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Chemistry
Page 44
Questions (96,945)
ammonia, NH3, is a typical ingrediant in household cleaners. it is produced through a combination reaction involcing N2(g) and
4 answers
asked by
marissa
1,719 views
My question is basically to find out what these reactants yield:
CuCl2(aq) + NH3(aq) --> ? my best guess here is... CuCl2(aq) +
7 answers
asked by
Frederique
4,643 views
. On heating under suitable conditions, 1 liter of a monoatomic gas X combines with 1 .5litres of oxygen forming an oxide.
What
4 answers
asked by
Ziva
654 views
Given the following information:
2NaHCO3(s) + 85 kJ → Na2CO3(s) + H2O(l) CO2(g) Calculate the amount of heat (in kJ) required
5 answers
asked by
Anonymous
2,115 views
if you're given a chart of half cell potentials (reduction potentials), how can you figure out which metals produce the highest
4 answers
asked by
melissa
3,220 views
An apparatus consists of a 4.0 dm3 flask containing nitrogen gas at 25 oC and 803 kPa. It is joined by a valve to a 10.0 dm3
4 answers
asked by
IGNITIOUS
2,084 views
What will happen if a mixture of BaCl2.2h2O and KCl heated up to 150 centigrade ?
4 answers
asked by
Ashen
3,920 views
Describe an experiment to determine the boiling point of a small quantity of a liquid
7 answers
asked by
rita
3,562 views
HCl is a gas at room temperature and does not conduct electricity. Yet when dissolved in water, the solution becomes an
4 answers
asked by
Morgan
1,313 views
If a solution contains 0.0100 mole of HCl in 10.0 mL aqueous solution.
a.) What is its molarity? My answer is 1M (0.0100
4 answers
asked by
audrey12
1,018 views
what is the pH and pOH of a soution with a volume of 5.4 that contains 15 grams of HCl and 25 grams of nitric acid
4 answers
asked by
Anonymous
1,291 views
The chemical substance in natural gas is a compound called methane. Its molecules are composed of carbon and hydrogen and each
4 answers
asked by
Perry
2,761 views
what is the total mass of LiBr required to make 500.0 grams of an aqueous solution of LiBr that has a concentration of 338 ppm?
4 answers
asked by
Lauren
4,033 views
The oxidation of sulfur dioxide to sulfur trioxide is an important reaction. At 1000K, the value of Kc is 3.6 x 10^-3. What is
5 answers
asked by
Jenny
1,002 views
What three conversion factors are often used in mole conversions?
4 answers
asked by
Sam
3,972 views
If 1.00 mol each of carbon dioxide and hydrogen is initially injected into a 10.0-L reaction chamber at 986 degrees Celsius,
4 answers
asked by
Nathaniel
2,175 views
What is the least reactive with aqueous solutions of metal ions?
A. tin B. zinc C. gold D. calcium
4 answers
asked by
HI:)
734 views
in an examination,31 candidates passed chemistry,29 passed physics and 3 failed both subjects,if 50 candidates sat for
4 answers
asked by
abdsalam habeebullah
586 views
Calculate the concentration of [H+] and [OH-] in 0.002 mol/L of HNO3 solution.
4 answers
asked by
Jealson
895 views
2. A tank of hydrogen contains 47.20 mL at 25 ºC. When the temperature of the balloon is increased to 58 ºC, what will be the
4 answers
asked by
noob
807 views
Write the formation reaction for ammonium acetate, NH4C2H3O2(s)
4 answers
asked by
Dua
986 views
Calculate the enthalpy change (in kJ) associated with the conversion of 25.0 grams of ice at -4.00 °C to water vapor at 109.0
4 answers
asked by
HT
1,703 views
Explain why the solubility of PbF2 is pH dependent, but the solubility of PbCl2 is not. I know the solubility of PbF2 is pH
4 answers
asked by
Robin
5,709 views
Fluorine-20 has a half-life of 11.0 s. If a sample initially contains 49.0 μg of this isotope, how much remains after 66.0 s ?
4 answers
asked by
susan
2,259 views
Use the reaction shown to calculate the mass of iron that must be used to obtain 0.500 L of hydrogen at STP: 3Fe(s) + 4H2O(l)
4 answers
asked by
jason
3,751 views
Chalcocite is an ore from which copper can be extracted for commercial use. The formula for this important ore is Cu2S. In the
6 answers
asked by
BreAnne
2,446 views
How many moles of oxygen are produced from the decomposition of 3.4g of hydrogen peroxide?
