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Stoichiometry
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Questions (11,774)
Calculate the number of moles of calcium chloride Cacl2 that can be obtained from 25g of limestone CaCo3 in the presence of
22 answers
asked by
Anonymous
7,969 views
In one process 4 grams of sulphur was burnt in 48 decimetre cube of oxygen measured at room temperature. What is the limiting
5 answers
asked by
Jay
1,770 views
CuCO3=CuO +CO2.
Find the mass of 1mole of each substance taking part in the reaction. (Ar:Cu=64,C=12,O=16). When 31g of CuCO3 is
6 answers
asked by
Busola
5,273 views
How many atoms of Nitrogen are in 4(NH₄)₂CrO₄ ?
A. 1 B. 2 C. 8 D. 4
3 answers
asked anonymously
105 views
"How many grams of NH3 can be produced from the reaction of 28 g of N2 and 25 g of H2?
N2 + 3H2 ---> 2NH3 ==> 28 g N2 x (1 mol
11 answers
asked by
Emily
27,760 views
what is the mole ratio of C5H12-> C5H8 + 2H2?
5 answers
asked by
dee
4,198 views
What mass of KIO3 is needed to convert the copper in 0.2750 g of CuSO4 · 5H2O to
Cu(IO3)2?
4 answers
asked by
Liam
4,338 views
Calculate the percentage by mass of silicon tetrachloride.
5 answers
asked by
Dominion favour
1,160 views
Commercial vinegar was titrated with NaOH solution to determine the content of acetic acid, HC2H3O2. For 20.0 milliliters of the
4 answers
asked by
Sarah
8,363 views
Calculate the mass of sodium phosphate required to prepare 1.75 L of solution in which the sodium ion concentration is 0.25
5 answers
asked by
Zilly
3,238 views
The equation for burning C2H2 is
2C2H2(g) + 5O2(g) ⎯→ 4CO2(g) + 2H2O(g) a. If 15.9 L C2H2 react at STP, how many moles of CO2
5 answers
asked by
rob
3,632 views
Insoluble silver carbonate, Ag2CO3(s), forms in the following balanced chemical reaction:
2AgNO3(aq) + K2CO3(aq) = Ag2CO3(s) +
6 answers
asked by
Gale
3,235 views
What weight of na2co3 of 95% purity would be required to neutralize 45.6ml of 0.235n acid?
I want you step by step clearly
3 answers
asked by
Fai
2,032 views
Methane, CH4 burns in oxygen gas to form carbon dioxide and water. How many moles of carbon dioxide will be formed from 8.0g of
5 answers
asked by
Denmark
8,395 views
How many grams of solute are contained in 64.3 mL of 0.0238M KOH?
Do I convert 64.3ml to L=.0643L Multiiply .0643L and .0238M
5 answers
asked by
Suzanne
3,686 views
The molar mass of ammonium acetate is 77.083 g/mol. A student uses 0.100 mol of ammonium acetate in a chemical reaction.
How many
1 answer
asked by
bear
147 views
You burn 6 grams of carbon in plenty of air:
C ( s) + O2 ( g) = CO2 ( g) a What volume of gas will form (at rtp)? b What volume
10 answers
asked by
Maya
5,819 views
9.0g of hydrated salted CuSO4 x H2O was dissolved in 500cm3 of water and it's concentration in moldm3 was experimentally found
4 answers
asked by
Francisca
387 views
Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of
46.06 g/mol and a density 0.789 g/mL. How
6 answers
asked by
Seid
5,544 views
Calculate the total number of atoms in 0.00102 mol CH3(CH2)4CH2OH
The answer in the back of my book says 1.29 x 10^22 but i do
5 answers
asked by
Bob
4,943 views
Calculate the number of moles of Na2CO3 present in 100cm^3 of 2 M Na2CO3 solution.i got 5 moles.am i right
7 answers
asked by
lucy
1,845 views
An excess of a divalent metal M was dissolved in a limited volume of hydrochloric acid. If 576cm^3 of hydrogen were liberated at
7 answers
asked by
Adebayo
1,902 views
A sample of a hydrate of CuSO4 with a mass of 250 grams was heated until all the water was removed. The sample was then weighed
5 answers
asked by
cam
3,665 views
10cm3 of propane was sparked with 60cm3 of oxygen at Stp.What is the volume of residual gases after the reaction is cooled.
