Grand Canyon University (GCU) CHM-115 Help & Answers Hub
Expert Help with General Chemistry II
STEM Prerequisite Prerequisite: CHM-113
CHM-115 Help at GCU — General Chemistry II Done For You
Homework, lab reports, written assignments, exams—all of it. A/B guaranteed.
Can Someone Help Me With CHM-115?
Yes. We handle every component of GCU’s General Chemistry II—homework assignments, CHM-115L lab reports, and exams. CHM-115 is where general chemistry gets abstract: chemical kinetics, equilibrium, acids and bases, thermodynamics, electrochemistry. This is the final step before organic chemistry. We’ll make sure you finish strong with an A or B guaranteed.
The Gateway to Organic Chemistry
CHM-115 stands between you and CHM-231. Don’t let equilibrium calculations delay your progress.
What Is CHM-115 at GCU?
CHM-115 (General Chemistry II-Lecture) is the second course in GCU’s two-semester general chemistry sequence for science majors. It’s a 3-credit lecture course that runs alongside CHM-115L, a separate 1-credit hands-on laboratory course. Together they complete the 8-credit foundation required for organic chemistry (CHM-231) and advanced STEM coursework.
CHM-115 continues with the same textbook and homework system used in CHM-113—Chemistry: The Central Science by Brown, LeMay, and Bursten. While CHM-113 focused on atomic structure, stoichiometry, and bonding, CHM-115 shifts to dynamic processes: how fast reactions happen (kinetics), how far they go (equilibrium), and the energy changes involved (thermodynamics). The math gets more complex, and the concepts become more abstract.
CHM-115 Course Details:
| Homework Platform | Same system as CHM-113 (Pearson) |
| Textbook | Chemistry: The Central Science (Chapters 12-20) |
| Lab Component | CHM-115L (separate 1-credit hands-on lab) |
| Prerequisites | CHM-113, CHM-113L, MAT-154 or higher |
| Credits | 3 credits (lecture) + 1 credit (lab) |
| Duration | 7-8 weeks (varies by session) |
What CHM-115 Covers
CHM-115 picks up where CHM-113 left off and introduces the dynamic aspects of chemistry:
Chemical Kinetics
Reaction rates, rate laws, integrated rate laws, half-life calculations, activation energy, Arrhenius equation, reaction mechanisms. How fast do reactions happen and why?
Chemical Equilibrium
The conceptual heart of CHM-115. Equilibrium constants (K), reaction quotient (Q), Le Châtelier’s principle, ICE tables. Most students struggle here—it requires thinking about reactions as dynamic, two-way processes.
Acids & Bases
pH calculations, weak acid/base equilibria, Ka and Kb, buffer solutions, titrations, Henderson-Hasselbalch equation. Math-heavy with logarithms throughout.
Solubility Equilibria
Solubility product constant (Ksp), common ion effect, precipitation reactions, complex ion formation. Applying equilibrium concepts to dissolution.
Thermodynamics
Entropy (S), Gibbs free energy (G), spontaneity, ΔG = ΔH – TΔS, standard free energies of formation. Predicting whether reactions will occur.
Electrochemistry
Galvanic cells, cell potentials, standard reduction potentials, Nernst equation, electrolysis. Connecting chemistry to electrical energy.
Nuclear Chemistry
Radioactive decay, half-life, nuclear reactions, fission and fusion. Often covered quickly at the end but appears on the final.
Where CHM-115 Students Get Stuck
Chemical Equilibrium (The Conceptual Leap)
Equilibrium is where CHM-115 students struggle most. Unlike the “reactants → products” thinking from CHM-113, equilibrium requires understanding that reactions go both directions simultaneously. At equilibrium, forward and reverse rates are equal—but concentrations aren’t necessarily equal.
The ICE table method:
Then substitute into K expression and solve for x
Common errors: Forgetting to include coefficients in the change row. Assuming x is small when it isn’t (or vice versa). Confusing K with Q. Not recognizing when Le Châtelier’s principle applies vs. when you need to calculate.
Acid-Base Equilibria
Acid-base problems combine equilibrium concepts with logarithmic calculations. You must identify whether you’re dealing with a strong acid/base (complete dissociation) or weak acid/base (equilibrium), then apply the appropriate method.
Key relationships:
- pH = -log[H⁺] and pOH = -log[OH⁻]
- pH + pOH = 14 (at 25°C)
- Ka × Kb = Kw = 1.0 × 10⁻¹⁴
- Henderson-Hasselbalch: pH = pKa + log([A⁻]/[HA])
Buffer problems require setting up the Henderson-Hasselbalch equation correctly and understanding that buffers resist pH change within their capacity limits.
Thermodynamics (ΔG Calculations)
Thermodynamics asks: will this reaction happen spontaneously? The answer depends on both enthalpy (ΔH) and entropy (ΔS), combined through Gibbs free energy.
The master equation: ΔG = ΔH – TΔS
- ΔG < 0: Spontaneous (thermodynamically favorable)
- ΔG > 0: Non-spontaneous (requires energy input)
- ΔG = 0: At equilibrium
Critical connection: ΔG° = -RT ln(K) links thermodynamics to equilibrium. Students who understand this relationship see how all of CHM-115 connects together.
Electrochemistry
Electrochemistry requires tracking electron flow, using standard reduction potential tables correctly, and applying the Nernst equation for non-standard conditions.
