A pharmacist prepares a solution of NaCl of 1 M. They then dilute it four times: first 10-fold, and then 10-fold again, and so on. Express the concentrations of the four salt solutions in index form in units of mol.dm-3 (Put the answer as 10x in each box) 10Answer; 10Answer; 10Answer; 10Answer
A pharmacist prepares a solution of NaCl of 1 M. They then dilute it four times: first 10-fold, and then 10-fold again, and so on. Express the concentrations of the four salt solutions in index form in units of mol.dm-3 (Put the answer as 10x in each box) 10Answer; 10Answer; 10Answer; 10Answer
do you know this one?im stuck
I find Moles confusing - Actually I find Chem confusing generally
A pharmacist prepares a solution of NaCl of 1 M. They then dilute it four times: first 10-fold, and then 10-fold again, and so on. Express the concentrations of the four salt solutions in index form in units of mol.dm-3 (Put the answer as 10x in each box) 10Answer; 10Answer; 10Answer; 10Answer
do you know this one?im stuck
The NaCl is initially 1 M (1 moldm^-3 -- concentration)
If you dilute something 10 fold, you're making the volume 10x bigger, hence making the concentration 10 times smaller. So one 10-fold dilution leads to:
101moldm−3=1×10−1moldm−3
If you were to 10 fold it again, you'd get a tenth of that: