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Stoichiometry
Page 10
Questions (11,726)
How many mL of O2 will form from 55.2g KClO3?
4 answers
asked by
Tina
1,499 views
2Hg + O2---> 2HgO
If the total mass of the product, mercuric oxide, HgO, is 433.2 grams, what is the total mass of the Mercury
6 answers
asked by
Niall James Horan
531 views
An aqueous antifreeze solution is 40.0% ethylene glycol (C2H6O2) by mass. The density of the solution is 1.05 g/cm3. Calculate
3 answers
asked by
Sarah
2,796 views
A 2.241 g sample of nickel reacts with oxygen to form 2.852 g of the metal oxide. Calculate the empirical formula of the oxide.
1
3 answers
asked by
hannah
3,908 views
How many moles of iodine are produced from 7.00 moles of chlorine, according to the equation shown?
3Cl2(g) + 2FeI2(s) -->
3 answers
asked by
Mercedes
1,206 views
How many grams of hydrogen gas are produced when 50.0 grams of zinc react with phosphoric acid, H3PO4 ?
Equation:3 Zn +2
4 answers
asked by
robb
1,024 views
Convert each quantity to an amount in moles:
a) 4.27 x 10^21 atoms of He b) 7.39 x 10^23 molecules of ICl
3 answers
asked by
Marty
1,486 views
I am really confused on this problem pleas help me.
N2H4(l)+O2(g)(arrow)N2(g)+2H2O(g) a. How many liters of N2 (at STP) form when
5 answers
asked by
Alekya
3,982 views
CO + 2*H2 --> CH3OH
How many moles of each reactant are needed to produce 3.60 x 10^2g CH3OH? I appreciate anyone who helps me
3 answers
asked by
Wes
1,737 views
5.5g of impure iron required 7.5cm3 of 3.0M HCL and give neutral solution calculate the purity of iron
3 answers
asked by
Pilly
145 views
O is a dibasic acid H2X .G is a solution containing 1.00g of NaOH in 250cm³ solution.
1) calculate the concentration of G in
3 answers
asked by
Lisa
449 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
923 views
I was doing a lab experiment on the reaction of copper(II) sulphate and aluminum:
1) I measured 2.02g of copper(II) sulphate
4 answers
asked by
Patrick
1,904 views
how many moles of nh3 are produced from 16 grams of n2 ?
3 answers
asked by
jojo
524 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
1,248 views
calculate the theorectical yield of the compounds to be prepared in the experiment. The metal ion in both cases is the limiting
4 answers
asked by
Debbie
2,286 views
255 grams of octane and 1510 grams of oxygen gas are present at the beginning of reaction that goes to completion and forms
2 answers
asked by
Keby
172 views
How many moles of P2O5 contain 3.68*1025 phosphorus atom? The
molar mass of P2O5 is 283.89 g/mol.
5 answers
asked by
moly
277 views
Number of molecules in 16g of H2CO3
4 answers
asked by
Sabrina
308 views
Calculate the concentration in g/dm3 of HNO3 in a solution (H=1; N=14; O=16)
1 answer
asked by
Michael
469 views
PbO2 + 2H2 = Pb + 2H2O
If 478g of lead doixide is heated, what is: a. the number of moles of lead dioxide used? b. the number of
4 answers
asked by
bobthebuilder
2,879 views
empirical formula for
K 60.0% C 18.5% N 21.5% and P 7.5% I 92.5%
3 answers
asked by
Mar
796 views
a 0.4617g sample containing sodium bicarbonate was dissolved and titrated with standard 0.106M of hydrochloric acid solution ,
3 answers
asked by
zzz
877 views
Calculate the volume of solution of 3.6 M NH4CI needed to prepare 350.0ml of 1.24 M NH4CI.
How many grams of ammonium chloride
3 answers
asked by
Donna
1,015 views
In the following reaction, how many liters of carbon dioxide will be produced if 250 liters of oxygen is used in the combustion
4 answers
asked by
Jessica
1,256 views
using the titration equation below calculate the number of moles of molecular iodine (I2) that must have reacted with the sodium
3 answers
asked by
Yul
1,430 views
How many moles of helium are contained in a 5.00-L canister at 101 kPa and 30.0 degrees Celsius? I don't understand how to get
4 answers
asked by
Walker
2,863 views
a certain solution contains 0.35 mol of HCl in 1200 mL of water. What is the pH of the solution?
