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Chemistry
Page 41
Questions (96,928)
Starting with 0.3500mol Co(g) and 0.05500mol COCL2(g) in a 3.050 L flask at 668K, how many moles of Cl2 are present at
6 answers
asked by
K
2,428 views
how do you write the equilibrium expression for: C3H8 + SO2-><- 3CO2 + 4H2O?
7 answers
asked by
madison
3,582 views
Which of the following is always true about a reaction at equilibrium?
A. The concentration of the products is not equal to the
6 answers
asked by
John
4,802 views
0.499g of Cuso.XH2O when heated to constant weight gave a residue 0.34g The value of X is?
4 answers
asked by
Sarah Banks
1,869 views
13. Solid sodium reacts violently with water, producing heat, hydrogen gas, and sodium hydroxide. How many molecules of hydrogen
9 answers
asked by
Mitch n' Joey
6,787 views
How many moles of potassium sulfate would you need to prepare 1200 grams of 5.0% sulfate (m/m) solution?
Calculate the volume of
4 answers
asked by
Donna
1,941 views
What are the three essential parts to make a battery?
Cell reducing agent acid fuse porous barrier or salt bridge voltage
5 answers
asked by
Karen
5,759 views
The Hydrolysis Reactions - Write net-ionic equations for the reaction of each salt with water below. If there is no reaction,
4 answers
asked by
K
13,261 views
5.0g of a mixture of caco3 and caO liberated 1.32g of carbon(4) oxide on strong heating .
what is the percentage of Cao in
5 answers
asked by
poppy👌🤔
1,447 views
29.0g Ag combine completely with 4.30g S to form a compound. what is the percent composition of each element in this compound
5 answers
asked by
kim
8,054 views
The question is: what is the ratio [NH3/[NH4+] in an ammonia/ammonium chloride buffer solution with pH= 10.00? (pKa for
4 answers
asked by
Marcus
2,654 views
For the equilibrium reaction:
CO(g)+H2O(g)<=>CO2(g)+H2(g) the Keq value at 690°C is 10.0. A mixture of 0.300 mol of CO, 0.300
4 answers
asked by
ami
2,659 views
Balance the reaction below in acidic conditions: IO3- + I- --> I2
What volume of 0.352 M HCl is needed to produce 2.48x10-3 moles
4 answers
asked by
Sarah
1,535 views
I am completing my lab and cannot figure this out. I need someone to go over it and make sure I am right because I can't figure
4 answers
asked by
Ashley
5,393 views
how do you calculate the molaarity of a water solution of CaCl2, given that 5.04 L of the solution contains 612 g of CaCl2.
5 answers
asked by
denise
2,166 views
What is the hybridization of the central atom in COH2??
Would the correct response, out of the following: a) sp b) sp^2 c) sp^3
5 answers
asked by
K
5,283 views
'Identify two factors that affect the change in entropy that occurs during the formation of an NaCl solution. State whether each
4 answers
asked by
SarahF275
1,544 views
3. Calculate the standard entropy change for the reaction:
N2 + 3H2 → 2NH3 given the standard entropies Sº(N2)(g) = 191.6 J
5 answers
asked by
John
4,919 views
For the reaction below, an analysis of an equilibrium mixture is performed at a certain temperature.
N2(g) + 3 Cl2(g) 2 NCl3(g)
5 answers
asked by
Larry
1,791 views
Why is there no reaction between solid magnesium metal and aqueous lithium nitrate?
4 answers
asked by
Blaize Sullivan
1,786 views
The equilibrium constant is equal to 5.00 at 1300K for the reaction
2SO2(g) + O2(g) <--> 2SO3(g) if initial concentrations are
4 answers
asked by
Fiona
8,019 views
The weak acid HQ has pKa of 4.89.
1)Calculate the [H3O+] of .035 M HQ. 2)Calculate the (OH-) of 0.500 M HQ ....Am I correct? a)
4 answers
asked by
patrick
5,598 views
Explain why the volume of 0.100 M NaOH required to reach the equivalence point in the titration of 25.00 mL of 0.100 M HA is the
4 answers
asked by
kobe
3,086 views
If the density of ethyl alcohol is 0.789 g/mL, how many quarts can be produced by the fermentation of 100.0 lb of sugar?
5 answers
asked by
Noah
3,306 views
How is the atomic structure of a Copper differ from Germanium, Silicon and Gallium Arsenide ?
