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3 years ago

HELP!!! I need collision covalent level 16 ASAP!!

Chemistry

1 answer:

yan [13]3 years ago

8 0

Answer:

The data to represent average test scores for a class of 16 students includes an outlier value of 78. if the mean, including the outlier of 78, equals 84, which statement is always...

Explanation:

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In Haber’s process, 30 moles of hydrogen and 30 moles of nitrogen react to make ammonia. If the yield of the product is 50%, wha

devlian [24]

Answer:

Therewill be produced 170.6 grams NH3, there will remain 25 moles of N2, this is 700 grams

Explanation:

Step 1: Data given

Number of moles hydrogen = 30 moles

Number of moles nitrogen = 30 moles

Yield = 50 %

Molar mass of N2 = 28 g/mol

Molar mass of H2 = 2.02 g/mol

Molar mass of NH3 = 17.03 g/mol

Step 2: The balanced equation

N2 + 3H2 → 2NH3

Step 3: Calculate limiting reactant

For 1 mol of N2, we need 3 moles of H2 to produce 2 moles of NH3

Hydrogen is the limiting reactant.

The 30 moles will be completely be consumed.

N2 is in excess. There will react 30/3 =10 moles

There will remain 30 -10 = 20 moles (this in the case of a 100% yield)

In a 50 % yield, there will remain 20 + 0,5*10 = 25 moles. there will react 5 moles.

Step 4: Calculate moles of NH3

There will be produced, 30/ (3/2) = 20 moles of NH3 (In case of 100% yield)

For a 50% yield there will be produced, 10 moles of NH3

Step 5: Calculate the mass of NH3

Mass of NH3 = mol NH3 * Molar mass NH3

Mass of NH3 = 20 moles * 17.03

Mass of NH3 = 340.6 grams = theoretical yield ( 100% yield)

Step 6: Calculate actual mass

50% yield = actual mass / theoretical mass

actual mass = 0.5 * 340.6

actual mass = 170.3 grams

Step 7: The mass of nitrogen remaining

There remain 20 moles of nitrogen + 50% of 10 moles = 25 moles remain

Mass of nitrogen = 25 moles * 28 g/mol

Mass of nitrogen = 700 grams

6 0

4 years ago

Read 2 more answers

In which type of reaction can two compounds exchange ions to form two different compounds? synthesis decomposition single replac

kap26 [50]

Double replacement reaction

6 0

3 years ago

The temperature of a 500. ml sample of gas increases from 150. k to 350. k. what is the final volume of the sample of gas, if th

Masteriza [31]

To solve this we assume that the sample gas is an ideal gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant pressure and number of moles of the gas, the ratio T/V is equal to some constant. At another set of condition of temperature, the constant is still the same. Calculations are as follows:

T1 / V1 = T2 / V2

V2 = T2 x V1 / T1

V2 = 350 K x 500 mL / 150 K

V2 = 1166.67 mL

Therefore, the new volume of the system from the temperature change would be 1166.67 mL or about 1.2 L.

3 0

4 years ago

Based on periodic trends which atom has a larger ionization energy then calcium Ca?

jonny [76]

Answer:

Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton

Explanation:

Based on periodic trends, the atom that has a larger ionization energy than calcium are Gallium, Germanium, Arsenic, Selenium, Bromine and Krypton.

Across the period, the ionization energy increases from left to right.

Ionization energy is the energy required to remove the most loosely held electron within an atom.
As you go from left to right, the ionization energy increases rapidly.
The elements to the right of Ca will have a higher ionization energy compared to Ca.

8 0

3 years ago

WILL GIVE 15 POINTS FOR ANSWER WITH EXPLANATION PLEASE HELP!!!

VashaNatasha [74]

The crudos is h2o combined with c3o

6 0

3 years ago