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Kamila [148]
3 years ago
13

*WILL GIVE BRAINLIEST IF SOMEONE ANSWERS THIS CORRECTLY ASAP!!!!*

Chemistry
2 answers:
My name is Ann [436]3 years ago
8 0

D. The final substance in Beaker A is a mixture and in Beaker B is a pure substance.

kvasek [131]3 years ago
3 0

Answer:

substance a is a pure substance. substance b is a mixture

Explanation:

The previous answer is incorrect

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Answer:

V_1=0.139L=139mL

Explanation:

Hello!

In this case, since the dilution processes are characterized by the decrease of the original stock solution by holding the moles constant and therefore modify the volume, for the described dilution we can write:

C_1V_1=C_2V_2

Whereas we are asked to compute the volume of the original solution; thus, we can solve for it as shown below:

V_1=\frac{C_2V_2}{C_1}=\frac{1.0M*2.5L}{18.0M}\\\\V_1=0.139L=139mL

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