Tnx :))
5 answers
asked by
Anne
5,595 views
How long would it take for 2.2 x 10^-4 mol H2 to effuse through the same orifice as the 2.2x 10^-4 mol N2? (It takes 105s for N2
5 answers
asked by
Nikki
1,299 views
Solutions of sodium carbonate and silver nitrate react to form solid silver carbonate and a solution of sodium nitrate. A
4 answers
asked by
Ezra
2,717 views
A 5 mL sample of 50% (m/v) acetic acid (Hc2H3O2) solution is added to water to give a final volume of 25 mL....what is the final
5 answers
asked by
Curlyqty
1,975 views
in the following total ionic equation, which ions are spectator ions?
Cu2+ (aq) +
4 answers
asked by
julia
3,549 views
How many molecules are in 2.6 grams of H2O?
5 answers
asked by
Bob
2,388 views
The standard heat of formation of solid ammonium nitrate. NH4NO3 is -330kJ/mol. The equation that represents this process is:
a)
5 answers
asked by
Bobby
3,068 views
In a methane molecule (CH4) there are 4 single covalent bonds. In an octane molecule (C8H18) there are 25 single covalent bonds.
6 answers
asked by
Taylor
5,349 views
1.86 g of ethanol reacts with 10.0 g of oxygen. What is the total volume of gas present (in L) after the reaction is complete,
5 answers
asked by
Jade
1,786 views
Nitrobenzene, C6H5NO2, is prepared from benzene, C6H6, and nitric acid, HNO3. The other product of the reaction is water. When
6 answers
asked by
shannon
4,052 views
How much carbon dioxide measured at 25.0â—¦C
and 821 Torr would be produced by the combustion of 319 g of glucose (C6H12O6)? 1.
9 answers
asked by
Evelyn
2,393 views
an aqueous solution solution of sodium borate is sometimes used to to fire-proof wood.
a. what is the molarity of 2.50 L of
4 answers
asked by
Jessica
1,438 views
This question id from IB exam,please help!
1)Which compound has the highest lattice enthalpy? A. CaO B. CaS C. LiF D. LiI Explain
5 answers
asked by
chirikamo
2,603 views
1 g alloy of Cu and Zn reacted with excess of H2SO4 gives 60 ml of H2 at STP. What is the % of Zn in the alloy?
4 answers
asked by
abhijit
1,684 views
how many grams of NaCl (molecular weight 58.5) should be used to prepare 20 liters of a solution containing 154mEq/L?
4 answers
asked by
mary
6,393 views
what is the total number of moles in 80.0 grams of C2H5Cl (gram-formula mass=64.5grams/mole)?
(1)0.806 (2)1.24 (3)2.48 (4)5.16 i
5 answers
asked by
Jason
9,888 views
How do I calculate number of moles of K2C2O4 in 20mL of a saturated (300g K2C2O4.H2O per liter) solution....
4 answers
asked by
Chan
2,896 views
Calculate the mass of calcium chloride to make 0.2M calcium chloride solution
4 answers
asked by
lastkingwamadiwa
464 views
KHCO3(s)+ HBr(aq)→
Express your answer as a chemical equation. Identify all of the phases in your answer.
4 answers
asked by
reetu
2,308 views
How does adding NH3 to the reaction below affect the equilibrium of the reaction?
N2 (g) +3H2 (g) <->2NH3 (g) A. Increasing the
5 answers
asked by
Anonymous
2,510 views
What is the total iconic equation and net ionic equation of the reaction between barium nitrate and ammonium oxalate Ba(NO3)2 +
4 answers
asked by
Anonymous
7,481 views
1.The pH of a 0.10 mol/L aqueous solution of Fe(NO3)3 is not 7.00. The equation that best accounts for this observation is:
a.
5 answers
asked by
Anonymous
2,612 views
Which is more soluble in water? Briefly explain why.
Acetic Acid: CH3CO(OH) OR Ethanol : CH3CH2OH I think its acetic acid because
4 answers
asked by
Mia
1,553 views
Nitric acid can be produced by the reaction of gaseous nitrogen dioxide with water.
3NO2(g) + H2O(§¤) −> 2HNO3(§¤) + NO(g)
6 answers
asked by
Morgan
5,274 views
The mole fraction of neon in the air is about .0000026. If the average molar mass of air is 28.96 g/mol, what is the
5 answers
asked by
Sarah
4,394 views
0.1 mol of HCl is added to 1 L of water.
What is [H+] and [OH-]?
4 answers
asked by
Krystal
2,210 views
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