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ipn [44]
4 years ago
6

Help me on question. Tap to get full screen I need get credit DM plz answer

Chemistry
1 answer:
Elena-2011 [213]4 years ago
5 0
17) 2 - temperature is a measurement
18) 4 - the unit for energy
19) 1 - all others are measurement and stuff
20) 2 
21) 4
29) 1 and 3 - energy is being added
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The Ostwald process is used commercially to produce nitric acid, which is, in turn, used in many modern chemical processes. In t
Sloan [31]

Answer:

Mass =  42.8g

Explanation:

4 NH 3 ( g ) + 5 O 2 ( g ) ⟶ 4 NO ( g ) + 6 H 2 O ( g )

Observe that every 4 mole of ammonia requires 5 moles of oxygen to obtain 4 moles of Nitrogen oxide and 6 moles of water.

Step 1: Determine the balanced chemical equation for the chemical reaction.

The balanced chemical equation is already given.

Step 2: Convert all given information into moles (through the use of molar mass as a conversion factor).

Ammonia = 63.4g × 1mol / 17.031 g = 3.7226mol

Oxygen = 63.4g × 1mol / 32g = 1.9813mol

Step 3: Calculate the mole ratio from the given information. Compare the calculated ratio to the actual ratio.

If all of the 1.9831 moles of oxygen were to be used up, there would need to be 1.9831 × 4 / 5 or 1.5865 moles of Ammonia. We have 3.72226 moles of ammonia - Far excess. Because there is an excess of Ammonia, the Oxygen amount is used to calculate the amount of the products in the reaction.

Step 4: Use the amount of limiting reactant to calculate the amount of H2O produced.

5 moles of O2  = 6 moles of H2O

1.9831 moles = x

x = (1.9831 * 6 ) / 5

x = 2.37972 moles

Mass of H2O = Molar mass * Molar mass

Mass = 2.7972 * 18

Mass =  42.8g

6 0
4 years ago
You hear a weather forecaster predict thunderstorms. Which kind of clouds would likely be in the sky? cirrus nimbostratus cumulu
almond37 [142]
Cumulonimbus - it is a dense cloud Carried by powerful air currents usually in the idea of a storm is coming.
4 0
3 years ago
Under the same conditions of pressure and temperature, how are the particles of a solid different from the particles of a liquid
erastovalidia [21]
<span> They have stronger forces of attraction between each other.</span>
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3 years ago
Does anyone know anything about displacement of reactions? If so comment pls!
MatroZZZ [7]
Metals and non-metal take part in displacement reactions.
4 0
3 years ago
Which compound is responsible for the smell that is associated with the decomposition of dead animals? acetic acid butanoic acid
vredina [299]

Answer:

cadaverine

Explanation:

Cadaverine is a chemical compound with the IUPAC name of pentane-1,5-diamine. It is a chemical compound that emits a foul odour when decomposers like bacteria act on dead animal tissues.

Cadaverine is a product of protein hydrolysis by bacteria in dead tissues, specifically when amino acid LYSINE is decarboxylated. Hence, cadaverine is the compound responsible for the terrible smell produced when a dead animal is being decomposed.

5 0
4 years ago
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