3 years ago

Avogadro named the quantity of the mole after himself? True or False explain??

Chemistry

1 answer:

Evgesh-ka [11]3 years ago

3 0

Answer:

False

Explanation:

The term was first "officially" used by French physicist Jean Baptiste Perrin. He technically referenced the works of Avogadro

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Calculate the density of a substance with a mass of 0.0500g and volume of 6.40mL, round to the correct number of significant num

lozanna [386]

Density=mass/volume
Mass = 0.0500g
Volume = 6.40mL

0.0500g/6.40mL = 0.0078g/mL

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2 years ago

What happens when a current is applied to two electrodes immersed in pure water?

frosja888 [35]

Nothing at all happens because pure water cannot conduct electricity

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3 years ago

A 40.0 mL sample of 0.18 M HCI is titrated with 0.36 M CoHsNH2. Dctermine the pH at these points: At the beginning (before base

Whitepunk [10]

Answer:

at the beginning:

pH = 0.745

Explanation:

HCl is a strong acid, so:

HCl + H2O → H3O+ + Cl-

0.18 M 0.18 0.18.....equilibrium

before base is added:

∴ [ H3O+ ] ≅ <em>C </em>HCl = 0.18 M

⇒ pH = - Log [ H3O+ ] = - Log ( 0.18 )

⇒ pH = 0.745

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3 years ago

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Ivenika [448]

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3 years ago

The volume of a sample of <img src="https://tex.z-dn.net/?f=P_b" id="TexFormula1" title="P_b" alt="P_b" align="absmiddle" class=

murzikaleks [220]

Answer : The mass of sample is, 267.5 grams.

Explanation :

Density : It is defined as the mass of a substance contained per unit volume.

Formula used :

$Density=\frac{Mass}{Volume}$

Given:

Volume of Pb = $23.57cm^3$

Density of Pb = $11.35g/cm^3$

Now put all the given values in the above formula, we get the mass of Pb.

$11.35g/cm^3=\frac{Mass}{23.57cm^3}$

$Mass=267.5195g=267.5g$

Therefore, the mass of sample is, 267.5 grams.

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3 years ago