3 answers
asked by
leah
456 views
In a reaction chamber, 3.0mol of aluminum is mixed with 5.3mol Cl2 and reacts. The reaction is described by the following
3 answers
asked by
Jack
4,532 views
Calculate the moles of C in 0.185 mole C6H14O
3 answers
asked by
Anonymous
336 views
Calculate the number of moles of calcium chloride that can be obtained in 30g of calcium trioxocarbonate (vi) in the presence of
3 answers
asked by
Elizabeth
373 views
A o.8378g sample of calcium oxalate is heated to 1000°C.(a) calculate the moles of CaO remaining after ignition .(b)calculate
4 answers
asked by
Kenneth
442 views
Calculate the moles of trioxonitrate (v) acid containing 6.og of acid in 250CM3
3 answers
asked by
Quadri
604 views
In the reaction of 2.75 g of magnesium metal with excess hydrochloric acid, what volume of hydrogen gas will be produced by the
4 answers
asked by
Dee
796 views
Consider the reaction below :
P4(s) + 5O2(g) P4O10(s) How many grams of phosphorus react with 1.195 x 102 L of oxygen (O2) at STP
3 answers
asked by
Rayan
980 views
The questions asks to write a word equation and a balanced chemical equation for a reaction between aqueous copper (ii) sulfate
4 answers
asked by
Dina
1,944 views
Greg reacts 5.0 moles of hydrochloric acid(HCL)with 1.5 moles of barium hydroxide(Ba(OH)2).Which reagent is the limiting
4 answers
asked by
Jeff
1,330 views
Na2CO3 + 2HNO3 -> 2NaNO3 + H2O + CO2
Time(s) Mass of Flask Plus Contents (g) 0 150.50 10 149.30 20 148.10 30 148.10 a)calculate
3 answers
asked by
lemon
1,124 views
Calculate the number of moles and number of grams of solute in 250 mL of a 0.10M CaCl2.
4 answers
asked by
Shaun
2,693 views
A solution contains, in each 5 mL, 0.5 g of potassium acetate (C2H3KO2, MW = 98), 0.5 g of potassium bicarbonate (KHCO3, Z =
2 answers
asked anonymously
122 views
How many moles of H are present in 1.85 moles of Benadryl?
Express your answer to three significant figures and include the
3 answers
asked anonymously
75 views
25g of a sample of ferrous sulphate was dissolved in water containing dilute h2s04 and the volume made up to one litre. 25ml of
2 answers
asked by
Fai
587 views
When 3.05 moles of CH4 are mixed with 5.03 moles of O2 the limiting reactant is __________.
CH4 + 2O2 �¨ CO2 + 2H2O A) CH4 B)
4 answers
asked by
Janaiby
3,818 views
In the combustion of natural gas according to the equation CH4 + 2 O2 -> CO2 +2 H20, how many grams of water are formed during
3 answers
asked by
Andrew
3,687 views
How many grams of a solid mixture containing strontium chloride would one need to make 558 mL of a 0.100 M strontium chloride
4 answers
asked by
Anonymous
2,312 views
Silicon Carbide, SiC, is prepared by heating silicon dioxide in the presence of graphite. Carbon dioxide is the by-product of
3 answers
asked by
Scott
1,603 views
How many grams does 0.500 moles of CuBr weigh?
3 answers
asked by
Jeanette
1,410 views
what volume of benzene ( C6H6 d=0.88g/ml molar mass = 78.11) is required to produce 1.5*10^3 kj of heat
2 answers
asked by
na
1,059 views
If 6.20 mol of calcium carbide (CaC2) reacts with an excess of water, how many moles of acetylene (C2H2), a gas used in welding,
2 answers
asked by
nina
1,056 views
Calculate volume of Carbon dioxide produced on heating 10g of limestone at S.T.P
2 answers
asked by
Mohit
809 views
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