All Related Questions of Empirical Formula

Q: A strikingly beautiful copper compound with the common name “blue vitriol

A strikingly beautiful copper compound with the common name “blue vitriol” has the following elemental composition: 25.45% Cu, 12.84% S, 4.036% H, 57.67% O. Determine the empirical formula of the comp...

Q: A 1.2569-g sample of a new compound has

A 1.2569-g sample of a new compound has been analyzed and found to contain the following masses of elements: carbon, 0.7238 g; hydrogen, 0.07088 g; nitrogen, 0.1407 g; oxygen, 0.3214 g. Calculate the...

Q: When 2.004 g of calcium is heated in pure nitrogen

When 2.004 g of calcium is heated in pure nitrogen gas, the sample gains 0.4670 g of nitrogen. Calculate the empirical formula of the calcium nitride formed.

Q: When 1.00 g of metallic chromium is heated with elemental

When 1.00 g of metallic chromium is heated with elemental chlorine gas, 3.045 g of a chromium chloride salt results. Calculate the empirical formula of the compound.

Q: When barium metal is heated in chlorine gas, a binary compound

When barium metal is heated in chlorine gas, a binary compound forms that consists of 65.95% Ba and 34.05% Cl by mass. Calculate the empirical formula of the compound.

Q: The “Chemistry in Focus” segment Plastic That Talks and Listens

The “Chemistry in Focus” segment Plastic That Talks and Listens! discusses polyvinylidene difluoride (PVDF). What is the empirical formula of PVDF? Note: An empirical formula is the simplest whole-num...

Q: Explain to a friend who has not yet taken a chemistry course

Explain to a friend who has not yet taken a chemistry course what is meant by the empirical formula of a compound.

Q: Give the empirical formula that corresponds to each of the following molecular

Give the empirical formula that corresponds to each of the following molecular formulas. a. sodium peroxide, Na2O2 b. terephthalic acid, C8H6O4 c. phenobarbital, C12H12N2O3 d. 1,4-dichloro-2-buten...

Q: When 3.269 g of zinc is heated in pure oxygen

When 3.269 g of zinc is heated in pure oxygen, the sample gains 0.800 g of oxygen in forming the oxide. Calculate the empirical formula of zinc oxide.

Q: When 1.00 mg of lithium metal is reacted with fluorine

When 1.00 mg of lithium metal is reacted with fluorine gas (F2), the resulting fluoride salt has a mass of 3.73 mg. Calculate the empirical formula of lithium fluoride.

Q: A compound with empirical formula C2H5O was found in a separate experiment

A compound with empirical formula C2H5O was found in a separate experiment to have a molar mass of approximately 90 g. What is the molecular formula of the compound?

Q: A compound with empirical formula CH was found by experiment to have

A compound with empirical formula CH was found by experiment to have a molar mass of approximately 78 g. What is the molecular formula of the compound?

Q: A compound with the empirical formula CH2 was found to have a

A compound with the empirical formula CH2 was found to have a molar mass of approximately 84 g. What is the molecular formula of the compound?

Q: Find the item in column 2 that best explains or completes the

Find the item in column 2 that best explains or completes the statement or question in column 1. Column 1 (1) 1 amu (2) 1008 amu (3) mass of the “average” atom of an element (4) number of carbon a...

Q: A compound was analyzed and found to contain the following percentages of

A compound was analyzed and found to contain the following percentages of elements by mass: carbon, 79.89%; hydrogen, 20.11%. a. Determine the empirical formula of the compound. b. Which of the foll...

Q: A compound was analyzed and was found to contain the following percentages

A compound was analyzed and was found to contain the following percentages of the elements by mass: barium, 89.56%; oxygen, 10.44%. Determine the empirical formula of the compound.

Q: A compound was analyzed and was found to contain the following percentages

A compound was analyzed and was found to contain the following percentages of the elements by mass: nitrogen, 11.64%; chlorine, 88.36%. Determine the empirical formula of the compound.

