Answer: The edge of the map labeled south should be held towards the observer.
Explanation: I just took the test with this and it was right
Hey there:
Molar mass NaOH = <span>39.997 g/mol
Number of moles:
n = m / mm
n = 15.5 / 39.997
n = 0.387 moles
Volume in liters:
250.0 mL / 1000 => 0.25 L
Therefore:
M = n / V
M = 0.387 / 0.25
= 1.55 M
Answer D
hope this helps!</span>
Answer:
Molarity = 0.202 M
7.36 g/L HCl
Explanation:
KOH + HCl ----> KCl + H2O
1 mol 1 mol
0.560mol/L *0.045L x mol/L*0.125L
0.560mol/L *0.045L = x mol/L*0.125L
x = 0.560mol/L *0.045L /0.125L= 0.2016 mol/L≈ 0.202 mol/L=0.202M HCl
M(HCl) = 1.0+35.5 = 36.5 g/mol
0.2016 mol/L*36.5 g/mol ≈ 7.36 g/L HCl