5 answers
asked by
Zino
1,678 views
calculate the number of atoms present in 3.4g of h2s?
7 answers
asked by
plzzz find
2,476 views
H3PO4 + 3KOH = K3PO4 + 3 H2O What would be the percent yield if you reacted 49.0g of H3PO4 with 112g of potassium hydroxide, and
4 answers
asked by
Glenda
2,598 views
The relative molecular mass of calcium carbonate (CaCO3) is 100. What is the minimum volume of 2.0 M hydrochloric acid (HCl)
6 answers
asked by
scienceguy
4,094 views
11. How many moles of CO2 would be produced from 56 moles of O2 according to the following balanced equation?
2 C2H6 + 7 O2 --->
7 answers
asked by
Sarah
5,410 views
4. Suppose that an excess of propane, C3H8 , burns in 320 g of oxygen, How many moles of water will be formed?
C3H8 + 5 O2 --> 3
7 answers
asked by
Hannah
4,601 views
1g mixture of Cu2O and CuO on heating gives 0.88g of copper. Calculate % of CuO in mixture
4 answers
asked by
Durrani
2,331 views
24 g of carbon and 32 g of oxygen combine to form carbon monoxide. What is the mass of the carbon monoxide formed?
5 answers
asked by
Hii
1,023 views
iron (III) oxide is formed when iron combines with oxygen in the air. how many grams of Fe2O3 are formed when 16.7g of Fe reacts
5 answers
asked by
cambell
7,946 views
What Volume of nitrogen at STP would be required to react with 0.100 mol of hydrogen to produce ammonia?
N2(g) +3H2 (g)(arrow)
6 answers
asked by
Mandy
2,962 views
Homw many grams of copper sulfate pentahydrate (CuSo4 5H2O) would you heat to produce 29.8 g of water?
4 answers
asked by
Anne
1,697 views
If 6.5g of zinc react with 5.0 of HCl according to the following reactant, which substance is the limiting reactant? How many
7 answers
asked by
samrawit
5,477 views
If 50.0 g of silicon dioxide is heated with an excess of carbon, 27.9g of silicon carbide is produced.
SiO2(s) + 3C(s) --> SiC(s)
5 answers
asked by
Kim
8,646 views
Determine the percent yield for the reaction between 98.7g of Sb2S3 and excess oxygen gas if 72.4g Sb4O6 is recovered along with
7 answers
asked by
kate
7,828 views
how many moles of iron would have been used up if 45.0g of copper were to be produced?
is it # mols Fe = 45.0gCu x 1mol/63.5g =
7 answers
asked by
Lily
3,287 views
A 1.575 g sample of ethanedioic acid crystals, H2C2O4. xH20 was dissolved in water and made up to 250cm^3 . One mole of the acid
6 answers
asked by
Jack
5,683 views
A test of an automobile engine exhaust revealed that 3.7g of NO2 was emitted in 10 minutes of operation. How many moles of NO2
4 answers
asked by
PJcotieboi
3,154 views
How many formula units would there be in a 54.3 gram sample of sodium nitrate
7 answers
asked by
gbolahan
2,499 views
Determine the number of moles and the mass of argon occupying 37.8L at stp
6 answers
asked by
Tenzin
2,044 views
Aluminum bromide and sodium hydroxide react to form aluminum hydroxide and sodium bromide.
a.)How many moles of sodium bromide
5 answers
asked by
Kelsi
4,578 views
iron metal & oxygen combine to form magnetic oxide of iron, Fe3O4. How many mols of iron can be converted to magnetic by 8.80
5 answers
asked by
Cassie
4,648 views
How many grams of SO2 can be produced from 100g of S and excess O2
5 answers
asked by
Mo
1,969 views
How many grams of NaCl must react to produce 1.00 g Cl2?
6 answers
asked by
brigette
2,376 views
If the mass percentage of water in FeSO4 X H20 is 45.3%, find the number x?
4 answers
asked by
Azur
4,936 views
The formaldehyde content of a pesticide preparation was determined by weighing 0.3124g of the liquid sample into a flask
5 answers
asked by
Ellen
3,359 views
what mass of zinc will be required to react completely with 100cm3 of a 1.0M hcl.
4 answers
asked by
sonia
1,126 views
what mass of so2 is produced from the reaction between 31.5g of s8 and 8.65g of o2?
I know how to find the limiting reagents and
4 answers
asked by
Jill
2,349 views
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