Answer:
Step-by-step explanation:
Equation:
Step 1: Balance both parts of the equation.
Step 2: Reduce 14 from both parts of the equation.
Step 3: Split both sides by 10, because .
Therefore, x = -1.
<span>Answer:
Since the pKb is is 4.75, the pKa is 9.25. Also, in the Henderson Hassalbalch, Molarity and moles are generally interchangeable if its the same solution.
pH = pKa + log (NH3/NH4Cl)
9.05 = 9.25 + log (Mole Ratio)
-0.2 = log (Mole Ratio)
10^-0.2 = Mole Ratio
Mole Ratio = 0.631
Now, that means for every mole of Acid, there are 0.631 moles of base. So we multiply the moles of base by the molar mass of NH3 and we multiply the moles of Acid by the molar mass of NH4Cl.
Base: 0.631 mol x 17.0 g/mol = 10.7 g NH3
Acid: 1.00 mol x 53.5 g/mol = 53.5 g NH4Cl
Now we just divide them to get the ratio.
10.7 g NH3 / 53.5 g NH4Cl = 0.200</span>
If there are 4 trucks then the first truck weighs x
then x+2tons
then x+4tons
then x+6tons = 32tons
so 4x+12=32
-12 -12
/4 /4
x=5
so plug it back in
truck 1= 5tons or 10,000lbs
truck 2= 7tons or 14,000lbs
truck 3= 9tons or 18,000lbs
<span>truck 4= 11tons or 22,000lbs</span>