)/T2
⇒with P1 = the initial pressure = 1200 torr
⇒with V1 = the initial volume = 0.650 L
⇒with T1 = initial temperature is 15 °C = 288 K
⇒with P2 = the reduced pressure = 760 torr
⇒with V2 = the increased volume = 1.1 L
⇒with T2 = the final temperature = TO BE DETERMINED
(1200 torr * 0.650 L) / 288 K = (760 torr * 1.1 L) / T2
T2 = (760 * 1.1 * 288) / (1200 * 0.650)
T2 = 308.7 K
The final temperature would be 308.7 K or 35.7 °C
Answer:
oxygen and sulfur
Explanation:
they are in the same group
Answer:
Magnetic fields can be used to make electricity
Moving a magnet around a coil of wire, or moving a coil of wire around a magnet, pushes the electrons in the wire and creates an electrical current. Electricity generators essentially convert kinetic energy (the energy of motion) into electrical energy.
Explanation:
Answer:
Based on the data in the table, which alarm produces sound waves with the greatest amplitude? Explain your answer.
this bit says based on the table but there is no table.
Answer:
Determination of lead in river waters by Atomic Absorption Spectrometry of the flame.
Explanation:
1 L of river sample was taken at an edge distance of 1.5 m and a depth of 30 cm, collected polyethylene bottles.
They were filtered through 0.45 µm depolidivinildifluoride syringe filters (pore size) and acidified with 1% v / v HNO3 until a pH less than 2 (pH = 1.85) was obtained, to reduce the interference by organic matter, and convert all metal to a free form determinable by Atomic Absorption Spectrometry (AAS) of the flame.
Flow Injection Analysis System (FIA) The flow injection analysis system (FIA) for lead preconcentration and detection in river water samples by AAS
A minicolumn of nylon and polycarbonate with teflon connections was used, whose dimensions are: 5.5 cm in length and 5.0 mm in internal diameter.
The filling material used was: TSK, consisting of azo-immobilized 8-hydroxyquinoline (bonded) to the “Toyopearl TSK” HW –75F vinyl copolymer with particle size: 60 –100 mesh.
When reading the real samples by ASA with direct fogging in the flame, absorbance values were obtained as a result of the method error interval (background noise), so that the lead concentration is below the measurement detection limit of the instrument ASA (0.1 mg / L); therefore, the use of preconcentration methods is required to improve the sensitivity of the determinations.
