Answer: Capillary walls main function is to exchange materials between the blood and tissue cells, While Arteries carry blood away from the heart to parts of your body like your lungs for instance, and your Veins carry blood back to your heart.
I hope this helps :)
Explanation:
Answer:
1.43 M
Explanation:
We'll begin by calculating the number of mole of the solid. This can be obtained as follow:
Mass of solid = 8.60 g
Molar mass of solid = 21.50 g/mol
Mole of solid =?
Mole = mass / molar mass
Mole of solid = 8.60 / 21.50
Mole of solid = 0.4 mole
Next, we shall convert 280 mL to litre (L). This can be obtained as follow:
1000 mL = 1 L
Therefore,
280 mL = 280 mL × 1 L / 1000 mL
280 mL = 0.28 L
Thus, 280 mL is equivalent to 0.28 L.
Finally, we shall determine the molarity of the solution. This can be obtained as illustrated below:
Mole of solid = 0.4 mole
Volume = 0.28 L
Molarity =?
Molarity = mole / Volume
Molarity = 0.4 / 0.28
Molarity = 1.43 M
Thus, the molarity of the solution is 1.43 M.
Answer:
The answer to your question is 29.4 grams of H₂SO₄
Explanation:
Data
mass of sulfuric acid
volume = 50 ml
Molarity = 6 M
Process
1.- Write the formula of Molarity
Molarity = moles / volume
-Solve for moles
moles = Molarity x volume
-Substitution
moles = 6 x 0.05
-result
moles = 0.3
2.- Calculate the molar mass of Sulfuric acid
H₂SO₄ = (1 x 2) + (32 x 1) + (16 x 4) = 2 + 32 + 64 = 98 g
3.- Calculate the mass in the solution
98 g of H₂SO₄ ---------------- 1 mol
x ----------------- 0.3 moles
x = (0.3 x 98) / 1
x = 29.4 grams of H₂SO₄
Answer:
36 moles of HF
Explanation:
Let's consider the following reaction
4 HF + SiO₂ → SiF₄ + 2 H₂O
The molar ratio of HF to SiO₂ is 4 mol HF:1 mol SiO₂. We can use a conversion fraction to find the moles of HF that will react completely with 9.0 moles of SiO₂.
9.0 mol SiO₂ × (4 mol HF / 1 mol SiO₂) = 36 mol HF
36 moles of HF will react completely with 9.0 moles of SiO₂.
Answer:
532.2546
Explanation:
if i ask how many grams Are in a mole of N2 it would be 28.0134 grams and your asking 19 so 28.0134 x 19 would be 532.2546 grams
