Answer:
i need brainliest
Explanation:
To mark the upper fixed point, the thermometer is placed in a hypsometer containing water as shown in the figure. The bulb of the thermometer should be outside the water. When the mercury level becomes stationary at a temperature of steam, the level is marked, which represents the upper fixed point of the thermometer.
Answer:
Molarity = 0.4 mol.L⁻¹
Solution:
Molarity is given as,
Molarity = Moles / Volume of Solution
Also,
Moles = Mass / M.mass
So,
Molarity = Mass / (M.mass × Volume of Solution)
Data Given,
Mass = 89 g
M.mass of Na₂SO₄ = 142 g.mol⁻¹
Volume = 1.5 L
Putting Values,
Molarity = 85 g ÷ (142 g.mol⁻¹ × 1.5 L)
Molarity = 0.399 ≈ 0.4 mol.L⁻¹
Answer:
It dissolves into the water
Na₂SO₄ + H₂O → 2Na₊_{aq} + SO₄²-_{aq}
Hope this helps :)
Have a great day !
5INGH
Explanation:
Some fuels are used to better suit vehicles, while other types of fuels are used to reduce carbon emmision, e.t.c.
Not 100% sure, but I think it’s Water, hope this helps