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Empirical Formulas
Page 2
Questions (126)
This was reposted because the original was posted on another student's thread.
An oxide of carbon contains 27% carbon. What is
7 answers
asked by
Ms. Sue
1,118 views
A combustion analysis of a 0.00134g sample (CxHy) of a hydrocarbon yields 0.00375g of CO2 and 0.00164g of H2O. What is the
1 answer
asked by
JACI WINLOW
497 views
2. A feed ingredient gave the following percentage analysis moisture (16.0%), protein (18.0%), and fibers and minerals (66.0).
2 answers
asked by
lecille gaudiano
588 views
Write two molecular formulas that reduce to each to each of the given empirical formulas. Do not include the given empirical
2 answers
asked by
Anonymous
599 views
what is the empirical formular of the following compound: 0.142 g phosphorus with 0.436 g of fluorine.
1 answer
asked by
Nikki
408 views
empirical formulas"
p 889(153e)
4 answers
asked by
rose
263 views
• A compound is known to contain only C, H, and N.
• On combustion of a sample of 12.5 mg, 22.3 mg of CO2 and 15.2 mg of H2O
2 answers
asked by
Kevin
787 views
the emiprical formula of an organic compound is C1H2O1. If the emiprical formula mass is 30. Find the percentage composition of
3 answers
asked anonymously
42 views
Calculate the empirical formula for the following compound: potassium tartrate found in baking powder: 20.8% K, 2.7% H, 25.5% C,
2 answers
asked by
ABCD
558 views
Calculate the empirical formula of a compound containing 52.14% C, 13.12% H, and 34.73% O.
I don't understand how they got the
4 answers
asked by
kim k
1,380 views
if 11.80 g of iron reacts with 5.06 g of oxygen . Determine the empirical formula of the resulting oxide ?
2 answers
asked by
r2rou2a
745 views
A compound that contains only Fe and O is 69.9% Fe by mass. What is the empirical formula of theis compound?
Attempt:
2 answers
asked by
Amy~
466 views
A sample of black mineral hematite, an oxide of iron found in many iron ores, contains 34.97 g of iron and 15.03 g oxygen. What
3 answers
asked by
Nadia
42 views
A sample of hematite contains 34.97 g of iron and 15.03 g of oxygen. What I’d the empirical formula?
3 answers
asked by
Nadia
28 views
Citric acid, the compound responsible for the sour taste of lemons, has the following elemental composition: C, 37.51%; H,
4 answers
asked by
hannah
2,532 views
what is the molecular formula of a compound that is 54.5% C, 9.09% H, and 36.4% O. with a molecular weight of 176g/mol.
A)C8H16O4
4 answers
asked by
Justyna
2,052 views
Is this done right?
White phosphorous, P4, spontaneously bursts into flame in Oxygen gas. if 6.5 g of white phosphorous reacts
7 answers
asked by
Anya
2,041 views
A student calculates the empirical formula of a compound to be C1.5H3.5. Express this as a correct empirical formula.
3 answers
asked by
Anonymous
1,596 views
What is the empirical formula for a compound which contains 67.1 percent zinc and the rest is oxygen
5 answers
asked by
Wendy
1,457 views
a .6800g sample of carboxylic acid is burned in oxygen, producing 1.212 g of CO2 and .4991 g of H2O. determine the empirical
3 answers
asked by
Kelly
1,435 views
the percentages of carbon,hydrogen and oxygen in vitamin c were determined by burning a sample weighing 2.00mg,the masses of
4 answers
asked by
yankoua
1,135 views
Complete combustion of 4.20 g of a hydrocarbon produced 13.4 g of CO2 and 4.81 g of H2O. What is the empirical formula for the
2 answers
asked by
Alex
1,011 views
Please check the following.
1. What compound is sodium sulfite? My answer:Na2SO3 2. Which element is a noble gas? a. N2 b. Cl2 c.
1 answer
asked by
Anonymous
933 views
A mass of a copper oxide weighed 10.00grams. The reaction was run and the amount of just copper obtained was 8.88grams. What is
2 answers
asked by
Samantha
835 views
What is the empirical formula of a compound that is 14g calcium, 11g oxygen, and 0.7g hydrogen?
A. CaOH B. Ca(OH)2 C. Ca2OH2 D.
2 answers
asked by
Amy
800 views
3. Find the empirical formula for a compound that consists of aluminum and chlorine in which the aluminum is 20.2 % by mass.
