Biology and Chemistry Homework Help Forum

Post thread
Free Biology, Chemistry, Geology homework help via qualified mentors. Please use the template when requesting help and show your work. Gain understanding today!
How Do Ks0 Values of MnCO3(s) Differ in Freshwater and Estuarine Waters?
  • · Replies 10 ·
Replies
10
Views
2K
Converting an Equation to Neutral Form
  • · Replies 4 ·
Replies
4
Views
1K
Calculate equilibrium dissolved oxygen at 19.8 Celsius
  • · Replies 6 ·
Replies
6
Views
3K
Biochemistry: Tryptophan fluorescence
  • · Replies 1 ·
Replies
1
Views
1K
Why does the Persulfate-Sulfate Couple not reach a potential of 2V in the lab?
  • · Replies 14 ·
Replies
14
Views
2K
Chemistry homework help with enthelpy
  • · Replies 3 ·
Replies
3
Views
2K
Solving Material Balance Problems in Evaporators
  • · Replies 1 ·
Replies
1
Views
3K
Does 2-Methyl-2-Pentene Have Stereoisomers?
  • · Replies 3 ·
Replies
3
Views
4K
What Are the Major Products of These Organic Addition Reactions?
  • · Replies 4 ·
Replies
4
Views
5K
How Do You Convert Tertiary Haloalkanes Using Free Radical Substitution?
  • · Replies 3 ·
Replies
3
Views
1K
How Can I Determine the Linearity of Experimental Curves in Statistics?
  • · Replies 3 ·
Replies
3
Views
2K
What could be the compound in this spectra with peaks at 154 and 154+2?
  • · Replies 4 ·
Replies
4
Views
2K
How Can I Record My Copper Sulphate Experiment?
  • · Replies 13 ·
Replies
13
Views
2K
Redox titration end point calculation -- Help please
  • · Replies 5 ·
Replies
5
Views
7K
Oxidation of cyclohexanol to hexane-1,6 dioic acid?
  • · Replies 2 ·
Replies
2
Views
5K
I need assistance with Classical Elements
  • · Replies 1 ·
Replies
1
Views
1K
Which Liquid Would Form the Densest Vapor Upon Heating?
  • · Replies 4 ·
Replies
4
Views
2K
Define Organic Compounds As Polar Or Nonpolar
  • · Replies 9 ·
Replies
9
Views
8K
Why Is Nickel Losing Electrons in Electrolysis?
  • · Replies 6 ·
Replies
6
Views
3K
Ascorbic Acid Amount Calculation (stoichiometry/)
  • · Replies 4 ·
Replies
4
Views
39K
How Does 1,3-Butadiene Absorb UV Light in Terms of Particle-in-a-Box Theory?
  • · Replies 3 ·
Replies
3
Views
4K
Osmotic Pressure Help Homework A&B | Solve Now
  • · Replies 5 ·
Replies
5
Views
2K
Polarizability: Understanding its Effects on Intermolecular Forces in Chemistry
  • · Replies 1 ·
Replies
1
Views
4K
What Causes the Increase in Density of a Hard Boiled Egg?
  • · Replies 7 ·
Replies
7
Views
15K
Solve Backtitration Problem: Find mL of NaOH Used
  • · Replies 1 ·
Replies
1
Views
3K
How Do You Calculate the Changing Mass of a Sublimating Solid?
  • · Replies 3 ·
Replies
3
Views
4K
Drawing a Lewis Dot Structure for Octathiocane (S8)
  • · Replies 1 ·
Replies
1
Views
2K
What percentage of N2O4 decomposes at 370K ?