Q: A 0.5998-g sample of a new compound has

A 0.5998-g sample of a new compound has been analyzed and found to contain the following masses of elements: carbon, 0.2322 g; hydrogen, 0.05848 g; oxygen, 0.3091 g. Calculate the empirical formula of...

Q: A compound was analyzed and was found to contain the following percentages

A compound was analyzed and was found to contain the following percentages of the elements by mass: boron, 78.14%; hydrogen, 21.86%. Determine the empirical formula of the compound.

Q: If a 1.271-g sample of aluminum metal is

If a 1.271-g sample of aluminum metal is heated in a chlorine gas atmosphere, the mass of aluminum chloride produced is 6.280 g. Calculate the empirical formula of aluminum chloride.

Q: A compound was analyzed and was found to contain the following percentages

A compound was analyzed and was found to contain the following percentages of the elements by mass: tin, 45.56%; chlorine, 54.43%. Determine the empirical formula of the compound.

Q: If cobalt metal is mixed with excess sulfur and heated strongly,

If cobalt metal is mixed with excess sulfur and heated strongly, a sulfide is produced that contains 55.06% cobalt by mass. Calculate the empirical formula of the sulfide.

Q: If 1.25 g of aluminum metal is heated in an

If 1.25 g of aluminum metal is heated in an atmosphere of fluorine gas, 3.89 g of aluminum fluoride results. Determine the empirical formula of aluminum fluoride.

Q: If 2.50 g of aluminum metal is heated in a

If 2.50 g of aluminum metal is heated in a stream of fluorine gas, it is found that 5.28 g of fluorine will combine with the aluminum. Determine the empirical formula of the compound that results.

Q: A compound was analyzed and was found to contain the following percentages

A compound was analyzed and was found to contain the following percentages of the elements by mass: lithium, 46.46%; oxygen, 53.54%. Determine the empirical formula of the compound.

Q: A compound has the following percentage composition by mass: copper,

A compound has the following percentage composition by mass: copper, 33.88%; nitrogen, 14.94%; oxygen, 51.18%. Determine the empirical formula of the compound.

Q: When lithium metal is heated strongly in an atmosphere of pure nitrogen

When lithium metal is heated strongly in an atmosphere of pure nitrogen, the product contains 59.78% Li and 40.22% N on a mass basis. Determine the empirical formula of the compound.

Q: Tetraphenylporphyrin is a synthetic compound that resembles naturally occurring porphyrins. Porphyrins

Tetraphenylporphyrin is a synthetic compound that resembles naturally occurring porphyrins. Porphyrins are found in hemoglobin and cytochromes, which are important to biological functions in humans. T...

Q: A compound used in the nuclear industry has the following composition:

A compound used in the nuclear industry has the following composition: uranium, 67.61%; fluorine, 32.39%. Determine the empirical formula of the compound.

Q: A compound has been analyzed and has been found to have the

A compound has been analyzed and has been found to have the following composition: copper, 66.75%; phosphorus, 10.84%; oxygen, 22.41%. Determine the empirical formula of the compound.

Q: Consider a hypothetical compound composed of elements X, Y, and

Consider a hypothetical compound composed of elements X, Y, and Z with the empirical formula X2YZ3. Given that the atomic masses of X, Y, and Z are 41.2, 57.7, and 63.9, respectively, calculate the pe...

Q: When chemistry teachers prepare an exam question on determining the empirical formula

When chemistry teachers prepare an exam question on determining the empirical formula of a compound, they usually take a known compound and calculate the percent composition of the compound from the f...

Q: Rather than giving students straight percent composition data for determining the empirical

Rather than giving students straight percent composition data for determining the empirical formula of a compound (see Question 7), sometimes chemistry teachers will try to emphasize the experimental...

Q: A compound was analyzed and was found to have the following percent

A compound was analyzed and was found to have the following percent composition by mass: sodium, 43.38%; carbon, 11.33%; oxygen, 45.29%. Determine the empirical formula of the compound.

Q: Physicians, particularly pediatricians, sometimes need to know the body surface

Physicians, particularly pediatricians, sometimes need to know the body surface area of a patient. For instance, they use surface area to adjust the results of certain tests of kidney performance. Tab...