CHEMISTRY HIGH SCHOOL

What is the molarity of 1.5 liters of an aqueous solution that contains 52 grams of lithium fluoride, LiF, (gram-formula mass =26 grams/mole)?(1) 1.3 M (3) 3.0 M
(2) 2.0 M (4) 0.75 M

Answers

Answer 1
Answer: The answer is (1) 1.3 M. The first thing you need to do is to convert the unit of gram to mole. The mol number of LiF is 52/26=2 mol. Then using the volume to calculate the molarity: molarity=2/1.5=1.3 M.

Related Questions

“The element vanadium is a solid at room temperature, and its density is 6110 kilograms per meter cubed. Its melting point is 1910 degrees Celsius.” Which correctly evaluates the statement? not reliable because opinions are presented, reliable because testable facts are presented, not reliable because it is very brief ,reliable because metric units are used
Identify whether the following is an example of qualitative or quantitative data. the taste of an apple:
When astronomers observe distant galaxies, they can tell the most of them are moving away from one another. In addition, the more distant the galaxies, the more rapidly they are likely to be moving away from each other. Can you devise a hypothesis to explain these observation?
OXIDATION IN Cl2(aq) + 2Brmc003-1.jpg(aq) mc003-2.jpg 2Clmc003-3.jpg(aq) + Br2(aq)
Which of the following compounds does NOT contain molecules?a. H2 b. NaCl c. CO2 d. H2O

Reflecting and refracting telescopes are used to gather radiation from space. Which of these statements best explains why a refracting telescope is made smaller than a reflecting telescope?A. Small lenses cause less distortion in images than big lenses.

B. Small lenses cause more distortion in images than big lenses.

C. Small telescopes gather more radiation from space than big telescopes.

D. Small telescopes produce clearer images of distant objects than big telescopes.

* PLEASE ONLY ANSWER THIS QUESTION IF YOU KNOW YOUR ANSWER IS 100% CORRECT * Thank you! :)

-Also- I have heard there is "no right answer" to this question from others, but I still need to answer it, (preferably correctly!)

Answers

I think the correct answer from the choices listed above is option A. A refracting telescope is made smaller than a reflecting telescope because small lenses cause less distortion in images than big lenses.  They are not subject to chromatic aberration because reflected light does not disperse according to wavelength.

Answer:A

Explanation:Test

Isotopes of the same element have different ____.a. positions on the periodic table
c. atomic numbers
b. chemical behavior
d. mass numbers

Answers

Answer:

d. mass numbers

Explanation:

Isotopes are atoms that have the same number of protons (atomic number) but different number of neutrons. As the definition of mass number is the sum of protons and neutron in an atom, the isotopes have different mass numbers.
The answe is D. Mass number

Is graphite conductive ?

Answers

well graphite is an electric conductive so the answer is yes :))
i hope this is helpful 
have a nice day 

a man bought two watches for Rs 2500 each.He sold one of them at 10% . profit and the other at 4% loss.what was his gain or loss percent on the whol​

Answers

Answer:

Selling price of watch A and watch B= Rs. 425

Let cost price of watch A=x

Profit =10%

∴

100

110

x=425

x=386.36

Let cost price of watch B=y

Loss =10%

∴

100

90

y=425

y=472.22

Net cost price =x+y=858.5858

Net selling price =850

Loss%=

858.58

858.5858−850

×100=1%

Explanation:

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Which of the following would be an example of applied science?

Answers

Answer:

Applied science is generally engineering, which develops technology, although there might be dialogue between basic science and applied science (research and development). Medical sciences such as medical microbiology are examples of applied sciences.

Explanation:

State the correct IUPAC chemical name for the following formula? 1) Copper chloride 2) Copper bromide 3) Copper iodide 4) Copper hydride

Answers

The correct IUPAC chemical name for the formula \(CuCl\) is "Copper(I) chloride." So, the closest option is 1) Copper chloride.

Final answer:

The correct IUPAC chemical names for Copper chloride, Copper bromide, Copper iodide, and Copper hydride are Copper(II) chloride, Copper(II) bromide, Copper(II) iodide, and Copper hydride respectively.

Explanation:

In accordance with International Union of Pure and Applied Chemistry (IUPAC) naming conventions, the chemical names for the given formulas are as follows:

  • Copper chloride is referred to as copper(II) chloride in the IUPAC naming system as it contains the copper(II) ion, which has a +2 charge.
  • Copper bromide is named copper(II) bromide, reflecting the +2 charge of the copper(II) ion.
  • Copper iodide is termed copper(II) iodide to denote the +2 charge of the copper(II) ion.
  • Copper hydride is an exception as it is simply named copper hydride in IUPAC nomenclature.

Learn more about IUPAC Naming here:

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