4. A
2 answers
asked by
jhong
827 views
Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition.
vani
2 answers
asked by
Mely
803 views
4.12 grams of Zinc are placed in a crucible with 3.00 grams (excess) of Sulfur. when reaction is complete the product mass is
2 answers
asked by
Jakob
790 views
A sample of phosphorus of mass 3.654 g reacts with dichlorine to form 16.20 g of a molecular compound. What is the empirical
6 answers
asked by
Roger
751 views
How would you find the empirical formula for this... a substance was found by analysis to contain 20% by mass calcium and 80% by
2 answers
asked by
Jamie Marie
726 views
Calculate the empirical formula for each of the following natural flavors based on their elemental mass percent composition.
nitr
2 answers
asked by
Mely
694 views
How do I find the empirical formula for aluminium selenide?
You have to have some data, such as masses, or percent: Empirical
1 answer
asked by
Mac
692 views
A sample of a substance (containing only C, H, and N) is burned in oxygen.
7.961 g of CO2, 1.164 g of H2O and 1.551 g of NO are
2 answers
asked by
Tiffany
640 views
Heating a 2.00g sample of magnesium metal with an excess of pure nitrogen gas produce 2.77g of a compound containing only
2 answers
asked by
Anonymous
650 views
Determine the empirical formula of a compound found to contain the following 52.11% carbon, 13.14% hydrogen, and 34.75% oxygen
2 answers
asked by
lynda smith
611 views
A compound was found to contain copper and chlorine. The mass of the compound was 351 mg. The amount of copper in the sample was
2 answers
asked by
Sandy M.
611 views
empirical formula of a barium hydroxide hydrate if a sample consists of 3.70 g of barium hydroxide and 2.64 g water.
2 answers
asked by
Farrukh Khawaja
613 views
A compound Y containg C, H and O only was burnt in a strem of pure oxygen.The carbon(iv)oxide and water produced were collected
2 answers
asked by
KC(king of casino)
579 views
0.702g of arsenic
an oxide of arsenic mass 0.927g how do i calculate the mass of oxygen that combines with 1 mole of arsenic
1 answer
asked by
minnie
593 views
a compound containing only carbon and hydrogen consists of 362 g of C and 30.1 g of H. what is the empirical formula of the
2 answers
asked by
Lynn
544 views
A sample of a plant alkaloid, containing ONLY carbon, nitrogen and hydrogen, is combusted in air to produce 210.6 g CO2, 152.1 g
1 answer
asked anonymously
49 views
A sample of liquid consisting of only C,H and O and having a mass of 0.5438g was burned in pure oxygen and 1.039g of CO2 and
2 answers
asked by
rose
545 views
If the relative atomic mass of CH2O is calculated it's empirical formula (C=12,H=1,O=16)
2 answers
asked by
Daniels venelope
557 views
What is the ratio of atoms of CL over atoms of Zn?
and what is the empirical formula of zinc chloride? In ZnCl2, there are two
1 answer
asked by
Steve
559 views
8.09% carbon, 0.34% hydrogen, 10.78% oxygen, and 80.78% bromine
its similar to the last one i posted empirical formulas
2 answers
asked by
tula
541 views
You are going to be provided with 1 0.50 g sample of magnesium oxide. Treatment of this sample with hydrochloric acid (HCl) will
3 answers
asked by
JC
553 views
WHAT IS THE EMPIRICAL FORMULA FOR A COMPOUND THAT HAS 200GRAMS. 97.30 GRAMS OF CARBON, 16.22 GRAMS OF HYDROGEN, AND THE REST IS
2 answers
asked by
BILL
534 views
What is the empirical formula of a compound that has a carbon-to-hydrogen ratio of 2 to 6?
Is it CH3?
5 answers
asked by
danny123
570 views
An ammonium salt of an alkanoic acid gain 60.5% of carbon 6.5% of hydrogen gas. If 0.309g of the salt yields 0.0313g of
2 answers
asked by
Angel
536 views
find the empirical formula for a compound that consists of aluminum and chlorine in which the aluminum is 20.2% by mass
2 answers
asked by
joy
516 views
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Parent Categories (19)
Atomic Structure
Basic Concepts
Chemical Compounds
Chemical Formulas
Chemical Formulas and Composition
Chemical Formulas or Compound Analysis
Chemical Reactions
Chemical Reactions and Stoichiometry
Chemistry
Combustion Reactions
Compound Formulas
Compounds and Elements
elements and compounds
Formulas
Ionic compounds
Molecular Formulas
Molecules and Formulas
Organic Chemistry
Stoichiometry