Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Page 11
Questions (96,939)
Calculate Ecell for reaction for the given info below..
O2(g)+2H2O(l)+4Ag(s)--> 4OH-(aq)+4Ag+(aq Ag+(aq)+ 1e ---> Ag(s) Ered=
4 answers
asked by
Hank
4,455 views
Calculate the pH that results when the following solutions are mixed
1. 35 mL of 0.20 M formic acid π»πΆπππ»,
5 answers
asked by
I need your help thanks
4,999 views
Ca(OH)2 has a Ksp of 6.5Γ10β6.
If 0.370 g of Ca(OH)2 is added to 500 mL of water and the mixture is allowed to come to
4 answers
asked by
Darcy
3,797 views
If you add 5.0 mL of 0.50 M NaOH solution to 20.0 mL to Buffer C, what is the change in pH of
the buffer? (where buffer C is
5 answers
asked by
Chelsea
5,669 views
If an element has an atomic number of 10, how many electrons are in its outermost shell?
a). 5 b). 10 c). 8 d). 2 e). The answer
6 answers
asked by
Mary
2,615 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
7,802 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
3,428 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
7,180 views
A 0.03 mol sample of NH4NO3(s) is placed in a 1 L evacuated flask, which is then sealed and heated. The NH4NO3(s) decomposes
5 answers
asked by
jerry
5,376 views
Enter the balanced complete ionic equation for HCl(aq)+K2CO3(aq)βH2O(l)+CO2(g)+KCl(aq)
Would it be: 2H+(aq) + 2Cl^-(aq) +
4 answers
asked by
Brandon
6,297 views
a considerable amount of heat is required for the decomposition of aluminum oxide.
2Al2O3-> 4Al(s)+ 3O2(g) change in heat= 3352KJ
5 answers
asked by
Skye
6,173 views
Give the symbol of the element of lowest atomic number whose ground state has:
a) Four f electrons b) a completed d subshell c)
5 answers
asked by
Meg
4,944 views
I dont quite understand how to find out if it's capable of reducing/oxidizing. My understanding is we check each potential and
4 answers
asked by
Z
1,568 views
Predict the order of increasing vapor pressure (at a given temperature) for the following compounds: FCH2CH2F and FCH2CH2OH and
5 answers
asked by
Master Le
5,094 views
How many grams of NaCl must react to produce 1.00 g Cl2?
6 answers
asked by
brigette
2,350 views
What type of intermolecular forces would you expect to find between molecules of H2O? of BrCl? of hexane (C6H14)?
5 answers
asked by
Ariana
6,680 views
The standard enthalpy of combustion of C2H6O(l) is -1,367 kJ mol-1 at 298 K. What is the standard enthalpy of formation of
4 answers
asked by
abby
4,374 views
A voltaic cell operates with 0.40 M Zn 2+ at the solid zinc anode and 1.45 M Zn2+ at the solid zinc cathode at 25 C. Is the
4 answers
asked by
Anonymous
2,974 views
Use the data in the table to calculate the equilibrium constant for the following reaction.
HCOOH(aq)+ OH β(aq) equilibrium
4 answers
asked by
Dani
3,222 views
A sample of gas of mass 2.929 g occupies a volume of 426 mL at 0degree Cel and 1.00 atm pressure. What is the molecular weight
6 answers
asked by
Peter
2,276 views
Reaction 6
1. Place a piece of mossy zinc in a test tube 2 add hydrochloric acid solution to the test tube until the mossy zinc
5 answers
asked by
Rain
4,191 views
write the steps of complete ionization of carbonic acid and hydro sulfuric acid.
5 answers
asked by
ryan
5,198 views
1.10 g of glucose was completely burnt in a copper calorimeter. The temperature of the water
increased from 25.85 Β°C to 36.50
4 answers
asked by
Justin
2,037 views
calculate the number of atoms present in 3.4g of h2s?
7 answers
asked by
plzzz find
2,460 views
What is the chemical equations for soot?
5 answers
asked by
....
1,185 views
How many moles of O are in 13.0 mol Fe(NO3)3?
can you please find this using dymensional analysis and show me how you worked it?
4 answers
asked by
sara
3,103 views
In an experiment, 0.0300 moles each of SO3(g), S02(g), and O2(g) were placed in a 10.0L flask at a certain temperature. When the
4 answers
asked by
Mitch
2,438 views
how many grams of solid calcium oxide must react with excess water to liberate the same quantity of heat as does the combustion
4 answers
asked by
maddie
1,485 views
An solution of antifreeze is prepared by mixing 23.0mL of ethylene glycol (d = 1.11 g/mL;molar mass = 62.07 g/mol) with 50.0 mL
4 answers
asked by
Mae
2,523 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
1,218 views
Calculate the hydrogen ion concentration and the pH of each of the following solutions of strong acids.
