If, after addition of 10 ml of water, the sample or parts of it remain undissolved, the experiment has to be repeated in a 100 ml measuring cylinder with larger volumes of water.
(the sample or parts of it; remain; undissolved) (the experiment; to be repeated; L:in a 100 ml measuring cylinder with larger volumes of water)
the sample or parts of it the experiment
remain to be repeated
undissolved
L:in a 100 ml measuring cylinder with larger volumes of water