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Chemistry
Page 3
Questions (98,737)
Which type of intermolecular forces would be expected in a sample of F2 gas?
a. London forces, dipole interactions, and ionic
5 answers
asked by
Christine
4,362 views
A saturated solution of Na2SO4, with excess of the solid, is present at equilibrium with its vapor in a closed vessel. (a) How
7 answers
asked by
Jessica
8,338 views
What are the concentrations of Pb2+ and Cu2+ when the cell potential falls to 0.370 V?
Given: A voltaic cell consists of a
5 answers
asked by
Maria
5,875 views
If 1.0 g samples of each compound were
dehydrated, which sample would lose the greatest mass of water? Molar Masses: LiCl* H2O=
4 answers
asked by
Anonymous
1,652 views
1. Which statement is true about the following molecule? (1 point)The molecule is composed of four atoms.The molecule contains
94 answers
asked by
cIATA
24,723 views
A Balanced equation to represent the reaction between 1-pentanol and ethanoic acid. (Production of an ester)
5 answers
asked by
Shantel
10,880 views
What mass of sulfuric acid, H2SO4, is required to react with 1.27 g of potassium hydroxide, KOH? The products of this reaction
4 answers
asked by
Angel Wills
3,559 views
In the REDOX reaction in basic solution
Zn-->Zn(OH)4+H2 I know that the first half reaction is 4H20+Zn-->Zn(OH)4 +4H+e but the
7 answers
asked by
george
9,421 views
A current of 45A is passed through a solution of gold salt for 1 hour 45 minutes calculate (a) the mass of gold deposited (b)
7 answers
asked by
Joy
2,700 views
A 500 mL metal cylinder holding 0.100 moles of helium gas is known to rupture at a pressure of 10 atmospheres. At what
7 answers
asked by
Thao
6,751 views
How many grams of Fe(NO3)2 are present in 555mL of a 0.650 M solution of Fe(NO3)2??
I have no clue what to do??
5 answers
asked by
Ocean
2,564 views
Hydrogen (H2) and oxygen (O2) combine to make water (H2O) in the following equation.
6H2 + 3O2 -> ?H2O How many water molecules
10 answers
asked by
Samado
4,860 views
Calculate the mass of Mg metal required to consume 2560g of CO2 in the reaction. 2Mg+CO2_2MgO+C
6 answers
asked by
Asad khan
4,922 views
An enzymatic method for determining alcohol in wine is evaluated by comparison with a gas-chromatography (GC) method. the same
4 answers
asked by
Jam
1,736 views
25g of NH3 is mixed with 4 moles of O2 in given reaction.
4NH3(g)+5O2(g)-->4NO(g)+6H2O(1) <--- what mass of NO is formed? What
7 answers
asked by
Erawd
6,643 views
HNO2(aq)+NH3(aq)⇄NH4+(aq)+NO2−(aq)
Kc=1×10^6 Nitrous acid reacts with ammonia according to the balanced chemical equation
5 answers
asked by
...
6,955 views
how do you solve this problem??
What is the original molarity of a solution of formic acid (HCOOH) whose pH is 3.26 at
5 answers
asked by
jin
7,799 views
S2Cl2, AlCl3, SiCl4, PCl3 which one is least polar give reason
7 answers
asked by
hajieka
3,784 views
The equation below shows the incomplete combustion of ethene.
C2H4(g) + 2O2(g) ==> 2CO(g) + 2H2O(g) If 2.70 mol C2H4 is reacted
5 answers
asked by
Keith
7,609 views
C7H6O3(s) + C4H6O3(l) → C9H8O4(s) + HC2H3O2(l)
is the equation. At 20 degree celsius, how many liters of acetic acid, HC2H3O2,
7 answers
asked by
Emat
3,710 views
The action of heat on lead (ii) trioxonitrate (v).which type of chemical reaction is this.
5 answers
asked by
Anonymous
2,765 views
How many mL of 18 M H2SO4 are required to react with 250 mL of 2.50 M Al(OH)3 if the products are aluminum sulfate and water?
5 answers
asked by
Anna
4,588 views
A solution is prepared by dissolving 4.9g of sucrose in 17g water. Calculate the boiling point, freezing point and osmotic
4 answers
asked by
humphrey
2,621 views
What is the molar concentration of K4Fe(CN)6 solution if 40 ml were used to titrate 150 mg of Zn ( that are dissolved ) forming
4 answers
asked by
Mary
1,301 views
write balanced equation of the reaction of bromine and sodium thiosulfate
4 answers
asked by
swas
1,949 views
A lake may be polluted with Pb2+ ions. what precipitation reaction might you use to test for the presense of Pb2+?
