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Stoichiometry
Page 7
Questions (11,774)
A 0.4647-g sample of a compound known to contain only carbon, hydrogen, and oxygen was burned in oxygen to yield 0.8635 g of CO2
5 answers
asked by
shane
13,018 views
Refer to the following equation: 4NH3 + 7O2= 4NO2 +6HO, How many moles of ammonia would be required to produce 11.9 mol of
5 answers
asked by
Jessica
7,757 views
A 25.0-mL sample of H2SO4 is neutralized with NaOH. What is the concentration of the H2SO4
if 35.0 mL of 0.150 M NaOH are
6 answers
asked by
tiya
5,822 views
if 8.6L of H2 reacted with 4.3L of O2 at STP, what is the volume of gaseous water collected (assuming none of it condenses)?
5 answers
asked by
Anonymous
7,257 views
A CaCl2 solution is given to increase blood levels of calcium. If a patient receives 5.0 mL of a 5.0 % (m/v) CaCl2 solution, how
5 answers
asked by
Ava
7,341 views
1. How many moles of ammonia NH3 are produced when 0.45 moles of nitrogen N2 reacts?
N2 + 3H2 yields 2NH3 2. How many mililiters
4 answers
asked by
Melanie
4,116 views
A mixture of 5.00 g of sodium carbonate, Na2CO3 and sodium hydrogen carbonate, NaHCO3 is heated. The loss in mass is 0.31 g.
5 answers
asked by
Anonymous
2,560 views
How many moles of solute particles are present in 1 L of aqueous 0.08 M ethanol (C2H5OH)?
4 answers
asked by
Blair
3,642 views
if an excess of nitrogen is reacted with 3.41 g of hydrogen, how many grams of ammonia can be produced?
5 answers
asked by
Anonymous
4,379 views
A sample of magnesium with a mass of 1.00 g is burned in oxygen to produce an oxide with a mass of 1.66 g. What is the empirical
4 answers
asked by
Doris
2,041 views
Thanks for the help earlier
My question Silicon tetrachloride (SiCl4) can be prepared by heating Si in chlorine gas: Si + 2Cl2
6 answers
asked by
Kate
7,979 views
Heres the question:
"In determining the simplest formula of lead sulfide, 2.46 grams of lead are placed in a crucible with 2.00
5 answers
asked by
Tran
3,461 views
Using the equation:
2C2H6 + 7O2--> 4CO2 + 6H20 How may moles of 02 are needed to react with 4.0 mol of C2H6? I think the answer
6 answers
asked by
Eric
3,446 views
the number of moles in 12.04x10^23 molecules of Oxygen
5 answers
asked by
kevin
2,194 views
Calculate the molar solubility of Cr(OH)3 in a solution with a PH of 11.6 knowing that the Ksp(Cr(OH)3)=6.7×10^-31.
4 answers
asked by
Last
8,285 views
What is the mass of 50.0 L of O2(g) at STP?
O is 16g/mole, so O2 is 32g/mole. 50/32 = 1.5625 moles. 1 mole of any gas at stp is
7 answers
asked by
Shine bright shine far
7,593 views
How many molecules of BrF2 form when 384g Br2 react with excess F2?
equation: Br2 + 5F2 ---> 2BrF5 I really just need the
5 answers
asked by
Ana
2,626 views
A 25.0 mL sample of 0.100 M pyridine (Kb for pyridine is 1.7 ✕ 10-9) is titrated with 0.100 M HCl solution. Calculate the pH
5 answers
asked by
joe
2,571 views
Magnetite, an iron ore with formula Fe3O4, can be reduced by treatment with hydrogen to yield iron metal and water vapor.
(a)
6 answers
asked by
Marie
4,957 views
What mass of benzoyl peroxide is present in 150g of an acne solution with a 5.0% M/M benzoyl peroxide concentration?
A) 7.5g B)
4 answers
asked by
Rachel
1,644 views
Consider the reaction of solid aluminum iodide and potassium metal to form solid potassium iodide and aluminum metal.
The
9 answers
asked by
anonymous
4,348 views
How many moles of C9H8O4 are in a 0.700 g tablet of aspirin?
n^C9H8O4 =?????? How many molecules of C9H8O4 are in this tablet?
4 answers
asked by
Sky
3,164 views
Calculate the minimum number of moles of Pb(NO3)2 required to start precipitation in 50.0mL of 0.15M ZnI2
7 answers
asked by
May
2,747 views
If we take 2.2 grams of CO2, 6.02 X 1021 atomes of nitrogen and 0.03 gram atoms of sulphar , then the molar ratio of C, N, and O
10 answers
asked by
Shahab Mirza
5,114 views
The problem ask what is the mass of iron(iii) chloride contains 2.35 x 10^23 chloride ions.
I understand the molar mass is 162.20
5 answers
asked by
Shadow
5,511 views
Calculate the molarity of a phosphoric acid(H3PO3)solution that is 84% by mass phosphoric acid and has a density of 1.87g/mL.?
5 answers
asked by
Lahna
3,959 views
Calculate the mass of each product formed when 43.82g of diborane (B2H6) reacts with excess water:
B2H6(g) + H2O(l)--> H3BO3(s) +
6 answers
asked by
TeeJay
4,329 views
I am really having trouble answering this question, can someone help?
A binary compound between an unknown element E and hydrogen
4 answers
asked by
Melissa
3,453 views
predict whether or not a precipitate will form if you mix 75ml of a NaOH solution with pOH = 2.58 with 125ml of a 0.018M MgCl2
4 answers
asked by
glenn
3,174 views
400 cm3 of 0.5mol/dm3 hydrochloric acid was reacted with 5g of magnesium oxide. Calculate the mass of reacted oxide? Show the
5 answers
asked by
vigor
1,006 views
How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution?
Calculate the volume of
4 answers
asked by
Donna
1,963 views
How many grams of CO are needed to react with an excess of Fe2O3 to produce 209.7gFe? Fe2O3(s) + 3CO(g) => 3CO2(g) + 2Fe(s)
6 answers
asked by
Shelly
9,008 views
A solution of trioxonitrate (V) acid contained 0.67g in 100cm3. 31.0cm3 of this solution
neutralized 25cm3 of a sodium
5 answers
asked by
BROOKLYN
1,974 views
Determine the number of moles of N2 that are required to produce 12 mol of NH3 using the equation, N2 + 3H2 --> 2NH3.
12 mol NH3
4 answers
asked by
Beth
1,807 views
How long would it take for 2.2 x 10^-4 mol H2 to effuse through the same orifice as the 2.2x 10^-4 mol N2? (It takes 105s for N2
5 answers
asked by
Nikki
1,316 views
How many molecules are in 2.6 grams of H2O?
5 answers
asked by
Bob
2,402 views
1 g alloy of Cu and Zn reacted with excess of H2SO4 gives 60 ml of H2 at STP. What is the % of Zn in the alloy?
4 answers
asked by
abhijit
1,703 views
How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....
4 answers
asked by
Chan
2,917 views
I can't get this!
If 4.00 g of H2 are made to react with excess CO(g) how many grams of CH3OH(l) can theoretically be produced
4 answers
asked by
Veronica
1,510 views
The mole fraction of neon in the air is about .0000026. If the average molar mass of air is 28.96 g/mol, what is the
5 answers
asked by
Sarah
4,408 views
calculate the volume(ml) of a 0.215M KOH solution that will completely neutralize each of the following?
a) 2.50ml of a 0.825M
4 answers
asked by
Connie
4,551 views
An unknown metal is found to have a density of 19.300 g/cm^3 and to crystallize in a body-centered cubic lattice. The edge of
4 answers
asked by
sam
4,708 views
If 7.83 g FeCl3(s) is dissolved in enough water to make 2.50 L of solution, what is the concentration of Fe3+ in the solution?
5 answers
asked by
Kevin
2,003 views
8. If you were given 300g of Fe2O3 and were asked to calculate the number of molecules in the sample, what would be the correct
5 answers
asked by
heyo ❄
526 views
A flask containing 5.00mL of 3 M HCl solution requires 14.45mL of 1.00 M NaOH for titration. How many moles of HCl are present
4 answers
asked by
John
1,976 views
suppose that you could decompose 0.250 mole of Ag2s into its elements
a.How many moles of silver would you have? how many moles
7 answers
asked by
ben
2,976 views
When 100.g Mg3N2 reacts with 75.0 g H2O, 15.0 g of NH3 is formed. What is the % yield?
5 answers
asked by
Taylor
8,307 views
What size container do you need to hold 0.0459 mol of N2 gas at stp
6 answers
asked by
Jimmy B
5,951 views
6.0mol of ammonia gas is injected into a 3.0 mol L container. at equilibrium 1.5 mol of hydrogen gas is found in the container.
7 answers
asked by
nicole
2,923 views
A 500 mL potassium chloride solution was prepared by dissolving
potassium chloride in distilled water. 25.0 mL of the solution
4 answers
asked by
Prince
1,366 views
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