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Stoichiometry
Page 3
Questions (11,722)
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
8,636 views
Using your answer from Part A, calculate the volume of a mole of Na atoms (in cm3/mol ). Assume that the entire volume is
17 answers
asked by
sara
8,076 views
Consider the balanced chemical equation: 3Sr(OH)2(aq) + 2H3PO4(aq) → Sr3(PO4)2(s) + 6H2O(l). How many moles of Sr(OH)2 remain
7 answers
asked by
Mike
5,152 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
1,895 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
1,763 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
7,815 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
3,658 views
how many kg of h20 must be added to 75.5g of Ca(NO3)2 to form a 0.500 m solution?
5 answers
asked by
lynda smith
3,450 views
How many grams of K2SO4 would you need to prepare 1500 g of 5.0% K2SO4 (m/m) solution?
5 answers
asked by
Jack
7,186 views
How many formula units would there be in a 54.3 gram sample of sodium nitrate
7 answers
asked by
gbolahan
2,486 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
5,815 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
3,622 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
7,239 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
4,571 views
How many grams of NaCl must react to produce 1.00 g Cl2?
6 answers
asked by
brigette
2,364 views
If the mass percentage of water in FeSO4 X H20 is 45.3%, find the number x?
4 answers
asked by
Azur
4,921 views
A 13.8 g sample of a compound containing only N and O produced 4.2 g of nitrogen on decomposition. What is its empirical
4 answers
asked by
Striker
1,055 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
3,352 views
When 50 mL of 1.0 M AgNO3 is added to 50 mL of 0.50 M HCl, a precipitate of AgCl forms. After the reaction is complete, what is
5 answers
asked by
Anonymous
1,230 views
What is the percent by mass of glucose in a solution containing 0.15 moles of glucose dissolved in 410g acetic acid? The molar
4 answers
asked by
Lauren smith
3,461 views
calculate how many grams of chloride ions are present in 50 grams of ocean salts
4 answers
asked by
T-perry
1,019 views
What volume of 0.5 BaCl2 are needed to have 0.1moles of BaCl2
4 answers
asked by
Anonymous
1,094 views
Silver oxide is used in small batteries called button batteries (Figure below). It decomposes upon heating to form silver metal
3 answers
asked by
Makayla Brad
939 views
calculate the mass of the water of hydration if a hydrate loses 0.025 mol of H2O when heated
3 answers
asked by
Sherry
1,611 views
How many grams of KClO3 must react to form 42.0 mL?
4 answers
asked by
Mia
1,898 views
If you had 106.35 grams of Cl, how much Na would be required to convert i all to NaCl. I worked this problem and got 41.83 grams
1 answer
asked by
Eliza
404 views
Methanol (CH3OH) is used in the production of many chemicals. methanol is made by reacting carbon monoxide and hydrogen at high
5 answers
asked by
Skye
5,338 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
5,399 views
Determine the final volume of the solution if 0.783 grams of Na2CO3 is used to make a 0 348 M solution
Show all calculations
2 answers
asked by
Bonia
113 views
1g mixture of Cu2O and CuO on heating gives 0.88g of copper. Calculate % of CuO in mixture
4 answers
asked by
Durrani
2,319 views
If 20 mL of 0.01 M aqueous HCl is required to neutralize 30 mL of an aqueous solution of NaOH, determine the molarity of the
5 answers
asked by
Emily
2,339 views
Conservation of mass apply
Use the chemical equation to answer the question. 2Na + Cl2 → ?NaCl In the reaction, sodium and
25 answers
asked by
Shottaflow3k
2,021 views
When copper(II) nitrate reacts with sodium hydroxide, copper (II) hydroxide is produced. How many grams of Cu(OH)2 can be
5 answers
asked by
Ethan
2,682 views
Determine the empirical formula for each substance.
1. A dead alkaline battery is found to contain a compund of Mn and O. Its
6 answers
asked by
peter
4,171 views
What mass of O2 would be needed to burn 11g of the propane gas?
7 answers
asked by
Gabriel A.
3,267 views
6.0g of cobolt (II) carbonate was added to 40cm3 of hydrochloric acid, concentration 2.0 mol/dm3. Calculate the maximum yield of
4 answers
asked by
RM
5,353 views
A solution contains 1.694 mg of CoSO4 (MW 155.0) per mL. Calculate
a) The volume of 0.008640 M EDTA needed to titrate a 25.00 ml
4 answers
asked by
Sam
4,418 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
5,464 views
What volume of O2 is required to react with excess CS2 to produce 4.0L of CO2 Assume all gases at STP.
Not sure what I am doing
7 answers
asked by
T
13,104 views
How many liters of sulphur trioxide are formed when 4800cm3 of sulphur dioxide is burned in air?
10 answers
asked by
Abel kinde
4,394 views
why can I not use the formula m1v1=m2v2 for the following question: What volume of 1.20 M NaOH will be needed to neutralize 225
6 answers
asked by
drew
5,986 views
A 10.000 g sample of water contains 11.19% H by mass. What would by the %H in a 20.000 g sample of water?
I got 22.38%, would
7 answers
asked by
Anonymous
3,621 views
Hydrogen and chlorine react to yield hydrogen chloride: H2+ Cl2 ( 2HCl. How many grams of HCl are formed from reaction of 3.56 g
5 answers
asked by
Anonymous
7,360 views
A 0.02847 g sample of gas occupies 10.0-mL at 292.0 K and 1.10 atm. Upon further analysis, the compound is found to be 38.734% C
5 answers
asked by
arcos15
5,499 views
3.05 g hydrated copper sulfate produces 1.94 g of anhydrous salt.Assuming complete removal of all water of
6 answers
asked by
Joe
2,906 views
Deduce the number of nitrogen atoms in:
5.00 x 10^-3 mol of ammonia, NH3 and 4.601 g of nitrogen dioxide, NO2
6 answers
asked by
Syndra
4,308 views
Indicate the number of equivalents in each of the following:
4mol Mg2+ 0.1mol H+ 2mol Cl- 3mol Fe3+
5 answers
asked by
Katherine
10,238 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
3,146 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
5,260 views
In an experiment 3.10g of carbon, hydrogen and oxygen produced 4.4g of C02 and 2.7g of water on complete combustion. Determine
5 answers
asked by
The Okome
2,696 views
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