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Chemical Compounds
Page 2
Questions (484)
A compound is found to contain 15.12 % phosphorus, 6.841 % nitrogen, and 78.03 % bromine by weight.
what is the emperical formula
5 answers
asked by
Jeremy
4,354 views
a chemist needs to order Na2B4O7. One supplier offers it in an anhydrous (without water) form, while another offers it as a
4 answers
asked by
Anonymous
3,713 views
calculate the percentages by mass of the component element in sodium trioxonitrate(v)
10 answers
asked by
sam
4,470 views
How many kilograms of chlorine are in 22 kg of each of the following chlorofluorocarbons CFCs?
1.CF2Cl2 2.CFCl3 3.C2F3Cl3 4.CF3Cl
4 answers
asked by
Tiffany
2,654 views
Tin and purple Iodine combine to form an orange solid tin iodide compound. If the compound contains 0.00383 moles of Sn and
4 answers
asked by
Kirstin
2,738 views
What is wrong with or ambiguous about the phrase "four molecules of NaCl"
I really don't understand my textbook says in the back
5 answers
asked by
Kate
3,923 views
What mass of chloral hydrate (C2H3Cl3O2) would contain 1.0 grams of chlorine?
4 answers
asked by
Anonymous
3,004 views
vinegar is 5% acetic acid by mass and has a density of 1.02g/mL.what mass of acetic acid ,in grams, is present in 185 mL of
5 answers
asked by
marion
5,029 views
How many chloride ions are present in 1.7grams of magnesium chloride crystals?
6 answers
asked by
Favour
2,249 views
Cu+ S2-
what name does that make an how do you solve it? is it CuS2 copper sulfide?
4 answers
asked by
nini
3,902 views
A label on a bottle of HCL has the following information,density 1.134gm^-3 and % purity 37%. Find the mass of HCl in 1cm^3 of
6 answers
asked by
lucy
1,386 views
Write the formulas of the compounds formed by NH4+ with the following anions: CN-, ClO3-, SO42-, H2PO4-
4 answers
asked by
Kim
7,370 views
Using the compound for Ibuprofen C13H18O2 find molecules of Ibuprofen that contain 2.84 x10 23 atoms of Hydrogen
So for every 1
3 answers
asked by
TMV
823 views
Washing soda is a hydrate of sodium carbonate. Its formula is Na2CO3 X xH20. A 2.714 g sample of washing soda is heated until a
4 answers
asked by
Doris
3,954 views
Provide the name of the oxyanion of the acid HNO2(aq)
I ENTERED Carbonate ion BUT ITS WRONG
4 answers
asked by
MELISSA
5,871 views
An unknown compound contains only carbon, hydrogen, and oxygen (C?H?O?). Combustion of 6.50 of this compound produced 9.53 g of
4 answers
asked by
Dylan
2,866 views
Rust contains an iron-oxygen compound in which there are three oxygen atoms for each two iron atoms. In this compound, the iron
4 answers
asked by
sam
809 views
Calculate the percentage of water in Aluminum bromide hexahydrate, AlBr3 •6H2O.
4 answers
asked by
Chirag 491
612 views
An unknown metal, m, forms an ionic compound with the formula, M2S3. Which formula represents the compound formed by the metal
4 answers
asked by
Anonymous
3,133 views
Use the atomic weight of carbon and chlorine to determine the theoretical value of the molecular weight of CH3OH Or methanol.(
4 answers
asked by
LEREMY mcnamara
976 views
Epsom salts consist of magnesium sulfate heptahydrate. Write its formula.
a) How many atoms of oxygen are in 5.15g of Epsom
4 answers
asked by
Erica
2,520 views
Compound has a molar mass of 283.89 g.mol^-1 and the following composition:
Phosphorus: 43.64% Oxygen: 56.36% Write the molecular
4 answers
asked by
Kai
2,617 views
One handbook lists a value pKb= 9.5 for of quinoline,C9H7N , a weak base used as a preservative for anatomical specimens and to
4 answers
asked by
chips ahoy
2,484 views
Determine the volume of 200g of carbon tetrachloride,for wich specific gravity is 1.6
4 answers
asked by
KABELO
2,033 views
A sulfur oxide is 50.0% by mass sulfur. This molecular formula could be?....IS IT NOT SO2???
4 answers
asked by
Help me
3,419 views
are these names correct? i'm not sure if i did the anion/cation right..
