Answer:Given data from the lab collated as 291.15k for Temperature, 0.061L for volume and 1atm pressure.
Initial hydrogen peroxide solution is 5ml with a weigh % concentration 6.6%
n=0.0025moles of oxygen AND 0.0097moles of H2O2 were present
Explanation:
2H2O2(aq)-----2H2O(I)+2O2(g)
Recall the idea gas equation
PV=nRT
n=PV/RT---(1) solving equation (1) using the data in the answer section above.
n=0.0025moles of oxygen is produced.
Recall that for every 100ml of solution you get 6.6g of hydrogen peroxide.
Your 5ml will thus contain
5ml*6.6g H2O2/100ml=0.33g
no of moles if H2O2=0.33/34.015=0.0097moles
Answer:
Filtration, the process in which solid particles in a liquid or gaseous fluid are removed by the use of a filter medium that permits the fluid to pass through but retains the solid particles. Either the clarified fluid or the solid particles removed from the fluid may be the desired product.
Crystallization, or crystallisation, is the process of atoms or molecules arranging into a well-defined, rigid crystal lattice in order to minimize their energetic state. The smallest entity of crystal lattice is called a unit cell, which can accept atoms or molecules to grow a macroscopic
crystal.
BRAINLIEST PLEASE, I NEED IT
Tin
Chemical Element
Tin is a chemical element with the symbol Sn and atomic number 50. It is a main group metal in group 14 of the periodic table. Wikipedia
Symbol: Sn
Electron configuration: [Kr] 4d105s25p2
Atomic number: 50
Melting point: 449.5°F (231.9°C)
Atomic mass: 118.71 u
Boiling point: 4,717°F (2,603°C)
Electrons per shell: 2, 8, 18, 18, 4
Answer:
a tough, light, flexible synthetic resin made by polymerizing ethylene, chiefly used for plastic bags, food containers, and other packaging.
Explanation:
Vascular tissue transports water, minerals, and sugars to different parts of the plant. Vascular tissue is made of two specialized conducting tissues: xylem and phloem. Xylem tissue transports water and nutrients from the roots to different parts of the plant, and also plays a role in structural support in the stem.
