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Stoichiometry
Page 7
Questions (11,839)
39.8g of a mixture of potassium chloride, KCl, and potassium trioxochlorate(V), KClO3, were heated to a constant mass. If the
4 answers
asked by
Oyinade
1,666 views
How do I do the empirical formula for 37.01% carbon, 2.22% hydrogen, 18.50% nitrogen, and 42.27% oxygen? My teacher gave me the
4 answers
asked by
Grace
2,522 views
The piperazine content of an impure commercial material can be determined by precipitating and weighing the diacetate:
(C2H4)2N2H
4 answers
asked by
Tom
3,117 views
A 116.9 g sample of nitric acid solution that is 70.0% HNO3 (by mass) contains how many moles of HNO3?
how did you get the answer
5 answers
asked by
DIANA
2,112 views
what mass of Iodine(I2) must be used to prepare a .960m solution if 1000g of ethanol (C2H5OH0 is used?
4 answers
asked by
Cassidy
2,543 views
Consider the following equation:
4NH3(g) + 5O2(g)----> 4NO(g)+6H2O(g) a. How many liters of oxygen are required to react with 2.5
4 answers
asked by
Ivy
4,218 views
consider the reaction in which 410 grams of Ca(NO3)2 react with just the right amount of lithium metal in a single replacement
4 answers
asked by
need help
2,531 views
How many atoms of carbon are contained in 47.6 g of Al2(CO3)3? The molar mass of Al2(CO3)3 is 233.99 g/mol.
6 answers
asked by
Emma
4,944 views
b) Identify how many moles of carbon dioxide would be released from the equation in (a) if 25.0 g of naphthalene were burned in
5 answers
asked by
Michele
480 views
An unknown molybdate (MoO4^-2) solution (50.00ml) was passed through a column containing Zn(s) to convert molybdate into Mo^3+.
4 answers
asked by
Ken
1,251 views
determine the residual gas when 20.0cm³ of hydrogen was sparked 15.0cm³ of oxygen and the resulting mixture cooled at room
4 answers
asked by
peter
457 views
What volume of oxygen at NTP is required to oxydize 100gram of glucose ?
4 answers
asked by
Shishir
1,583 views
4.80 dm^3 of chlorine gas was reacted with NaOH solution.
a) how many moles of Cl2 reacted b) what mass of NaOCl was formed? c)
4 answers
asked by
Gary
1,861 views
How many grams of Au2S can be obtained from 1017 mol of Au? The answer is 249. How did they get that?
4 answers
asked by
Kim K
1,257 views
What is the minimum volume of 2.6 M HBr required to completely dissolve 35.0 g of potassium metal?
4 answers
asked by
Jorge
1,627 views
Calculate the molarity of a Ba(OH)2 solution if 1.90 L is completely neutralized by 0.261 L of 0.505 M HNO3.
4 answers
asked by
anon
955 views
Consider calcium phosphate.
1) How many moles of calcium atoms are present in one mole of calcium phosphate? 2) How many moles of
4 answers
asked by
robert leland
1,601 views
4g of a mixture of CaCO3 and sand is treated with an excess of HCl and 0.88g of CO2 is produced. What is the percentage of CaCO3
5 answers
asked by
Ana
5,343 views
if 11.80 g of iron reacts with 5.06 g of oxygen, determine the empirical formula of the oxide?
4 answers
asked by
k
746 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
2,609 views
Acrylonitrile (c3H3N ) is the starting material for many synthetic carpets and fabrics. It is produced by the?
following
3 answers
asked by
maz
2,800 views
a 10.0mL sample of an unknown H3PO4 solution requirs 112mL of 0.100 M KOH to completely react with the H3PO4. What was the
4 answers
asked by
Monique
4,511 views
Consider the following reaction: 2K(s) + Cl2(g) -> 2KCl(s). If 8 mol potassium reacts with 10 mol chlorine, how much chlorine
4 answers
asked by
Josh
1,406 views
How many moles of P4O10 are produced when we react 8 moles of phosphorous with oxygen? I know the answer is:
4 mol P produces 1
4 answers
asked by
Timofey
1,142 views
Please help me with these questions:
1. Consider the equation:2Na+ 2H2O-->2NaOH +H2 -If 92.0g of sodium is reacted with 76.0g of
3 answers
asked by
Sally
1,424 views
The mass (in grams) of FeSO4*7H2O required for preparation of 125 mL of 0.90 M
4 answers
asked by
Snojika
1,582 views
In 1985 benitoite became the California "state gemstone." Found only in a tiny mine near Coalinga, California, it is a silicate
3 answers
asked by
Joe
928 views
What mass of limestone will produce 11.2g of lime
4 answers
asked by
tehillah
843 views
10000 tonnes of iron reacted in a blast furnace Fe2O3 calculate the typical mass of iron produced each day
4 answers
asked by
Anonymous
2,666 views
how many grams of hydrogen make up 3.5 moles of glucose C6H6O6?
