Making Solutions Flashcards - GED Science

Convert liters to mL:

$\small \frac{4L}{1}=\frac{1000mL}{1L}=4000 mL$

This is the TOTAL volume of the solution. Next, determine how much NaCl to add.

$\small c_1v_1=c_2v_2$

$\small c_1=5.0M$

$\small c_2=0.125M$

$\small v_2=4000mL$

$\small (5.0M)v_1=(0.125M)(4000mL)$

$\small (5.0M)v_1=500MmL$

$\small \frac{(5.0M)v_1}{5.0M}=\frac{500MmL}{5.0M}$

$\small v_1=100mL$

Therefore, $\small 100mL$ of stock NaCl must be added. Subtract this volume from $\small 4000 mL$ to determine the amount of water used in the final solution.

$\small 4000mL-100mL=3900mL\ water$

Making Solutions - GED Science

A student is asked to make $\small 4L$ of $\small 0.125M$ NaCl solution. The student is given a stock solution of $\small 5M$ NaCl. What volumes of stock NaCl solution and pure water could be used to make the desired final solution?

Making Solutions - GED Science

A student is asked to make of NaCl solution. The student is given a stock solution of NaCl. What volumes of stock NaCl solution and pure water could be used to make the desired final solution?

Convert liters to mL: This is the TOTAL volume of the solution. Next, determine how much NaCl to add. Therefore, of stock NaCl must be added. Subtract this volume from to determine the amount of water used in the final solution.

A student is asked to make $\small 4L$ of $\small 0.125M$ NaCl solution. The student is given a stock solution of $\small 5M$ NaCl. What volumes of stock NaCl solution and pure water could be used to make the desired final solution?