Answer:
m AgBr = 1.193 g
Explanation:
- AgNO3 + HBr → AgBr + HNO3
∴ V AgNO3 = 41.8 mL = 0.0418 L
∴ [ AgNO3 ] = 0.152 mol/L
∴ Mw AgBr = 187.77 g/mol
⇒ n AgNO3 = (0.0418 L)(0.152 mol/L) = 6.3536 E-3 mol AgNO3
⇒ n AgBr = (6.3536 E-3 mol AgNO3)(mol AgBr/mol AgNO3) = 6.3536 E-3 mol AgBr
⇒ m AgBr = (6.3536 E-3 mol AgBr)(187.77 g/mol) = 1.193 g AgBr
Multiply this number by avogadro's number- 6.02 times 10^23
Answer:
Decantation
Explanation:
Decantation is one of the process of separating mixture containing solid and liquid. In this process, gravity plays a very important role. The solid part of the mixture is allowed to settle down. The liquid is removed and separated in another container. It is a process that helps in the purification of the liquid. The particles that are insoluble settles down and is further subject to be separated from the mixture.
Answer:
The symbol of each element is, Ne, Na, Mg, and Al.
Explanation:
Below is the list of elements that has an atomic mass of less than 19.3 u.
The atomic mass of Neon is 20.1797 u and the atomic number is 10.
The atomic mass of Sodium is 22.989769 u and the atomic number is 11.
The atomic mass of Magnesium is 24.305 u and the atomic number is 12.
The atomic mass of Aluminium is 26.981539 u and the atomic number is 13.
Here, the symbol of each element is, Ne, Na, Mg, and Al.
Answer:
Explanation:
16. 12
17. 8
18. 9
19. 10
20. 5
21. 15
22.8
23. 24
24. 12
25. 3 i guess( some one comment for 25th pls)
26. 2
