Answer:
I think it's fungus or plant cell
Answer:
Bacterial cell, cell with a nucleus, multicellular organism
Answer:
Which of the following best describes the make up of Saturn's rings?(1 point) solid bands of sand and dust that formed from the start of the universe solid bands of sand and dust that formed from the start of the universe material from comets that have passed through Saturn's atmosphere material from comets that have passed through Saturn's atmosphere dust, rock, and ice particles that orbit due to Saturn's gravity dust, rock, and ice particles that orbit due to Saturn's gravity debris and rocks from other planets that orbit around Saturn
A) Initial moles of NH3 = 75/1000 x 0.200 = 0.015 mol
Moles of HNO3 added = 28/1000 x 0.500 = 0.014 mol
NH3 + HNO3 => NH4+ + NO3-
Moles of NH3 left = 0.015 - 0.014 = 0.001 mol
Moles of NH4+ = 0.014 mol
Ka(NH4+) = Kw/Kb(NH3)
= 10-14/1.8 x 10-5 = 5.556 x 10-10
Henderson-Hasselbalch equation:
pH = pKa + log([NH3]/[NH4+])
= -log Ka + log(moles of NH3/moles of NH4+) since volume is the same for both
= -log(5.556 x 10-10) + log(0.0065/0.014)
= 8.14
