<u>Answer:</u> The percent composition of in taconite is 37.6 %.
<u>Explanation:</u>
We are given:
Mass of taconite pellets = 1 ton = 907185 g (Conversion factor: 1 ton = 907185 g)
Mass of iron produced = 545 lb = 247212 g (Conversion factor: 1 lb = 453.6 g )
We know that:
Molar mass of iron = 55.85 g/mol
Molar mass of = 231.53 g/mol
1 mole of contains 3 moles of iron atom and 4 moles of oxygen atom
(3 × 55.85) = 167.55 g of iron is produced from 231.53 grams of
So, 247212 grams of iron will be produced from = of
To calculate the percentage of in taconite, we use the equation:
Mass of taconite = 907185 g
Mass of = 341611.43 g
Putting values in above equation, we get:
Hence, the percent composition of in taconite is 37.6 %.
Answer:
aims to benefit the environment is the correct answer.
Explanation:
The goal of Aims to the benefits environment is to provide everyone information, values, and skills which are required to preserve and protect the environment.
Aims to benefit the environment includes
- To decrease emissions and reduce pollution.
- To improve waste management methods.
- To reduce the consumption of natural sources.
- To minimize noise and different nuisances.
Answer: 63.6 u
Explanation:
RAM = RAM of isotope-1 X (% abundance) + RAM of isotope-2 X (% abundance) ÷ 100
63 X 70% + 65 X 30% ÷ 100 = 63.6 u
Answer:
5 molecules of O2 reacted.
Explanation:
From the question, were told that 4 molecules of NH3 reacted with O2 to form 4 molecules of NO and 6 molecules of water. To know the molecules of O2 that reacted, we must generate a balanced equation. This is illustrated below:
4NH3 + O2 —> 4NO + 6H2O
From the above equation, we have a total of 10 atoms of O2 on the right side of the equation and a total of 2 atoms of O2 on the left side. To balance the equation, put 5 in front of O2 as shown below:
4NH3 + 5O2 —> 4NO + 6H2O
Now, the equation is balanced.
From the balanced equation, 5 molecules of O2 reacted.
Answer:
98.4 kPa
Explanation:
Step 1: Given and required data
- Partial pressure of water vapor at 60°C (pH₂O): 19.9 kPa (this info is tabulated)
- Partial pressure of nitrogen (pN₂): 53.0 kPa
- Partial pressure of helium (pHe): 25.5 kPa
Step 2: Calculate the total pressure of the gaseous mixture
The total pressure of the gaseous mixture (P) os equal to the sum of the partial pressures of the gases that form it.
P = pH₂O + pN₂ + pHe
P = 19.9 kPa + 53.0 kPa + 25.5 kPa = 98.4 kPa