Answer:
[MgCl₂] = 1.05 m
Explanation:
Molality is a type of concentration that indicates the moles of solute in 1000g of solvent.
m = mol/kg.
Our solute is MgCl₂. We convert mass to moles:
25 g . 1mol / 95.21 g = 0.262 moles.
Our solvent is water → 250 mL of H₂O
We use density to determine the mass: density = m / V
Density . V = m → 0.9975 g/mL . 250 mL = 249.3 g
We convert from g to kg = 249.3 g . 1kg/1000g = 0.2493kg
molality → 0.262 mol /0.2493kg = 1.05
<span>H2C2O4(aq) + 2OH- --> C2O4^2- + 2H2O(l)</span>
Answer:
if you want to find average speed so u need to use this formula
Average speed = 
The second and first one but if it isn’t 2 choices then 1
A switch connects with multiple devices, such as, computers, wireless access points, printers, and servers.
For example, this quote states that "Switches are key building blocks for any network. They connect multiple devices, such as computers, wireless access points, printers, and servers; on the same network within a building or campus. A switch enables connected devices to share information and talk to each other."
