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3 years ago

10

When modeling a scientific process, it is more important to organize the parts in a way that makes sense to you than to list the

m sequentially. Please select the best answer from the choices provided T F

2 answers:

AnnyKZ [126]3 years ago

7 0

The answer would actually be false. I just took the test.

WITCHER [35]3 years ago

4 0

The answer is False.

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a 20ml sample of hcl was titrated with the 0.0220 M Naoh. to reach the endpoint required 23.72 mL of the NaOh. Calculate the mol

Y_Kistochka [10]

Answer:

Molarity of HCl=0.026092M

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The equation for the reaction is;

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Using the formular, $\frac{C_{A}V_{A}}{C_{B}V_{B} }=\frac{nA}{nB}$ ..........equ1

where $C_{A}$ is the concentration of Acid,

$V_{A}$ is volume of acid

$C_{B}$ is concentration of the base

$V_{B}$ is volume of the base

nA is the number of moles of Acid

nB is number of moles of base

nA = 1, nB=1 , $V_{A}=20ml$ , $C_{B}=0.022M$ , $V_{B}=23.72mL$

we will input these values into equation1 to solve for $C_{A}$

$\frac{C_{A}*20}{0.022*23.72}=\frac{1}{1}$

$C_{A}*20=0.022*23.72$

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Objects that can bew seen only under magnification

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