How many molecules of O2 are produced?
4 answers
asked by
Dani
2,394 views
pls arrange the following in their order of solubility: NH3, N2 AND CO2
4 answers
asked by
Anonymous
1,671 views
Write balanced complete ionic equation for HC2H3O2(aq) + K2CO3(aq)-----> H2O(l)+CO2(g)+KC2H3O2(aq)
I put
4 answers
asked by
Lisa
5,571 views
What is the molarity of 250 mL of a solution that contains 12.5 g of dissolved zinc bromide, ZnBr2?
4 answers
asked by
Jessica
1,121 views
How many grams of H3PO4 are in 175 Ml of a 3.5 M solution of H3PO4?
4 answers
asked by
Denmark
4,621 views
If 0.130 g of p-aminophenol is allowed to react with excess acetic anhydride , what is the theoretical yield of acetaminophen in
4 answers
asked by
Richard
4,113 views
I don't understand how to even start this problem:
A mixture of H2(g), O2(g), and 2 mL of H2O is present in a 0.5 L rigid
4 answers
asked by
Belinda
1,285 views
Is it possible to carry out steam distillation at a temperature higher than 100℃ at 1 atm? Why?
4 answers
asked by
cheme
730 views
Mg3N2 + 6H20 = 3Mg(OH) + 2NH3
What mass of magnesium nitride would you need to react with excess water to produce 25g of ammonia?
4 answers
asked by
Stephanie
1,331 views
How many grams of caco3 will be formed by passing excess co2 gas through 100ml of 0.25M ca(H)2 solution?
4 answers
asked by
sheeri
714 views
How many moles are in 7.5x10^24 molecules of carbon dioxide? Grams?
5 answers
asked by
Jake
2,583 views
Combustion analysis of 1.0g of a compound containing carbon , hydrogen and oxygen gives 2.3 g of carbon dioxide and 0.93g of
4 answers
asked by
hiedi
1,577 views
What volume of 5.0 M H2SO4 should be diluted to 100mL to prepare a 0.25 M H2SO4 M solution?
I know the molar mass of H2SO4 is 98g
4 answers
asked by
Mandy
3,269 views
1) Boric acid, H3 BO3, is a triprotic acid that dissociates in three reactions. The first dissociation step is: H3BO3 ⇌ H^+ +
4 answers
asked by
Mello
3,025 views
If the OH ion concentration in an aqueous solution at 25 celsius is 3.4x10^-3 M the the H concentration in moles per liter in
5 answers
asked by
HELPP
2,090 views
A solution consisting of water and ethanol is found to have a refractive index of 1.3541 at 20 degrees C. The refractive indices
4 answers
asked by
Omar
2,058 views
A 1.00 mol sample of N2O4 (g) is placed in a 10.0 L vessel and allowed to reach equilibrium accourding to the equation
N2O4(g)
4 answers
asked by
kevin
3,523 views
Balance in an acidic solution: S2O3^2- +OCL =CL^- +S4O6^2-
4 answers
asked by
Genelia
4,361 views
Of each pair of solids, which one has the higher melting point?
a) HCl and KCl b) Cu and Kr. Can you please explain? How do you
4 answers
asked by
Rebekah
2,457 views
Find the percent by mass of sodium chloride in a 1.45M NaCl solution. The density of the solution is 1.05g/mol .
4 answers
asked by
Rose
2,985 views
How many atoms of C are contained in 45.6g of C6H6?
4 answers
asked by
Marty
1,539 views
The enthalpy of formation of caesium chloride is -44.28kjmol-1 and enthalpy of sublimation of caesium is +77.66kjmol-1.With
5 answers
asked by
Bereket Tesefaye
684 views
If the slope of line for the kinetic data shown in the graph below is -0.0952 and the initial concentration of reactant is 0.25
4 answers
asked by
Okland
843 views
Butane (C4H10) has a heat of vaporization of 22.44 kJ/mole and a normal boiling point of -0.4 C. A 250 mL sealed flask contains
4 answers
asked by
elizabeth
1,485 views
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