(a) 0.00010 M HCl if you
4 answers
asked by
lyne
1,262 views
Given the equilibrium reaction N2(g) + 3 H2(g) <---> 2NH3(g) + heat, an increase in temperature will:
a) Increase the value of K
5 answers
asked by
Chloe
6,330 views
A 25.00mL sample of 0.100M HC2H3O2 is titrated with 0.100M NaOH. What is the pH after 25.00mL of NaOH have been added? Ka
5 answers
asked by
Leaf02
871 views
For the equilibrium:
CO(g) + H2O(g) β CO2(g) + H2(g) KC = 10.0 If 1.6 mol of CO and 1.6 mol of water are initially added to a
4 answers
asked by
Potato34
698 views
Mno4- + So3-2 = Mno2 + sO4-2 (OH-) solve this redox reaction and give me the method also
4 answers
asked by
kiara
16,571 views
For the equilibrium:
CO(g) + 2 H2(g) β CH3OH(g) Calculate the value of Kp given these equilibrium partial pressures: carbon
5 answers
asked by
Panda
1,135 views
Insoluble silver carbonate, Ag2CO3(s), forms in the following balanced chemical reaction:
2AgNO3(aq) + K2CO3(aq) = Ag2CO3(s) +
6 answers
asked by
Gale
3,220 views
Water is being electrolysed in the presence of a non-reactive electrolyte under standard conditions. If 2.5 amperes of current
4 answers
asked by
Toni
3,718 views
Calculate the equivalent mass of each of the following acids.
a) HC2H3O2 b) KHCO3 c) H2SO3
7 answers
asked by
HELP PLEASE
2,667 views
What is the pH of a solution containing 0.81M HA and 0.35M A- ? Ka HA=5.45x10-8.
4 answers
asked by
Leaf02
521 views
what is the balanced formula equation, complete ionic equation, and net ionic equation FeSO4(aq) + KCl(aq)
4 answers
asked by
Anonymous
1,821 views
The iron in a 0.6656 g ore sample was reduced quantitatively to the +2 state and then titrated with 26.753 g of KMnO4 solution.
9 answers
asked by
Gloria
3,173 views
supposed that a liter of sample water contains 1.00 mmol of Ca2+ ions and 1.50 mmol HCO3- ions. how many millimoles of CaCO3
4 answers
asked by
Laura
2,823 views
25 mL of a 0.10 M solution of the weak acid hydrofluoric acid, HF, (Ka = 7.2 x 10-4) is titrated with a 0.10 M solution of the
4 answers
asked by
Larry
1,610 views
A contains 1.60g of trioxonitrate(v) acid in 250cmΒ³ of the solution.
B contains 9.0gdm3 of XHCO3, 25cmΒ³ portions of B required
4 answers
asked by
Marvellous
471 views
How many electrons are transferred in the reaction between magnesium metal and oxygen? Give your answer as a ratio of moles of
4 answers
asked by
help
1,441 views
Which of the two is the stronger base?Give your reason.
(a) HPO4 2- or PO4 3- (b)HS- or S2-
3 answers
asked by
Dewa
2,457 views
Zinc is determined by precipitating and weighing as Zn2Fe(CN)6. a. What weight of zinc is contained in a sample that gives 0.348
4 answers
asked by
PADMAJA
2,021 views
What is the gas given off when zinc reacts with dilute tetraoxosulphate vi acid
4 answers
asked by
Lawrence
136 views
Two cells are connected in series. One contain AlCl3, and the other contains AgNO3 as the electrolytes .what mass of Ag is
3 answers
asked by
Yadaveli
642 views
Pages
1
2
3
4
5
6
7
8
9
10
Parent Categories (62)
Academic Subjects
Advanced Placement (AP)
Arts and Sciences
Biology
Career
Earth Science
Education
Educational Resources
Experiments
General science
High School
History and Science
Homework Help
Industries
Majors
Math
Math and Science
Math/Science
Mathematics
Mathematics & Science
Mathematics and Science
Movies
Natural Sciences
Online Discussion
Physical Science
Physical Sciences
Physics
Science
Science & Environment
Science & Medicine
Science & Nature
Science and Biology
Science and Education
Science and Engineering
Science and Environment
Science and Experimentation
Science and Experiments
Science and Geography
Science and Health
Science and Math
Science and Mathematics
Science and Medicine
Science and Nature
Science and Research
Science and Technology
Science Education
Science Experiment
Science Experiments
Science Safety
Science/Educational
Science/Math
Science/Mathematics
Science/Molecular Biology
Science/Physics
Science/Technology
Sciences
Scientific Experiment
STEM (Science, Technology, Engineering, and Mathematics)
STEM (Science, Technology, Engineering, Mathematics)
Subjects
Test Preparation
Word Problems