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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
1,120 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
600 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
409 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
788 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
44 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
559 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
1,382 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~
467 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
2,054 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
2,044 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
1,597 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
1,458 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
1,438 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
1,136 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
838 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
791 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
727 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
695 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
693 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
641 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
612 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.
614 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)
581 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
596 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
50 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
546 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
558 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
542 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
554 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
573 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
518 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