3 years ago

Transition metal with 25 electrons

Chemistry

1 answer:

Umnica [9.8K]3 years ago

8 0

Maganese is the transition metal with 25e⁻

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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

Explanation:

The equation for the reaction is;

HCl + NaOH ⇒ NaCl + H2O

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 $C_{A}$

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

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

$C_{A}=0.026092M$

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2 years ago

The branch of chemistry that looks at the release of electrical energy is called

sergij07 [2.7K]

B is the correct answer tbh

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2 years ago

The energy stored in molecular bonds is called _____.

makvit [3.9K]

Correct answer is chemical energy.

Reason:

For the chemical reactions to occur, energy is to be supplied for breaking and reorganization of bonds. This energy can be in form of heat, light, etc. Since, breaking of bonds results in chemical reactions to occur, t<span>he energy stored in molecular bonds is called Chemical energy.</span>

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3 years ago

Read 2 more answers

What is the name of the molecule shown below?

Nezavi [6.7K]

Answer:

B) Methanoic Acid

Explanation:

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Which of the following would become a negative ion before bonding?

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