Exam (elaborations)
CHM 1025: Module 2 Exam Review 2024 Questions With Verified & Completed Solutions.
- Course
- Institution
CHM 1025: Module 2 Exam Review 2024 Questions With Verified & Completed Solutions.
[Show more]
Seller
Follow
Content preview
CHM 1025: Module 2 Exam ReviewQuantity - ANS term for anything that can be measured
Measurement - ANS a quantity that has both a number and a unit
Types of error - ANS -instrument error
-human error
-method error (type of human error)
Instrument error - ANS Errors brought about by inaccurate or damaged measuring instruments.
Minimized by proper care and calibration of instruments.
Human error - ANS Mistakes made in instrument reading and data recording or in how the
measurement was performed. Minimized by taking repeated measurements to make sure they
are consistent.
Method error (type of human error) - ANS Errors brought about by differences in the way
different people read measuring equipment and instruments. