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Chemical Composition
Page 2
Questions (199)
Percentage mass of sodium in sodium trioxonitrate(v) Na=23, N=14,O=16
9 answers
asked by
Precious
326 views
What is the percentage by mass of nitrogen in ammonium sulphate
3 answers
asked anonymously
32 views
Calculate the percentage composition of sulphuric acid if the atomic masses are H=1u, S=32u and 0=16u
4 answers
asked by
christina
1,345 views
a) If you have 5 dinitrogen monoxide molecules, how many nitrogen atoms do you have?
b) If I had 5 moles of dinitrogen monoxide
4 answers
asked by
Mae
1,634 views
What is the percent by mass of hydrogen in aspirin C2H8O4?
4 answers
asked by
Sierra
1,084 views
Water is composed of 11.2% hydrogen and 88.8% oxygen. what mass of water contains 50.0g of 0xygen?
2 answers
asked by
Bob
1,343 views
Naphthalene, commonly known as moth balls, is composed of 93.7% carbon and 6.3% hydrogen.
determine the empirical for
4 answers
asked by
chris
2,576 views
Water is 11.2% by mass hydrogen. How many kilograms of water would contain 5.0g of hydrogen. (using conversion factors)
3 answers
asked by
rachel
444 views
If a sample of Mg3(PO4)2, has a mass of 0.600 g, what is the mass of phosphorus in that sample?
4 answers
asked by
perry
1,934 views
Which of the following layers is defined by its chemical composition?(1 point)
Responses 1) lithosphere 2) inner core 3) mantle
3 answers
asked by
🌹Yuki🌙
180 views
What chemicals are in carbon dioxide?
3 answers
asked by
Jo
17 views
What is the concentration of nitrate ions in a solution that contains M aluminum nitrate?
4 answers
asked by
Mm
2,222 views
given that the molecular weight of mg(oh)2, magnesium hydrogen, is 58-32g, what percentage of this compound is oxygen?
4 answers
asked by
Musawar
335 views
what is the percentage of hydrogen in calcium acetate?
3 answers
asked by
edgar
817 views
What chemicals are in propane?
3 answers
asked by
Jo
22 views
What is the chemical make up of C3 H8?
3 answers
asked by
Jo
29 views
FeCo3
Calculate the mass percent composition of iron for the third one of these iron ores.
4 answers
asked by
emily chambers
2,014 views
How do you determine the percent composition by mass of a 100 g K2SO4 solution containing a 20-g solute. What is the mole
4 answers
asked by
Sofia
970 views
Determine the percent composition by mass of ammonia sulfate.
5 answers
asked by
asdfjkl;
700 views
How many atoms of aluminum are there in 125 g of aluminum foil?
4 answers
asked by
chrissy
3,594 views
A nitrogen and oxygen composition of 4,6g contains 3,2g of oxygen
a)if it is known that 46g of the gas at STD occupies 11,2dm
2 answers
asked by
Zakes
88 views
Which percent of Earth’s atmosphere does carbon dioxide gas make up?(1 point)
Responses about 78 percent less than 1 percent
2 answers
asked anonymously
114 views
write notes on chemical composition
2 answers
asked anonymously
28 views
State the law of constant proportion and give one example?
Ans-A chemical compound is always found to be made up of the same
1 answer
asked by
Karamjit singh
422 views
What is the percentage by mass of glucose in a solution which contains 18gm of glucose and 250 gm of water
2 answers
asked by
Hitesh
623 views
Determine the percentage of water of crystallization in Fe(NO3)2
1 answer
asked by
ssengendo
318 views
If you add 16g of salicyic acid to 84g of an ointment base what is the final concentration w/w of the product
2 answers
asked by
Brittany
552 views
Give one word/term for the following description in any given chemical compound,the elements always combine in the same
1 answer
asked by
Lesedi
425 views
A 1.00 g sample of naphthalene (C10H8) contains 0.562 g of hydrogen. What is the mass percent of carbon in the compound
4 answers
asked by
camm
1,007 views
A industrial raw material has the following composition by mas: iron = 28.1%; chlorine =35.7%; water of crystallization = 36.2%.
4 answers
asked by
alameen
1,274 views
A compound is found to have 56.4% potassium, 8.7% carbon, and 34.9% oxygen. What is the empirical formula?
3 answers
asked by
Angel
517 views
What's in the coke that stops an egg from bouncing ?
is it caffeine
1 answer
asked by
science
318 views
How much NaC3H5O3 (in grams) is needed to create a 1000 ml volume of Ringer’s lactate
solution?
1 answer
asked by
Jeff
416 views
It contains 15% sulphates and 30% chlorides. Is this sentence grammatically correct?
1 answer
asked by
Abirami
359 views
does a comound have a set or variable composition?
1 answer
asked by
Kaylee
326 views
Calculate the number of C atoms, H atoms, and O atoms, in 1.50 grams of glucose (C6H1206).
3 answers
asked by
Kendra
924 views
Avg PO4^3- []'s in the deep and surface ocn's are 2.11 and 0.71umolkg^-1. Calc the residence time of PO4^3- in the deep ocn
1 answer
asked by
josh
450 views
How do I find the mass % of Oxygen in sodium oxide?
1 answer
asked by
Bridget
380 views
What is the empirical formula of a hydrocarbon that contains 89,94 by mass?
5 answers
asked by
peter
545 views
I figured out this percent composition problem and I got REALLY close answers, so I wanted to check in with someone to confirm
1 answer
asked by
Jenn
399 views
How many atoms of chlorine does hydrochloric acid contain?
3 answers
asked by
Sabrina
441 views
Which of Earth's layers has the same chemical composition as the mesosphere?(1 point)
Responses outer core outer core inner core
1 answer
asked anonymously
82 views
Which of Earth's layers has the same chemical composition as the mesosphere?(1 point)
Responses lithosphere lithosphere inner
1 answer
asked by
Boo <3
79 views
Ca(PO4)2
a.3 total atoms. b.2 total atoms. c.4 total atoms. d.10 total atoms. e.5 total atoms. f.13 total atoms. g.7 total atoms.
1 answer
asked anonymously
15 views
Which of earth's layers has the same chemical composition as the mesosphere?
A. Lithosphere B. Asthenosphere C. Outer core D.
1 answer
asked by
Jsh7sbna
94 views
how much carbon is in a cup of water
15 answers
asked anonymously
46 views
Notation that represents the elements and their ratios that make up a substance.
1 answer
asked anonymously
19 views
Which of Earth's layers has the same chemical composition as the mesosphere?(1 point)
Responses outer core outer core
1 answer
asked anonymously
52 views
Calculate the percent composition of calcium acetate.
3 answers
asked by
heidi
2,758 views
Find the percentage composition of (NH4)3PO4
What i don't understand is if the mass of the element isnt given how would i
3 answers
asked by
Rose
1,573 views
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Parent Categories (16)
Atomic Structure
Chemical Compounds
Chemical Reactions
Chemistry
Earth Layers
Earth Science/Atmosphere
Earth's Layers
elements and compounds
Human Anatomy
Ingredients
Layers of the Earth
Marine Biology
Materials
Oceanography
Organic Chemistry
Water chemistry