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Inessa05 [86]
3 years ago
11

36.665m=____________cm

Chemistry
1 answer:
charle [14.2K]3 years ago
3 0

Answer:0.36665

Explanation:

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the student records the concentration of the stock solution of H2O2 to be 0.950 M. The student proceeds to prepare the reaction
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Answer:

0.0400M of KI

Explanation:

Molarity is an unit of concentration defined as the ratio between moles of solute and liters of solution.

When you add 10.0 mL of 0.10M KI and 15.0mL, total volume is:

25.0mL = <em>0.025L of solution</em>

<em />

And moles of KI are:

0.0100L × 0.10M = <em>0.00100 moles of KI</em>

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Thus, molarity is:

0.00100 moles / 0.025L = <em>0.0400M of KI</em>

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What is the oxidation number of boron in Na(B(NO3)4)
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2 years ago
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All substances freeze at the same temperature, so they all have exactly the
Anastasy [175]

Answer:

I think it would be false

Explanation:

All things have a unique freezing/melting point

6 0
3 years ago
A flask has a mass of 78.23g when empty and 593.63g when filled with water.When the same flask is filled with concentrateds ulfu
butalik [34]

Answer:

Density of concentrated H2SO4 = 1.99g/cm^3 = 1991.79Kg/m^3

Explanation:

mass of empty flask = 78.23g mass of flask filled when with water = 593.63g.

mass of flask filled when with concentrateds sulfuric acid, H2SO4 = 1026.57g

Mass of water = (mass of flask filled when with water) -

(mass of empty flask) = 593.63g - 78.23g = 515.4g

Volume of flask = volume of water = volume of concentrateds sulfuric acid, H2SO4 =

(mass of water)/ density of water) = 515.4g/1.00g/cm^3 = 515.4cm^3

The density of concentrated sulfuric acid is given by

Density of concentrated H2SO4 = (mass of H2SO4) ÷ (volume of H2SO4) = 1026.57g/515.4cm^3 = 1.99g/cm^3 = 1991.79Kg/m^3

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3 years ago
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