  • · Replies 1 ·
Replies
1
Views
9K
Finding Mass Through Percent by Volume
  • · Replies 4 ·
Replies
4
Views
3K
Net Ionic Equation of Four Solutions
  • · Replies 1 ·
Replies
1
Views
1K
Calculate ΔU. n is constant. V, T and p change
  • · Replies 11 ·
Replies
11
Views
6K
Calculating Molarity for a Diluted Ethanol Solution - Quick Dilution Question
  • · Replies 4 ·
Replies
4
Views
2K
Finding the Concentration of Triiodide
  • · Replies 1 ·
Replies
1
Views
3K
Applying Coulomb's law to HCl and LiF
  • · Replies 5 ·
Replies
5
Views
3K
Chemistry Question regarding Chemistry ( Moles
  • · Replies 1 ·
Replies
1
Views
4K
Chemistry Understanding the reasoning behind the mole
  • · Replies 7 ·
Replies
7
Views
2K
Chemistry Resonance Structures for a Certain Molecule
  • · Replies 3 ·
Replies
3
Views
2K
Virial Expansion of Van Der Waals Equation
  • · Replies 1 ·
Replies
1
Views
3K
Chemistry Relationship between Atomic PPM and Mole
  • · Replies 4 ·
Replies
4
Views
6K
Position of Planets in the Sky | Homework Help
  • · Replies 1 ·
Replies
1
Views
2K
Need help on logic problem for Biology class
  • · Replies 1 ·
Replies
1
Views
2K
Determining an unknown Hydrocarbon X
  • · Replies 7 ·
Replies
7
Views
3K
Which Asset Should You Choose Based on Present Value?
  • · Replies 1 ·
Replies
1
Views
2K
Solve Density Problem: Mercury in Lake | Mass = 6 x 105 kg
  • · Replies 1 ·
Replies
1
Views
10K
Why Does the Answer Key Give 188.1 for This Significant Figures Calculation?
  • · Replies 4 ·
Replies
4
Views
5K
Chemistry Calculate persistence length of a single dsDNA molecule
  • · Replies 3 ·
Replies
3
Views
3K
No of C=C bond in carbonyl compound
  • · Replies 4 ·
Replies
4
Views
2K
Calculating NaOH dissociation entalphy problem
  • · Replies 2 ·
Replies
2
Views
2K
What Are the Nucleotide Percentages in This Gene?
  • · Replies 1 ·
Replies
1
Views
2K
Effect of Adding Water on Reaction Rate: Rate Law Theory Question
  • · Replies 2 ·
Replies
2
Views
2K
Temperature & PH: Does It Depend on Acid?
  • · Replies 2 ·
Replies
2
Views
1K
Normality of Vinegar and Acidity of Acetic Acid
  • · Replies 1 ·
Replies
1
Views
3K
Chemistry Total number of DNA molecules after environmental change
  • · Replies 1 ·
Replies
1
Views
1K
How Do You Calculate the pH at Equivalence Points in Malonic Acid Titration?
  • · Replies 6 ·
Replies
6
Views
3K
Mendelian explanation for bicolor coated puppy
  • · Replies 1 ·
Replies
1
Views
1K
Can a Graph of Concentration vs. Time Reveal a Balanced Chemical Equation?
  • · Replies 1 ·
Replies
1
Views
2K
Solve 2nd Order Reaction Kinetics: Mn(CO)sub5 → Mnsub2 (CO)sub10
  • · Replies 1 ·
Replies
1
Views
3K
Why Can't Acyl Chloride Form Hydrogen Bonds?
  • · Replies 1 ·
Replies
1
Views
3K
Hydrogentaion of Arene: Why Double Bond Not Broken?
  • · Replies 4 ·
Replies
4
Views
2K
Ph Scale Logarithms: Calculating Acidity Difference
  • · Replies 4 ·
Replies
4
Views
2K
Reaction 1: Peroxydisulfate & Iodide Anion
  • · Replies 1 ·
Replies
1
Views
2K
Which Ion Forms a White Precipitate with Dilute HCl That Dissolves When Warmed?
  • · Replies 4 ·
Replies
4
Views
3K
How Much P4S10 Can Be Made from 10g P4 and 30g S8?
  • · Replies 2 ·
Replies
2
Views
4K
Electrolysis and reduced mass of a metal bar
  • · Replies 3 ·
Replies
3
Views
2K
Possible formulae of an organic compound
  • · Replies 2 ·
Replies
2
Views
2K
Reaction of alkyl halides with strong unhindered bases
  • · Replies 2 ·
Replies
2
Views
3K
Why Do Offspring Inherit A,a or a Instead of A,a and a,a in Genetic Crosses?