Cell potential: E°cell = E°cathode – E°anode
Common errors: Flipping signs incorrectly when reversing half-reactions. Forgetting that reduction potentials are intensive properties (don’t multiply by coefficients). Mixing up galvanic (spontaneous) and electrolytic (non-spontaneous) cells.
CHM-115L: The Lab Component
CHM-115L is a separate 1-credit co-requisite course with hands-on laboratory work that reinforces lecture concepts through experimentation.
Typical CHM-115L experiments include:
- Chemical kinetics — Determining rate laws experimentally
- Chemical equilibrium — Observing Le Châtelier’s principle in action
- Acid-base titrations — Using pH indicators and calculating concentrations
- Buffer preparation — Making and testing buffer solutions
- Electrochemistry — Building galvanic cells, measuring cell potentials
- Qualitative analysis — Identifying unknown ions through systematic testing
- Separation methods — Chromatography and other separation techniques
What we handle:
- Pre-lab assignments — Calculations and preparation questions due before lab
- Lab reports — Introduction, procedure, data tables, calculations, discussion, conclusion
- Post-lab questions — Conceptual questions connecting lab results to lecture material
- Data analysis — Proper significant figures, percent error calculations, graphing
All written work is 100% original and follows scientific writing conventions expected in STEM courses.
What We Handle in CHM-115
Homework Assignments
Weekly assignments covering kinetics, equilibrium, acids/bases, thermodynamics, and electrochemistry. We know the formatting requirements and common pitfalls.
Practice Quizzes
Low-stakes assessments before major exams. We complete these efficiently while building the knowledge base needed for graded assessments.
CHM-115L Lab Reports
Pre-lab calculations, formal lab reports, post-lab questions. Original work in proper scientific format with correct error analysis.
Discussion Posts
Weekly participation requirements. Thoughtful posts that demonstrate understanding and engage with classmates’ responses.
Quizzes & Exams
In-class quizzes, midterm, and comprehensive final exam. We handle proctored exams through secure remote access or provide comprehensive prep materials.
Full Course Completion
Don’t want to think about CHM-115 at all? We handle everything from Week 1 through final grade—lecture and lab.
Who Hires Us for CHM-115
Pre-Med Students
CHM-115 content appears directly on the MCAT. Acid-base equilibria, thermodynamics, and electrochemistry are heavily tested. Strong performance here matters for medical school applications.
Students Heading to Organic
CHM-231 (Organic Chemistry I) requires CHM-115 as a prerequisite. If you’re struggling in CHM-115, you need to finish strong before tackling organic’s reaction mechanisms.
Working Professionals
You’re completing your degree while working full-time. CHM-115’s abstract concepts require focused study time you don’t have. We handle the coursework so you can focus on your career.
Students Who Struggled in CHM-113
You passed CHM-113 but not comfortably. CHM-115 builds on those foundations—if they’re shaky, this course gets harder fast. We can help you finish the sequence strong.
How It Works
Send Your Syllabus
Current grade, deadline schedule, specific struggles
Get a Flat Quote
Within 24 hours, no surprises
We Complete the Work
Expert handles everything, updates you weekly
You Get Your Grade
A/B guaranteed or full refund
A/B Grade Guarantee
If we complete your CHM-115 coursework and your final grade is below a B, you receive a full refund. No fine print. See complete terms on our guarantee page.
Ready to Finish General Chemistry?
Send us your syllabus. We’ll have a quote to you within 24 hours.
Frequently Asked Questions
How much does CHM-115 help cost?
Pricing depends on remaining work, deadline urgency, and whether you want lecture only, lab only, or both. We provide flat-rate quotes. Send your syllabus for a quote within 24 hours.
Can you help with just CHM-115L lab reports?
Yes. We offer full course help or targeted assistance—just the homework, just the lab reports, or just exam prep. Many students handle the lecture work but need expert help on formal lab write-ups like the acid-base titration or electrochemistry labs.
Is CHM-115 harder than CHM-113?
Most students find CHM-115 more conceptually challenging. CHM-113 involves more straightforward calculations (stoichiometry, molar mass). CHM-115 requires understanding dynamic processes and multi-step problem solving. The equilibrium and acid-base units trip up students who did fine in CHM-113.
I passed CHM-113 with a C. Should I be worried about CHM-115?
Yes, potentially. CHM-115 assumes solid mastery of stoichiometry, molar calculations, and basic equilibrium concepts. If you scraped by in CHM-113, CHM-115 will be harder. Getting help early—before you fall behind—is much easier than trying to catch up mid-semester.
I’m already failing—can you save my grade?
Usually. We assess what’s remaining and calculate what’s mathematically possible. Strong performance on remaining homework, quizzes, and the final exam can often pull a failing grade to a B. Contact us with your current situation.
Are the exams proctored?
CHM-115 quizzes and exams are typically in-person or use proctoring software. We handle proctored exams through secure remote access with your permission, or provide comprehensive study materials so you can take them confidently yourself.
Is this confidential?
100%. Secure credential handling, no third-party sharing, natural completion pace, no retained data after course ends.
Ready to Finish CHM-115?
Complete the general chemistry sequence strong. Organic chemistry is next—make sure you’re ready. Send us your syllabus and get a quote within 24 hours.
Related Resources
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