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3 years ago

15

What are some study methods to help me study better?

2 answers:

Rudiy273 years ago

6 0

Study in a quiet environment. Do Ixl for the math practice part. Look at English notes. Be able to have time management for sure. If you are to slow on a part you need to start using the guessing method because being able to almost get a question right is better than no points at all.

Kryger [21]3 years ago

3 0

Concentrate don’t get distracted and study harder

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For the galvanic (voltaic) cell fe(s) + mn²⁺(aq) ⟶ fe²⁺(aq) + mn(s) (e° = 0.77 v at 25°c), what is [fe²⁺] if [mn²⁺] = 0.050 m an

Nuetrik [128]

The concentration of Iron in the galvanic (voltaic) cell Fe(s) + Mn²⁺(aq) ⟶ Fe²⁺(aq) + Mn(s) is 0.02297 M.

<h3>What is the Nernst Equation?</h3>

The Nernst equation enables us to identify the cell potential(voltage) in presence of non-standard conditions in a galvanic cell. It can be expressed by using the formula:

$\mathbf{E_{cell} = E_o - \dfrac{0.059}{n} \times log \dfrac{[Fe^+]}{[Mn^{2+}]}}$

where;

n = Number of electrons = 2
$\mathbf{E_o}$ = Initial voltage = 0.77 V
$\mathbf{E_{cell}}$ = Cell voltage = 0.78 V
$\mathbf{[Mn^{2+}]}$ = Manganese concentration = 0.050 M

Replacing the values into the above equation, we have:

$\mathbf{0.78 = 0.77 - \dfrac{0.059}{2} \times log \dfrac{[Fe^{2+}]}{[0.050]}}$

$\mathbf{0.78 -0.77= -0.0296\times log \dfrac{[Fe^{2+}]}{[0.050]}}$

$\mathbf{log^{-1} (-0.3378) = \dfrac{[Fe^{2+}]}{[0.050]}}$

$\mathbf{Fe^{2+} = (0.4594\times 0.050 )\ M}$

$\mathbf{Fe^{2+} =0.02297 \ M }$

Learn more about using the Nernst equation here:

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2 years ago

Provides the information for cell growth and funtion

Fed [463]

Answer:

DNA

Explanation:

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3 years ago

Making changes in the dna of an organism is called.

stiks02 [169]

Making changes in the dna of organism is called mutation

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3 years ago

Which of the following groups of people would be the least affected by air pollution? a. People with asthma b. Infants c. Teenag

ryzh [129]

I would say C. Because babies lungs system is still developing, people with asthmas lungs are week and so are the elderly’s

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3 years ago

What can we do when we are bored?

Svetradugi [14.3K]

Listen to songs
Read a book
Dance
C.h.a.t with friends
Watch television
Painting
Anything of your interest (◕ᴗ◕✿)

7 0

3 years ago

Read 2 more answers