<span>There are a number of ways
to express concentration of a solution. This includes molarity. Molarity is
expressed as the number of moles of solute per volume of the solution. We can calculate as follows:
Mass of KOH = 1.50 mol KOH/ L solution (2.50 L) (56.11 g/mol) = 210.41 g KOH
Therefore, the first option is the answer. </span><span />
Answer: NaCl is an ionic compound
Explanation: Sodium Chloride is formed from Na+ and Cl- ions.
It is soluble in water, it has crystalline structure, it has high melting point and
It is insulator as solid form. Water solution leads current.
C) we can see Sirius as it looked 8.8 light years ago.
Answer:
T2=540K or 267°c
Explanation:
- NZ 278°c, 0.625 atm P1/T1=P2/T2
- (27-->273=300K)
- T=?, 1.125 atm
- 0.625/300=1.125/T2
-
≠T2=
(divided both sides by 0.625)
Ans: T2=540K or 267°c How to get 267°c just subtract 540 from 273