***numbers are subscripts 1. Rb[AgF4]= Rubidium
6 answers
asked by
john
1,997 views
A 2.91 gram sample of a gaseous compound that contains only boron and hydrogen has a volume of 1.22 L at 25°C and 1.09 atm.
4 answers
asked by
songyi
1,656 views
A given sample of a xenon fluoride compound contains molecules of the type XeFn where n is some whole number. Given that 9.03 ×
3 answers
asked by
hanna
3,071 views
I have this question:
Consider the dichloropropane molecule, C3H6Cl2. Despite being a molecular compound, oxidation states can be
3 answers
asked by
Taco
939 views
Calculate the molarity of Fe(NO3)3 in Solution A.
Solution A: Mass of Fe(NO3)3 solid: 1.21g & Vol of Solution: 100mL In a
4 answers
asked by
Rosie
1,728 views
Write the formulas of the compounds formed by NH4+ with the following anions: NO3−, HCO3−, SO42−, HPO42−.
Express your
3 answers
asked by
Morgan
3,911 views
what volume of glycerine C3H8O3, with a density of 1.26 g/mL should be taken to obtain 2.50 ml of glycerine?
4 answers
asked by
Jonathan
1,180 views
The mineral cassiterite is a compound of tin and oxygen. Chemical analysis of cassiterite shows that the mass percentages of
3 answers
asked by
Jordan
1,132 views
In a chemical compound, would you expect an oxide ion to be joined with one atom of calcium or one atom of potassium? Why?
3 answers
asked by
Robert23
3,322 views
Acetylsalicylic acid (C9H8O4) is a monoprotic acid commonly known as "aspirin." A typical aspirin tablet, however, contains only
3 answers
asked by
Anonymous
2,862 views
how many C2H4 molecules are contained in 45.8 mg C2H4 when the molar mass of C2H4 is 28.05g/mol
4 answers
asked by
Thomissa
1,632 views
Using John Dalton's law of multiple proportions. There are two different compounds of sulfur and fluorine. In SF6, the mass of
4 answers
asked by
Preston
1,729 views
what is the percentage of water in
Ba(OH)2 x 8H2O?
4 answers
asked by
wilson
2,859 views
Ammonia has the formula NH3. Household ammonia is a dilute aqueous solution of NH3 . Aqueous ammonia is a base that can
7 answers
asked by
Chemistry
2,060 views
The artificial sweetener NutraSweet is a chemical called aspartame (C14H18N2O5).
(a) What is its molecular mass (in atomic mass
5 answers
asked by
Ron
1,570 views
Ammonia (NH3) is commonly used in household cleaners. If there were 5.31 × 1023 molecules of NH3, what was the mass of ammonia
3 answers
asked by
Johnny
283 views
The aluminum sulfate hydrate [Al2(SO4)3
. xH2O] contains8.10 percent Al by mass. Calculate x, that is, the number of water
3 answers
asked by
Destiny
989 views
Which of the following compounds has an atom with an unfilled valence shell of electrons?
A) H3O+ B) BF3 C) CH3OH D) NaI
4 answers
asked by
Veronica
2,384 views
LiF, BeF2, PCl3, CCl4, F2
1. which is likely to conduct electricity when aqueous: 2. which is most likely to be a gas in room
4 answers
asked by
annie
2,664 views
'The subscripts in the chemical formula for a molecular compound are not always in the lowest ratio.' Using what you know about
3 answers
asked by
anna
774 views
what is the color a mixture of sodium and potassium compounds??
What is the color a mixture of sodium and potassium compounds
3 answers
asked by
Maria
497 views
C4 H10 O2
ppm = 3.25 singlet 6H ppm = 3.45 singlet 4H
4 answers
asked by
josh
512 views
what are the names of the following compounds:
BF3 N2O4 P4S7?
3 answers
asked by
Nona
655 views
2CuSO4
what does the information above represent? (A) two molecules made of one copper atom, one sulfur atom, and four oxygen
4 answers
asked by
monica
3,509 views
Name the following compound?
FeCl3 x 6H2O
4 answers
asked by
Christina
1,627 views
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Parent Categories (10)
Chemistry
Elements
Inorganic Chemistry
Materials
Organic Chemistry
Physical Chemistry
Science and Chemistry
Science/Chemistry
Science/Substance Chemistry
Scientific notation