How many milliliters of 7.00M HCl solution are needed to obtain 0.200mol of HCl?
mol = M x L
Substitute and solve for L, convert to mL.
mol = MxL, hence mol/M = L
.200/.700 = 0.02857 litters
0.02857 l = 28.57 ml
To answer this question, we need to use the equation:
moles = concentration x volume
Given:
Concentration of HCl solution = 7.00 M
Moles of HCl required = 0.200 mol
Rearranging the equation, we have:
volume = moles / concentration
Substituting the given values, we can calculate the volume:
volume = 0.200 mol / 7.00 M
Now, we can simplify it by performing the division:
volume ≈ 0.0286 L
Convert liters to milliliters by multiplying by 1000:
volume ≈ 28.6 mL
Therefore, approximately 28.6 milliliters of a 7.00 M HCl solution are needed to obtain 0.200 moles of HCl.