Answer:
3040 mmHg
Explanation:
Here
we have to convert 4.00 atm to mmHg
As we know that
The number of atm in 1 mmHg is 0.0013157895567935
Now there is 4.00 atm So, in mmHg it would be
And, according to this, the working is given below:
= 4 ÷ 0.0013157895567935
= 3,039.99
= 3040 mmHg
Hence, the last option is correct
And, the same is relevant and considered too
9086.3J
Explanation:
Given parameters:
Mass of water = 18.5g
Initial temperature of water = 35°C
Finial temperature = -5°C
Unknown:
Amount of heat given off = ?
Solution:
In converting the water to ice, the water goes through these processes:
35°C to freezing point at 0°C = mcΔT
0°C of water to 0°C of ice = mL
0°C of ice to -5°C = mcΔT
The heat given off;
H = mc₁ΔT + mL + mc₂ΔT
m is the mass of water
c₁ is the specific heat capacity of water = 4.2J/g °C
c₂ is the specific heat capacity of ice = 2.03J/g °C
L is the latent heat of fusion = 334J/g
ΔT = T₂ - T₁ = temperature change
H = 18.5 x 4.2 + (0-(-35)) + (18.5 x 334) + (18.5 x 2.03 x (-5 - (0))
H = 2719.5J + 6179J + 187.8J = 9086.3J
learn more:
Specific heat brainly.com/question/7210400
#learnwithBrainly
OK so the answer I believe you are looking for is sand or silt because it allows the water to move through the soil and drain quickly.
What we can actually do is to find the number of moles of Ca.
moles Ca = 0.72 g / (40.08 g/mol) = 0.018 mol
From the given choices, we can all see that there are 1 mol of compound
per 1 mole of Ca. Therefore the actual moles of compound is also 0.018 mol.
From this, calculate the mass and the answer is the one which will give 2 g.
Answer:
D. CaCl2
Answer:
Crystal / Crystalline Structure
Explanation:
These structures contain particles in a regular pattern, and we call them crystals.
Hope this helped!
