Answer:
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Explanation:
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Dalton's atomic theory was the first complete attempt to describe all matter in terms of atoms and their properties. Dalton based his theory on the law of conservation of mass and the law of constant composition. The first part of his theory states that all matter is made of atoms, which are indivisible.
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The answer is 9.
First convert 40 cm into metres.
40cm/100= 0.4 metres
0.4 times 9 = 3.6
PH is a measure of hydrogen(colorless, odorless) concentration of solutions. Ph is in solutions for an example like spray to clean the kitchen counter or table.These things have color and are odorless after a while.
Answer:
184.3g
Explanation:
Given parameters:
Volume of acid = 42.5L
Unknown:
Mass of acid = ?
Solution:
We have to assume that this measurement was taken at rtp;
At rtp;
1 mole of a substance occupies a volume of 22.4L
Therefore,
42.5L of H₂SO₄ will have
moles = 1.9moles
To find the mass;
Mass = number of moles x molar mass
Molar mass of H₂SO₄ = 2(1) + 32 + 4(16) = 97g/mol
Mass = 1.9 x 97 = 184.3g