  • · Replies 3 ·
Replies
3
Views
2K
Ideal Gas Law solve for partial pressure
  • · Replies 2 ·
Replies
2
Views
4K
Rate of Reaction with Respect to Temperature
  • · Replies 2 ·
Replies
2
Views
2K
Relationship between Free energy change and Equilibrium constant (K)
  • · Replies 3 ·
Replies
3
Views
3K
Why Are Specific Solvents Chosen for Sn2/Sn1, E2, and E1 Reactions?
  • · Replies 3 ·
Replies
3
Views
3K
Calculating ECell of Anode-Half Cell? Chemistry Review
  • · Replies 1 ·
Replies
1
Views
5K
Are These Chemical Reaction Review Answers Correct
  • · Replies 1 ·
Replies
1
Views
2K
What is the Partial Pressure of H2S at Equilibrium?
  • · Replies 19 ·
Replies
19
Views
4K
How is Ether Formed from an Alkyl Halide?
  • · Replies 3 ·
Replies
3
Views
2K
Chemical arithmetics: Answers not matching
  • · Replies 3 ·
Replies
3
Views
2K
How Do Steric Effects Influence Basicity?
  • · Replies 3 ·
Replies
3
Views
8K
Reaction of haloalkane with ammonia
  • · Replies 1 ·
Replies
1
Views
2K
How do you complete and balance neutralization reactions in aqueous solution?
  • · Replies 17 ·
Replies
17
Views
14K
Predict whether the following is neutral, basic, or acidic and the pH
  • · Replies 2 ·
Replies
2
Views
4K
What is the ratio of wave amplitudes at two sites with 5dB attenuation?
  • · Replies 4 ·
Replies
4
Views
4K
Acidity of compounds with oxygen-Nucleophility
  • · Replies 7 ·
Replies
7
Views
5K
Role of HNO3 in nitration of benzene
  • · Replies 3 ·
Replies
3
Views
6K
The Van't hoff factor for CaCL2 is 2.71
  • · Replies 2 ·
Replies
2
Views
11K
What happens if an acid is added to this buffer?
  • · Replies 2 ·
Replies
2
Views
5K
Chemistry Why Are There Two Different Molecules from SN1?
  • · Replies 1 ·
Replies
1
Views
2K
Chemistry Intermolecular Bonding of CH4: Van der Waals
  • · Replies 5 ·
Replies
5
Views
3K
Solubility Product Constant (Ksp) Problem
  • · Replies 2 ·
Replies
2
Views
4K
Chemistry 2-Ethylpentanone vs 2-Ethylpentanal
  • · Replies 6 ·
Replies
6
Views
3K
How to figure out the ratios in which elements combine
  • · Replies 2 ·
Replies
2
Views
4K
Attempting to draw 3-ethylbutanoic acid
  • · Replies 2 ·
Replies
2
Views
4K
How to convert ethene to but-1-yne?
  • · Replies 3 ·
Replies
3
Views
5K
Volume of air for complete combustion of alkane
  • · Replies 2 ·
Replies
2
Views
3K
Test River pH: Make an Indicator at Home
  • · Replies 3 ·
Replies
3
Views
3K
Calculating Volume of 0.835M Na2SO4 Solution (0.0534 mol Na+)
  • · Replies 3 ·
Replies
3
Views
4K
How to Calculate Population Size at T+1 Using Life Tables?
  • · Replies 6 ·
Replies
6
Views
4K
Calculating Mass in a Calorimetry Problem
  • · Replies 3 ·
Replies
3
Views
10K
Cycloalkane has no reaction with bromine
  • · Replies 4 ·
Replies
4
Views
4K
What is the Optically Active Product of Alkene Hydrolysis?
  • · Replies 1 ·
Replies
1
Views
3K
Way to extract those carbohydrates from vegetables
  • · Replies 2 ·
Replies
2
Views
3K