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2 years ago

12

The catalytic conversion of ammonia to nitric oxide is the first step in a three-step process, which ultimately results in nitri

c acid. Balance the equation for the reaction. NH3(g) + O2(g) → NO(g) + H2O(g)
a. 2, 1, 2, 1
b. 3, 2, 3, 3
c. 4, 3, 2, 6
d. 4, 5, 4, 6

1 answer:

Aleksandr-060686 [28]2 years ago

4 0

The answer is B- 3,2,3,3

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Two students are given different samples of a substance and are instructed to determine the properties of the substance.Which st

musickatia [10]

Answer:

The boiling point of the substances

Explanation:

Because Boiling point is an intensive property.

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2 years ago

Indicate which of the following criteria are important for the selection of a buffer to use in an in vitro biochemical reaction.

JulsSmile [24]

Answer:

The correct answer is: d. The pKa of the chosen buffer should be close to the optimal pH for the biochemical reaction.

Explanation:

The buffer resist or maintain the change in pH in case of Acid or basic addition to the solution. The buffer capacity should be within one or two pH units when compared to the optimal pH.

Thus it is important to select a buffer with pKa close to the optimum pH of the reaction because the ability for the buffer to maintain the pH is is great at the pH close to pKa.

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2 years ago

Now that Snape and Dumbledore has taught you the finer points of hydration calculations they have a slightly more challenging pr

Mrrafil [7]

Answer:

The value of an integer x in the hydrate is 10.

Explanation:

$Molarity=\frac{Moles}{Volume(L)}$

Molarity of the solution = 0.0366 M

Volume of the solution = 5.00 L

Moles of hydrated sodium carbonate = n

$0.0366 M=\frac{n}{5.00 L}$

$n=0.0366 M\times 5 mol=0.183 mol$

Mass of hydrated sodium carbonate = n= 52.2 g

Molar mass of hydrated sodium carbonate = 106 g/mol+x18 g/mol

$n=\frac{\text{mass of Compound}}{\text{molar mass of compound}}$

$0.183 mol=\frac{52.2 g}{106 g/mol+x\times 18 g/mol}$

$106 g/mol+x\times 18 g/mol=\frac{52.2 g}{0.183 mol}$

Solving for x, we get:

x = 9.95 ≈ 10

The value of an integer x in the hydrate is 10.

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3 years ago

How many moles of oxygen gas are needed to produce 4 moles of carbon dioxide gas?

11111nata11111 [884]

Answer: 8 moles
Explanation:
Nc2H6= 4 mol
2C2H6 + 7O2 → 4CO2+6H2O
CO2=4/2⋅4
NCO2= 8 moles
( I write this on paper so the letters and format might be confusing) sorry!!

3 0

2 years ago

Someone help me please

vesna_86 [32]

I am pretty sure its b, Ag atoms and localized electrons in silver

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2 years ago