a 1.7g b 3.5g c21.0g d 101.5g
6 answers
asked by
Anonymous
1,313 views
45.2 g of Mg(OH) 2 (s) is dissolved in enough water to make 1.00 L of solution. what is the concentration of the solution?
4 answers
asked by
lexi
435 views
Fe2O3 + 3H2 → 2Fe + 3H2O
Calculate the mass of iron produced when 450.0 grams of iron (III) oxide react with hydrogen gas. If
4 answers
asked by
Jake
613 views
A solution was prepared by dissolving 30g of a mixture of Iron(II) salt and Iron (III)salt in 1dm3 of a solution. A volume of
4 answers
asked by
Keziah
409 views
h2so4 is labelled as 9.8 by weight. specific gravity of h2so4 is 1.8. the volume of acid to be taken to prepare 100 ml of 0.18M
6 answers
asked by
Anonymous
4,790 views
6.10g of boron reacted completely with 22.9g of chlorine to give 29.0g of the metallic chloride. Calculate the empirical formula
9 answers
asked by
Kenry
2,011 views
How many grams of NH3 are present in 725 mL of gas at STP?
3 answers
asked by
haley
1,400 views
Combustion of a 0.1595 g of menthol
(156 g/mol) produces .449 g of Carbon Dioxide and 0.184 g of Water. What is the formula of
4 answers
asked by
Taylor
1,829 views
Water can be decomposed to hydrogen and oxygen. How many grams of water must decompose to yield 24.0L og gases at 1.00atm and 25
3 answers
asked by
TJ
1,382 views
how many grams of lithium sulfate will be formed when 25 grams of sulfuric acid react with an excess of lithium hydroxide in the
3 answers
asked by
mary
1,393 views
the formula: Ca(ClO3)2 --> CaCl2 + 3O2
what mass pf O2 results from the decomposition of 1.00 kg of calcium carbonate
4 answers
asked by
Anonymous
2,211 views
Calculate the volume of nitrogen that will be produced at S.T.P from the decomposition of 9.6g of ammonium dioxonitrate 3?
3 answers
asked by
Ọga mugu
732 views
Calculate the amount of hydrogen atoms in 0.75 mol of water molecules
3 answers
asked by
wallace
949 views
what volume of oxygen at 423.0K and a pressure of 127.4kPa will be produced by the decomposition of 129.7g barium peroxide to
4 answers
asked by
Adam
1,951 views
When 9.8g of aluminum oxide(Al2O3) decomposes, how many frams of aluminum metal are produced?
3 answers
asked by
Chelsy
2,109 views
what mass of lead (ii) trioxonitrate (v), Pb (NO5)2, would be required to yield 9g of lead (ii) chloride, PbCl, on the addition
1 answer
asked by
mai
350 views
An impure sample of Na2SO4 weighed 1.562g. A BaSO4 precipitate from this sample weighed 2.496g. Calculate the percentage of
3 answers
asked by
peter
934 views
How many grams of NH3 is there in 800 cm^3 at STP of NH3 gas?
3 answers
asked by
Shipra
1,248 views
Calcium carbonate can be decomposed by heating according to the equation Below. WHat is the percentage yield of calcium oxide in
4 answers
asked by
blah
1,256 views
In this case, the inflection point, and
equivalence, occurs after 23.25mL of 0.40 M NaOH has been delivered. Moles of base at the
3 answers
asked by
John
722 views
How many milliliters of .50 M NaOH solution are required to titrate 40.0 mL of a 0.10 M H2SO4 solution to an end joint?
4 answers
asked by
lacey
1,906 views
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