Answer:
6,2g of CO₂
Explanation:
Based on the reactions:
Li₂O(s) + H₂O(g) → 2LiOH(s)
LiOH(s) + CO₂(g) → LiHCO₃(s)
2,6g of Li₂O and 1,3g of H₂O are:
2,6g × ( 1mol / 29,88g) = 0,087 moles
1.3g × ( 1mol / 18,01g) = 0,072 moles
That means limiting reactant is H₂O. The moles produced of LiOH are:
0,072 moles of H₂O × ( 2mol LiOH / 1mol H₂O) =<em> 0,14 moles of LiOH</em>
Thus, the maximum CO₂ that can react are 0,14 moles of CO₂, in grams
0,14 moles CO₂ × (44,01g / 1mol) = <em>6,2g of CO₂</em>
I hope it helps!
Answer for number 1. Weight is the force of gravity. It acts in a downward direction—toward the center of the Earth.
Lift is the force that acts at a right angle to the direction of motion through the air. Lift is created by differences...
Thrust is the force that propels a flying machine in the direction of motion. Engines produce thrust.
2. For an airplane to takeoff, thrust must be greater than drag and lift must be greater than weight. To maintain level flight, lift must equal weight and thrust must equal drag. For landing, thrust must be less than drag, and lift must be less than weight.
3.When the forward forces are bigger than the opposing forces, you speed up (accelerate). As you go faster, the force of air resistance pushing back on you increases. Eventually, the forces become balanced (the forward forces are the same size as the opposing forces). Once the forces become balanced, your speed stays the same.
4.Every object on Earth has weight, a product of both gravity and mass. A Boeing 747-8 passenger airliner, for instance, has a maximum takeoff weight of 487.5 tons (442 metric tons), the force with which the weighty plane is drawn toward the Earth.
Answer:
You could observe the cell wall in all kingdoms except for the animals. That would be cells of plants, protists (algae), fungi, bacteria and achaea.
Answer:
If you have your square roots for memory, you know that the square root of 36 is equal to 6. Use a calculator to check your work. Take the square root of 36, as well as the square roots of the two integers surrounding 36, and make sure that the square root of 36 is between the square roots of the two integers.
Explanation:
Answer:
Incorrect
Explanation:
Given that,
The mass of a boulder, m = 22 kg
We need to find the weight of the student in pounds.
We know that,
1 pound = 454 g
or
1 g = (1/454 pounds)
22 kg = 0.022 grams
So,
0.022 grams = 
= 0.000048 pounds
The student says the weight is 0.048 pounds. It means he was incorrect.
