1⟩ Tell us what is buffer?
A buffer is an aqueous solution which has highly stable pH. It is a blend of a weak acid and its conjugate base or vice versa. On adding small amount of base or acid to buffer, its pH hardly changes.
“Chemistry Teacher related Frequently Asked Questions in various Chemistry Teacher job interviews by interviewer. The set of questions here ensures that you offer a perfect answer posed to you. So get preparation for your new job hunting”
A buffer is an aqueous solution which has highly stable pH. It is a blend of a weak acid and its conjugate base or vice versa. On adding small amount of base or acid to buffer, its pH hardly changes.
Both methods are used to separate the components present in the solution based on the melting points
☛ Distillation : This technique is used when boiling point of chemicals are different in the mixtures
☛ Fractionation : This technique is used when boiling point of chemicals are close to each other in the mixtures
According to Avogadro’s law, at same temperature and pressure equal volume of gases contains the same number or molecules regardless of the chemical nature and physical properties.
Avogadro’s number = 6.023 X 10 (-23)
The monomer of polyethene is ethylene
You need to have an honest self-evaluation of your strengths. Present a clear understanding curriculum and explain why you consider those special districts as your strengths. Identify strengths that you want to enhance and the steps you will or are following to catch your goals.
I am passionate about science, I enjoy working with young people, and when it came time to consider re-entering the work force I thought back to the best job I have had and that was working as a chemist. At the same time, I was volunteering as a tutor and classroom aid for a chemistry teacher at my daughter's high school. I was good at it and I loved it. The teacher and the principal both encouraged me to put the two things together into a mid-life career change and then helped me during my application process to the MAT program at University of Portland. The past three years I have been a substitute teacher in chemistry, biology and freshman physics classrooms working daily and long term. LT subbing has made my desire to teach stronger than ever and I hope to find a teaching job for the coming school year.
Elimination of lead oxide
I have the ability to communicate information and ideas in speaking so others will understand, apply general rules to specific problems to produce answers that make sense, combine pieces of information to form general rules or conclusions (includes finding a relationship among seemingly unrelated events), listen to and understand information and ideas presented through spoken words and sentences, read and understand information and ideas presented in writing.
Things don't always go according to plan and it is wise to be able to quickly notice and adapt a lesson. A: For example, I designed a lesson plan around an apartment analogy to teach students how to populate electrons around the nucleus of an element. Even though I ran my idea for the poster project by my lesson planning team, when I actually did it with my students I saw too many not understanding the steps. R: I reflected on the gaps and revised the guided practice portion to give more opportunities together. The next class had more success creating and using their posters to write electron configurations.
Levorotation and Dextrorotation is referred to the properties of plane polarized light, when light rotates clockwise when it approaches the observer is then known as dextro-rotation and when the light rotates anti-clockwise then it is referred as levo-rotation.
A compound which exhibits a dextro-rotation is referred as dextro-rotatory and which exhibits levo-rotation is referred as levo-rotatory.
Low resistivity and low melting point
Carbon dioxide and Methane
Aliquot : It is a measured sub-volume of original sample
Diluent: Material with which sample is diluted
In order to calculate the pH of a solution you have to use the formula pH= -log [H+] or pH = -log [H3O+]
To know the amount or volume of NaOH to prepare 400 mL of 1.5 M NaOH, we use formula
M1 X V1 = M2 X V2
V1 = M2 X V2/ M1
But before that we will convert 400 mL into litre = 0.4 L
5.5 X V1 = 1.5 M x 0.4 L
V1 = 1.5 M X 0.4L/ 5.5
V1= 0.10 L
V1 = 100mL
So, you need 100mL of 5.5 NaOH
Talking to others to convey information effectively, Giving full attention to what other people are saying, taking time to understand the points being made, asking questions as appropriate, and not interrupting at inappropriate times, Using logic and reasoning to identify the strengths and weaknesses of alternative solutions, conclusions or approaches to problems, Understanding written sentences and paragraphs in work related documents, Using scientific rules and methods to solve problems.
This kind of teacher interview question is created to discover your values and motivation. You need to prepare some examples in which show their behavior and teaching styles that inspired you. How have you tried to transmit the lesson you learned from him or her to your students? Emphasize qualities that would be valuable in the teaching position you are applying for in your answer.
I have a lot of ideas for activities and I am not always a linear thinker. When I was student teaching, I expected my students to be able to move with me through lesson plans that often incorporated too many untried technologies and jumped around from one task to another. (like the time students' videotaped an assignment and then we couldn't upload and share them on EDMODO). To address this weakness, I started creating lists of my ideas and bringing them to our lesson planning team or my cooperating teacher where I would sort them and relate each one to a learning standard. This helped me prioritize and choose an anchoring activity or lab around which I was able to plan bursts of direct instruction followed by practice and formative assessment. My students noticed the change and the dynamics of the classroom moved from chaos to more orderly intentional activity. Substitute teaching has really helped me continue to strengthen my lesson organization. By teaching block lesson plans created by seasoned teachers I have been able to keep students engaged and learning in high priority activities tied to learning targets.
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