in a schools laboratory, students require 50.0 ml of 2.50 m h2so4 for an experiment, but the only available…

in a schools laboratory, students require 50.0 ml of 2.50 m h2so4 for an experiment, but the only available stock solution of the acid has a concentration of 18.0 m. what volume of the stock solution would they use to make the required solution? use $m_iv_i = m_fv_f$.\n0.900 ml\n1.11 ml\n6.94 ml\n7.20 ml

in a schools laboratory, students require 50.0 ml of 2.50 m h2so4 for an experiment, but the only available stock solution of the acid has a concentration of 18.0 m. what volume of the stock solution would they use to make the required solution? use $m_iv_i = m_fv_f$.\n0.900 ml\n1.11 ml\n6.94 ml\n7.20 ml

Answer

Explanation:

Step1: Identify given values

$M_i = 18.0\ M$, $M_f=2.50\ M$, $V_f = 50.0\ mL$

Step2: Rearrange the dilution formula

From $M_iV_i = M_fV_f$, we get $V_i=\frac{M_fV_f}{M_i}$

Step3: Substitute values

$V_i=\frac{2.50\ M\times50.0\ mL}{18.0\ M}$ $V_i=\frac{125}{18.0}\ mL\approx 6.94\ mL$

Answer:

C. 6.94 mL