0.370 mol metal oxide = 55.45 g
<span>1 mol = 55.45/0.370 = 149.86 g </span>
<span>in 1 mol there are 3 mol O = 16 * 3 = 48 g of O </span>
<span>there is 48/149.86 * 100% O in the sample </span>
<span>the sample has 48/149.86 * 0.370 = 0.119 g O</span>
Answer:
Explanation:
Name: Tantalum
Symbol: Ta
Atomic Number: 73
Atomic Mass: 180.9479 amu
Melting Point: 2996.0 °C (3269.15 K, 5424.8 °F)
Boiling Point: 5425.0 °C (5698.15 K, 9797.0 °F)
Number of Protons/Electrons: 73
Number of Neutrons: 108
Classification: Transition Metal
Crystal Structure: Cubic
Density @ 293 K: 16.654 g/cm3
Color: gray
Energy transfer is not an efficient process.
Explanation:
There is less amount of energy in the top of the energy pyramid than at the bottom because energy transfer is not an efficient process. During the process of energy transferring, some amount is lost and some are converted to other forms of energy.
- The sun is the ultimate source of energy for all life in the solar system.
- When autotrophs takes this energy, they produce food from it.
- They use light energy from the sun to produce chemical energy in food.
- Even this conversion process waste precious amount of energy.
- As one goes up the pyramid, more energy is lost during the process of converting from one form to another.
Learn more:
laws of thermodynamics brainly.com/question/11769517
#learnwithBrainly
Answer:
Increasing the pressure on a reaction involving reacting gases increases the rate of reaction. Changing the pressure on a reaction which involves only solids or liquids has no effect on the rate.
Explanation:
