310 Answered Questions for the topic stoichiometry
Stoichiometry Chemistry
04/25/20
How many grams of water are produced when 3.56 grams of pentane (C5H12) burn with excess oxygen?
Stoichiometry Chemistry
04/23/20
Chem Stoichiometry multiple choice question
How many moles of potassium iodide, KI, are required to precipitate all of the lead (II) ion from 25.0 mL of a 1.6 M Pb(NO3)2 solution?a.) 0.64 molb.) 0.080 molec.) 0.040 moled.) 064 mole.) 0.020 mole
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Stoichiometry Chemistry
04/23/20
Theoretical yield
What is the theoretical yield of H2O (MM=18) produces by burning 150g of C2H6 (MM=30) and enough O2 to allow for complete reaction. If the actual yield of H2O was found to be 135g of H2O, what is...
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Stoichiometry
04/23/20
STOICHIOMETRY: QUANTITATIVE INFORMATION ABOUT CHEMICAL REACTIONS
Ammonia gas can be prepared by the reaction of a metal oxide such as calcium oxide with ammonium chloride.CaO(s) + 2NH4CI(s) --> 2NH3(g) + H2O(g) + CaCl2(s)If 269g of CaO and 415g of NH4Cl are...
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Stoichiometry
04/23/20
STOICHIOMETRY: QUANTITATIVE INFORMATION ABOUT CHEMICAL REACTIONS
What volume of 0.124 M NaOH , in milliliters, contains 30.0 g of NaOH ?Volume= ___ mL
04/22/20
In the reaction between Al and HCl, if 1.32 g Al were reacted with excess hydrochloric acid, how many mL of Hydrogen gas could theoretically be emitted at STP?
In the reaction between Al and HCl, if 1.32 g Al were reacted with excess hydrochloric acid, how many mL of Hydrogen gas could theoretically be emitted at STP?the balanced equation should be:2 Al +...
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How many atoms are there in 0.228 moles of water?
using dimensional analysis?
How many molecules of nitrogen are there in 7.55 moles of N₂?
using dimensional analysis?
Stoichiometry Chemistry
04/22/20
What volume of 1.53 M KMnO4 , in liters, contains 164g of solute? Volume=___ L
What is the mass of 3.01 x 10²² molecules of carbon dioxide at STP?
using dimensional analysis
What volume, in liters, at STP, is occupied by 3.30 X 10²³ molecules of oxygen gas?
using dimensional analysis
calculating mass/volume at STP
1) What is the mass of 75.0 L of methane gas (CH₄) measured at STP?2) What volume, in liters, will be occupied by 48.8 g of helium gas at STP?3) What volume, in liters, at STP, is occupied by 3.30...
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Stoichiometry Chemistry
04/18/20
What mass of water will be produced from 2.70 moles of Ca(OH)2 reacting with HCl?
Stoichiometry Chemistry
04/16/20
What volume of 0.200 M aluminum nitrate solution is needed to precipitate 50.0 grams of aluminum hydroxide from an excess of 0.100 M potassium hydroxide solution?
Stoichiometry Chemistry
04/12/20
When 12 grams of hydrogen reacts with oxygen, how many grams of water are produced?
Stoichiometry Chemistry
04/04/20
Chemistry Help needed ASAP
The balanced equation is C3H8+ 5O2 --------> 3CO2+4H2O. Please show the work for A-DA- Which one is the limiting reagent after 15.0 g of C3H8 reacts with19.5 g O2.B- Determine the mass of excess...
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Stoichiometry Chemistry
04/03/20
a) How many moles of glucose can be made from the reaction of 544 g of CO2? 2.06 mol and b) How many carbon atoms will be required to produce the glucose? 7.44 x 1024 carbon atoms
2) Photosynthesis in plants leads to the general overall reaction for producing glucose (C6H12O6): CO2 + H2O → C6H12O6 + O2a) How many moles of...
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According to the following balanced reaction, how many grams of NO are formed from 388 grams of NO2 if there is plenty of water present? 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g) (Please help Urgent)
Formula: 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)
Stoichiometry Chemistry
04/02/20
How many grams of oxygen (O2) are formed when 58.6 g of KNO3 decomposes according to the following reaction? The molar mass of KNO3 is 101.11 g/mol. 4 KNO3(s) → 2 K2O(s) + 2 N2(g) + 5 O2(g)
Formula: 4 KNO3(s) → 2 K2O(s) + 2 N2(g) + 5 O2(g)
Automotive air bags inflate when sodium azide, NaN3, rapidly decomposed into N2 and Na by the following reaction: 2 NaN3 --> 2 Na + 3 N2. In order to fill an air bag, 75.0 grams of N2 must be formed.
Question: How many grams of NaN3 must react to form 75.0 grams of N2.
How many grams of Li3N can be formed from 12.1 grams of Li? Assume an excess of nitrogen (N2). 6 Li(s) + N2(g) → 2 Li3N(s)
Formula: 6 Li(s) + N2(g) → 2 Li3N(s)
According to the following balanced reaction, how many grams of NO are formed from 388 grams of NO2 if there is plenty of water present? 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g) (Please help Urgent)
Formula: 3 NO2(g) + H2O(l) → 2 HNO3(aq) + NO(g)
Stoichiometry
03/28/20
How many molecules (not moles) of NH3 are produced from 1.72×10−4 g of H2?
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