4 answers
asked by
Josh
1,820 views
Using the information below, which answer lists the salts in order of increasing solubility?
PbSO4 Ksp = 1.6 x 10^-8 PbS Ksp = 8
4 answers
asked by
Christine
892 views
The titration of 25.00ml of 0.1000m hypochlorous acid (3.5x10^-8) with 0.1500m NaOH.
(a). What is the pH before any acid is added
4 answers
asked by
Abraham
1,518 views
a titration required 18.38mL of 0.1574 M NaOH solution. how many moles of NaOH were in this volume?
11 answers
asked by
Gurjot
6,987 views
A dilute electrolyte is not necessary weak and a concentrated electrolyte weak and a concentrated electrolyte is necessary
3 answers
asked by
Tatu
227 views
4. Vitamin C, M= 176.12 g/mol, is a compound of composed of carbon, hydrogen, and oxygen. Vitamin C is found in many natural
5 answers
asked by
IRA
4,358 views
An atom of potassium (K) has 19 protons: 18 electrons in its inner electron energy levels and 1 electron in its outer energy
4 answers
asked by
Josh
4,171 views
Which of
I) HCl II) HF III) LiOH IV) HClO2 V) HNO3 are strong acids or strong bases in water?
6 answers
asked by
cheri
2,310 views
Calculate the total number of F (Fluorine) atoms in 12.15 mol C2HBrClF3. The answer is 2.195 x 10^25 atoms, but I am not sure
6 answers
asked by
Bob
7,202 views
Hydrochloric acid is typically purchased in a relatively highly concentrated form and then diluted by adding slowly to water to
4 answers
asked by
Kalai
2,305 views
A 0.513 M solution of a weak base has a pH of 11.4. What is the Kb of the base?
5 answers
asked by
Martha
7,196 views
Write the balanced equation for vandadium (II) oxide with iron (III) oxide results in vanadium (V) oxide and iron (II) oxide.
2VO
5 answers
asked by
Hayden
5,790 views
Which equation shows conservation of mass and charge?
A.NH4Br → NH3 + Br2 B. 2Mg + Fe3+ → Mg2+ + 3Fe C. H2SO4 + LiOH →
6 answers
asked by
Angie
7,225 views
what volume of 0.120 M NaOH must be added to 100 ml of 0.100 M NaHC2O4 to reach ph of 4.70?
H2C2O4 Ka1 = 5.9 x 10-2 HC2O4^- Ka2 =
5 answers
asked by
Steve
4,569 views
For the system
H2(g) + CO2(g) <---> H2O(g) + CO(g) at equilibrium, the addition of H2(g) would cause (according to
4 answers
asked by
please help
6,275 views
if you disolve 2.00 mol KI in 1.00 L of water will you get a 2.00 M solution? explain please
4 answers
asked by
lynda smith
3,112 views
When 34.8grams of potassium sulphate was dissolved in 500cm cubed distilled water.calculate :the concentration of potassium
5 answers
asked by
lucy
1,585 views
Identify each enthalpy change by name and classify each change as exothermic or endothermic.
a)1 mol C3H8 (l) ==> 1 mol C3H8 (g)
5 answers
asked by
Sal
3,827 views
What is the molarity of KOH in a solution that has pH of 10.0?
4 answers
asked by
Nick
1,705 views
Do you think it is more useful to have the percent by mass of water in hydrate or the percentage composition, assuming that you
5 answers
asked by
cazzy
4,410 views
Write an equation for the reaction between iron fillings and dilute tetraoxosulphate (VI) acid.
5 answers
asked by
Divine
367 views
Approximately 1.5 10-3 g of iron(II) hydroxide, Fe(OH)2(s) dissolves per liter of water at 18°C. Calculate Ksp for Fe(OH)2(s)
5 answers
asked by
Jakob
1,731 views
Am asking on how a solid sample of lead ii chloride can be prepared using the following reagents dilute nitric acid, dilute
4 answers
asked by
Monicah
1,328 views
atomic numbers that add up to 200.
11 answers
asked anonymously
920 views
will MgCl2 reacts with NaCl to form precipitate
1 answer
asked anonymously
23 views
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