Questions LLC
Login
or
Sign Up
Ask a New Question
Chemistry
Page 6
Questions (98,016)
In the titration of 50.0 mL of 1.0 M CH3NH2 (kb=4.4 x 10^-4), with 0.50 M HCl, calculate the pH
a) after 50.0 mL of 0.50 M has
7 answers
asked by
some kid
3,038 views
Equation: Fe2O3 + 2Al ---> 2Fe + Al2O3.
How many grams of Fe2O3 react with excess Al to make 475g Fe? Can you show me step by
4 answers
asked by
Anan
4,088 views
Equation For The Reaction Between Zinc Metal And Dilute Tetraoxosulphate (vi) Acid
6 answers
asked by
Favour
3,969 views
Matter Interactions Unit Test
7 of 13 Items Item 7 Use the table to answer the question. Observation # Before Reaction
7 answers
asked by
8th grade Connexus student
3,585 views
The double displacement reaction of aluminum sulfate and calcium hydroxide.
5 answers
asked by
hannah
4,407 views
What would be the ph of a 0.20M CH3COOH solution if no salt were present?
5 answers
asked by
Lazima Hassan
2,224 views
Which are particles that make up the nucleus of an atom select the two correct answers
3 answers
asked by
Garris
293 views
H2O2→ O2 + 2H+ + 2e- OCl- + 2H+ + 2e-→ H2O+ Cl- H2O2(aq) + OCl-(aq) → H2O(l) + Cl- (aq) + O2(g)Assign oxidation numbers to
4 answers
asked by
B
5,272 views
Which aqeuous solution has a freezing point closest to that of 0.30M C12H22O11?
A) 0.075M AlCl3 B) 0.15M CuCl2 C) 0.30M NaCl D)
4 answers
asked by
Vic
2,498 views
Complete and balance the reaction
Al(s) + Pb2+(aq) → using the smallest possible integers. What is the coefficient of Pb in the
4 answers
asked by
tyler
1,008 views
how many grams of NaOH are needed to neutralize 50 grams of H2SO4?
23 answers
asked by
kumera
10,765 views
The reaction of 2.5 mol of O2 with 4.6 mol of C3H8 will produce ________ mol of H2O.
4 answers
asked by
Anonymous
15,868 views
Aluminum sulfate reacts with calcium hydroxide (from lime) to form aluminum hydroxide and calcium sulfate. Write the balanced
6 answers
asked by
Ana
13,674 views
25cm3 of a solution of 0.1mol dm-3 NaoH reacts with 50cm3 of a solution of hydrochloric acid.What is the molarity of the acid
7 answers
asked by
jonah
7,840 views
The oxidation number of sulphur in CuSO4.5H2O is ......
12 answers
asked by
Anonymous
8,688 views
What mass of aluminum is deposited electrolytically in 30 minutes by a current of 40A?
13 answers
asked by
Masre
4,033 views
Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of
46.06 g/mol and a density 0.789 g/mL. How
6 answers
asked by
Seid
5,536 views
Describe how you would prepare a pure dry sample of calcium chloride in the laboratory
6 answers
asked by
Grace m
4,678 views
The overall balanced equation for the production of ethanol from glucose is as follow
C6H12O6 = 2C2H5OH + 2CO2 a) what is the
4 answers
asked by
Usman Bilal
3,676 views
S2Cl2, AlCl3, SiCl4, PCl3 which one is least polar give reason
7 answers
asked by
hajieka
3,768 views
If one mole of hydrocarbon contain 4g of hydrogen and it molar mass is 40g.what is the homologous series of the compound
5 answers
asked by
fatima
2,113 views
Silver chloride, AgCl, would be least soluble in
A.1.0M HCl B.1.0M NaNO3 C.1.0M ZnCl2 D.1.0M AgNO3 and why? thx
5 answers
asked by
saphire
7,551 views
what is the freezing point of a solution of 12.0 g of CCl4 dissolved in 750.0g of benzene? the freezing point of benzene is 5.48
5 answers
asked by
Kim
4,330 views
ihave two solutions. in the first solution , 1.0 moles of sodium chloride is disslved to make 1.0 liters of solution . in the
4 answers
asked by
wendy
8,103 views
what is the name for the following coordination compounds or ions?
