1. .50 ml of a solution are diluted to a volume of 100 ml. The concentration of the diluted solution is 2 M. What was the concentration of the original solution? 4. .500 ml of a 5 M solution are diluted to 2 L. what is the concentration of the resulting solution?

6. Calculate the volume of concentrated reagent required to prepare the diluted solutions indicated:
A. 12 M HC1 to prepare 400. mL of 6.0 MHC1
B. 16 M HNO3 to prepare 100. mL of 2.5 M HNO3

PLS ANSWER ASAP

i would say b

explanation:

but i think i would need more information than that

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the atomic number of carbon is six, which means that a carbon atom has six protons. carbon has three naturally occurring isotopes: carbon-12, carbon-13, and carbon-14. which of these statements are true about carbon and its isotopes? select all that appl

the cold front replaces the warmer air at the ground level changing the wind to be breezy and denser.there is also an immediate drop in the temperature.