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4 years ago

Which of these correctly defines the pH of a solution?

Chemistry

2 answers:

andrew-mc [135]4 years ago

4 0

It is d i think cause i know that a and c are wrong and a doesnt look right

BabaBlast [244]4 years ago

3 0

Answer:

Explanation:

on Edge 2020

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The rotten smell of a decaying animal carcass is partially due to a nitrogen-containing compound called putrescine. Elemental an

guajiro [1.7K]

Answer:

$C_2H_6N$

Explanation:

Hello,

In this case, considering the given percentages, we compute the mole ratios as shown below:

$n_C=\frac{0.545}{12}=0.0454\\n_H=\frac{0.1373}{1}=0.1373\\n_N=\frac{0.3177}{14}=0.0227$

Now, by dividing all the mole ratios by the smallest ratio, we obtain the subscripts for the required empirical formula as shown below:

$C=\frac{0.0454}{0.0227} =2\\H=\frac{0.1373}{0.0227}=6\\N=\frac{0.0227}{0.0227}=1$

Therefore, the empirical formula turns out:

$C_2H_6N$

Best regards.

8 0

3 years ago

An iodine atom electron to become a ion of

Alexxandr [17]

Answer:

-1

Explanation:

4 0

3 years ago

What element has the same amount of valence electrons as neon? -KDM

Darya [45]

Answer:

Sulfur has the same amount, like all the other elements in group 16, has six valence electrons.

Explanation:

3 0

3 years ago

Read 2 more answers

2.(05.05 LC)

kati45 [8]

Answer: 5 plates

Explanation:

Because you have 5 sandwiches total

8 0

3 years ago

At a certain temperature, the K p Kp for the decomposition of H 2 S H2S is 0.746 0.746 . H 2 S ( g ) − ⇀ ↽ − H 2 ( g ) + S ( g )

Ivanshal [37]

Answer: The total pressure of container at equilibrium is 0.431 bar

Explanation:

We are given:

Pressure of hydrogen sulfide = 0.240 bar

The given chemical equation follows:

$H_2S(g)\rightleftharpoons H_2(g)+S(g)$

Initial: 0.240

At eqllm: 0.240-x x x

The expression of $K_p$ for above equation follows:

$K_p=\frac{p_{H_2}\times p_S}{p_{H_2S}}$

We are given:

$K_p=0.746$

Putting values in above expression, we get:

$0.746=\frac{x\times x}{0.240-x}\\\\x=0.191,-0.940$

Neglecting the negative value of 'x' because pressure cannot be negative.

So, the equilibrium pressure of hydrogen gas = x = 0.191 bar

The equilibrium pressure of sulfur gas = x = 0.191 bar

The equilibrium pressure of hydrogen sulfide gas = (0.240 - x) = (0.240 - 0.191) = 0.049 bar

Total pressure of the container at equilibrium = $p_{H_2}+p_{S}+p_{H_2S}$

Total pressure of the container at equilibrium = 0.191 + 0.191 + 0.049 = 0.431 bar

Hence, the total pressure of container at equilibrium is 0.431 bar

6 0

4 years ago