answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Nataly_w
4 months ago
12

When performing your experiment, you add your first drop of oleic acid/benzene solution, and a lens forms immediately. what is w

rong with your setup, and how can it be corrected?
Chemistry
2 answers:
Alekssandra [3K]4 months ago
7 0

The issue with your setup is that the surface where you placed the drop is contaminated or dirty, preventing it from being wetted by the solution. To fix this, thoroughly clean the surface before applying the drop.

eduard [2.7K]4 months ago
4 0

The lens formation happens because the surface where the drop is placed is contaminated, and this can be resolved by properly cleaning that surface.

Additional Details:

The scientific method involves careful thought about problems, including observations, forming hypotheses, planning and carrying out experiments, collecting data, and drawing conclusions.

Steps in the scientific method include:

  • Understanding the experiment's goals
  • Asking a testable question
  • Researching the topic
  • Formulating a hypothesis
  • Designing the experiment
  • Conducting the experiment
  • Collecting data
  • Reaching conclusions

An experiment is a systematic process tailored to address specific questions, involving independent and dependent variables.

In your experiment, when the first drop of oleic acid or benzene solution is added, an immediate lens forms because the surface is not clean, and thus the solution cannot evenly wet it. Cleaning the surface thoroughly will prevent this issue.

Further Reading:

  1. Transformation in chemistry by Lavoisier: brainly.com/question/5310569
  2. Which phase change is exothermic? brainly.com/question/1875234

Answer Details:

Grade: Senior School

Subject: Chemistry

Chapter: Keys to studying chemistry

Keywords: experiment, oleic acid, benzene solution, lens formation, cleaning substrate, scientific method, observation, data collection, hypothesis, research.

You might be interested in
An electrochemical cell is constructed with a zinc metal anode in contact with a 0.052 M solution of zinc nitrate and a silver c
Tems11 [2777]
Q is determined to be 12.38. The Nernst equation is expressed as Ecell = E°cell - (2.303RT/nF) log Q, where Q represents the reaction quotient. The reaction quotient Q is calculated by taking the product of the products' concentrations divided by the product of the reactants' concentrations. For an electrochemical cell, Q is the concentration ratio of the solution at the anode compared to that at the cathode. Consequently, Q = [anode]/[cathode], specifically Q = 0.052/0.0042, arriving at a value of Q = 12.38.
6 0
3 months ago
How many 2º alkyl bromides, neglecting stereoisomers, exist with the formula c6h13br?
Anarel [2989]

A secondary alkyl halide would be characterized by having a carbon atom connected to two other carbon atoms, with bromine attached to that carbon.


Therefore, bromo-hexane qualifies as a 2-degree or secondary alkyl halide


5 0
2 months ago
A food substance kept at 0°C becomes rotten (as determined by a good quantitative test) in 8.3 days. The same food rots in 10.6
Tems11 [2777]

Answer:

1.   67.2 kJ/mol

Explanation:

By applying the derived formula from the Arrhenius Equation

In \ (\frac{k_2}{k_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

It is given that:

time t_1 = 8.3 days = (8.3 × 24 ) hours = 199.2 hours

time t_2 = 10.6 hours

Temperature T_1 = 0° C = (0+273 )K = 273 K

Temperature T_2 = 30° C = (30+ 273) = 303 K

Rate = 8.314 J / mol

As a result

(\frac{k_2}{k_1}=\frac{t_2}{t_1})

In \ (\frac{t_2}{t_1}) = \frac{E_a}{R}(\frac{T_2-T_1}{T_2*T_1})

In \ (\frac{199.2}{10.6}) = \frac{E_a}{8.314}(\frac{303-273}{273*303})

2.934 = \frac{E_a}{8.314}(\frac{30}{82719})

2.934 = \frac{30E_a}{687725.766}

30E_a = 2.934 *687725.766

E_a = \frac{2.934 *687725.766}{30}

E_a =67255.58 \ J/mol

E_a =67.2 \ kJ/mol

7 0
2 months ago
Other questions:
  • Determine the number of 3s electrons in na.
    12·1 answer
  • A compound composed of only carbon and chlorine is 85.5% chlorine by mass. propose a lewis structure for the lightest of the pos
    6·2 answers
  • A 75.00 g sample of a substance is analyzed and found to consist of 32.73 g phosphorus and 42.27 g oxygen. calculate the percent
    5·1 answer
  • A 50.0 mL Volumetric flask filled with aqueous solution of hydrogen peroxide has a total mass of 88.5 g. The mass of the volumet
    12·1 answer
  • Does the result of the calculation in question 3 justify your original assumption that all of the SCN^- is in the form of FeNCS^
    14·1 answer
  • 13.3 g of benzene (C6H6) is dissolved in 282 g of carbon tetrachloride. What is the molal concentration of benzene in this solut
    14·1 answer
  • Identify the Lewis acids and Lewis bases in the following reactions:
    5·1 answer
  • How many chloride ions are in a 220 grams of calcium chloride?
    12·2 answers
  • Is utensils a substance homogeneous mixture or heterogeneous mixture
    15·1 answer
  • Gold(ill) hydroxide is used in medicine, porcelain making, and gold plating. It is quite insoluble in aqueous solution. Which of
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!