1. [Al(H2O)6] Br3 2. [Cr(NH3)6] Cl3 3. K3[FeF6] 4. [Zn(OH)4]-2
5 answers
asked by
Rachel
6,062 views
Why is the second derivative of a titration curve more accurate method to determine endpoints and equivalence points than the
4 answers
asked by
tevon
8,662 views
What is the half equation for oxidation process for copper strip inside of silver nitrate solution?
4 answers
asked by
Denica
4,337 views
help me..
The pKa of acetic acid, HC2H3O2, is 4.76. A buffer solution was made using an unspecified amount of acetic acid and
4 answers
asked by
Azy
3,072 views
separate this redox reaction into its component half-reactions.
O2 + 4Cu-->2CuO Oxidation half-reaction: ? Reduction
5 answers
asked by
Sophie
3,307 views
The action of heat on lead (ii) trioxonitrate (v).which type of chemical reaction is this.
5 answers
asked by
Anonymous
2,745 views
If the reaction between H2 and I2 to form HI were at equilibrium and an additional 0.25 moles of H2 were added to the reaction,
5 answers
asked by
HQade
2,296 views
a mixture of methane and ethane is stored in a container at 294 mmHg. The gases are burned in air to form co2 and h2o. if the
4 answers
asked by
maggie
2,574 views
1.33dm³ of water at 70°c are saturated by 2.25moles of Pb(NO3)2, and 1.33dm³ of water at 18°c are saturated by 0.53mole of
17 answers
asked by
Kashim
4,433 views
Reaction Rates Portfolio Chemistry B Reaction Rates there are no instructions on how to do this, the teacher won't explain it
7 answers
asked by
Anonymous
1,532 views
ia 3ag2S+2AL = 6 ag +al2s3 a double replacement or single replacement
5 answers
asked by
Patricia
3,319 views
When 34.8grams of potassium sulphate was dissolved in 500cm cubed distilled water.calculate :the concentration of potassium
5 answers
asked by
lucy
1,575 views
Why must a hole be made in the aluminium lid
7 answers
asked by
Abbot
1,785 views
What is the molarity of KOH in a solution that has pH of 10.0?
4 answers
asked by
Nick
1,693 views
Rank the compounds by stand molar entropy.
F2(g), Ne(g), HF(g) I am a little confused by this question, wouldn't it be ranked by
5 answers
asked by
Anonymous
7,935 views
A 0.5130 g aspirin tablet which was dissolved in 95 percent ethanol required 27.98 mL of 0.1000 M NaOH for neutralization. Then
4 answers
asked by
kelis
1,244 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
893 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
1,285 views
2Cu+O²--->2CuO
Identify the reactans in the equation .write down their names
4 answers
asked by
Neo
1,226 views
45 grams of salt are dissolved in 0.10 L of solution. What is the concentration in g/L?
4 answers
asked by
Anonymous
1,103 views
The pH of an NH3 and NH4Cl solution is 9.20. What is the [H3O+]
4 answers
asked by
Leaf02
608 views
calculate the Volume Occupied By 0.125mol of oxygen at 27 and Pressure Of 2.02*10[1mol of gas occupies 22.4dm
4 answers
asked by
Anonymous
453 views
why might you not observe a reaction even though an activity series indicates it should occur?
4 answers
asked by
mel <3
1,399 views
H3PO4 + 3KOH = K3PO4 + 3 H2O What would be the percent yield if you reacted 49.0g of H3PO4 with 112g of potassium hydroxide, and
4 answers
asked by
Glenda
2,597 views
Sulfuric acid is diluted in water to make new mixtures. In one container, 72 ml of a 14% acid solution and, in another
4 answers
asked by
Alex
820 views
A 0.65 mole quantity of O2 occupies 4.0 L at 20.◦C. What is the final pressure exerted by the gas?
1. 0.92 atm 2. 3.9 atm 3.
6 answers
asked by
Dijames
6,458 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