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Alla [95]
3 years ago
14

What's the chemistry definition of density

Chemistry
1 answer:
Paha777 [63]3 years ago
5 0
Density<span> is </span>defined<span> as the ratio between mass and volume or mass per unit volume. 
Source is google

</span>
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pshichka [43]

Answer:

not valid

Explanation:

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3 years ago
A sample of (NH4)2SO4 contains 0.750 mole. what is the mass of the sample​
steposvetlana [31]
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2 years ago
How many grams of carbon dioxide are produced from 0.98 mol of Fe3O4?
nexus9112 [7]
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4 0
3 years ago
3. In an experiment it was found that 40.0cm of 0.2M sodium hydroxide solution just neutralized 0.2g
hjlf

The relative molecular mass of acid A : 50 g/mol

<h3>Further explanation</h3>

Given

40.0 cm³(40 ml) of 0.2M sodium hydroxide

0.2g  of a dibasic acid

Required

the relative molecular mass of acid A

Solution

Titration formula

M₁V₁n₁=M₂V₂n₂

n=acid/base valence(number of H⁺/OH⁻)

NaOH ⇒ n = 1

Dibasic acid =  diprotic acid (such as H₂SO₄)⇒ n = 2

mol = M x V

Input the value in the formula :(1 = NaOH, 2=dibasic acid)

0.2 x 40 x 1 = M₂ x V₂ x 2

M₂ x V₂ = 4 mlmol = 4.10⁻³ mol ⇒ mol of Acid A

The relative molecular mass of acid A (M) :

\tt M_A=\dfrac{mass }{mol}=\dfrac{0.2~g}{4.10^{-3}}=50~g/mol

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3 years ago
I really need help on this question please help
satela [25.4K]

Answer:

Hazardous types: This type poses potential threats to the environment and human life.Battery wastes from thrown away technology.

Electronic waste or e-waste describe discarded electrical devices. Used electronics which are destined for refurbishment, resale, salvage recycling through material recovery, or disposal are also considered e-waste.

Hope this helped ! :)

6 0
2 years ago
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