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3 years ago

How many milliliters of a 3.0 M HCl solution are required to make 250.0 milliliters of 1.2 M HCl?

1 answer:

8 0

formulae for finding is
(Mi)(Vi) = (Mf)(Vf)
(3.0M)(x) = (500.mL/1000)(1.0M)
convert 500ml to liter

x = (0.5 moles)/(3.0 moles/liter) 
x = 0.17 Liters = 1.7 x 10^2 mL HCl

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Maksim231197 [3]

<h2>The required option d) "specific heat" is correct.</h2>

Explanation:

To raise the temperature of any substance or material of certain mass to respective temperature it requires some amount of heat.
Specific heat is the amount of heat necessary to raise the temperature of the substance of 1 gram to 1 Kelvin.
It is the amount of heat which is required to raise the temperature per unit mass to per unit temperature.
Thus, the required "option d) specific heat" is correct.

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3 years ago

Of the following substances, ________ has the highest boiling point. Of the following substances, ________ has the highest boili

kolezko [41]

Answer:

Of the following substances, PCl₃ has the highest boiling point

Explanation:

The given substances and their boiling point from online resources are;

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Borane, BH₃, (transient compound), boiling point of the dimer it forms B₂H₆ = -164.85°C

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Therefore, given that PCl₃ is a volatile liquid at room temperature, while the other substances are gases and that PCl₃ has the highest boiling point of all the substances of 76.1°C, the substance with the highest boiling point is PCl₃.

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2 years ago

Which statement best describes the relationship between observations and conclusions? A. Observations are based on Conclusions B

irga5000 [103]

Answer:

B. Conclusions are based on observations

Explanation:

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3 years ago

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3 years ago

Read 2 more answers

What is the enthalpy of fusion of water?

malfutka [58]

Answer:

d- 334 kJ/g.

Explanation:

You can detect it from the units of the different choices.

a- has the unit J/g.°C that is the unit of the specific heat capacity (c).

b- has the unit Kelvin that is the unit of temperature.

c- has the unit g/mol which is the unit of the molar mass.

d- has the unit kJ/g which is the unit of the enthalpy divided by the no. of rams that is the specific entha;py of fusion.

So, the right choice is: d- 334 kJ/g.

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3 years ago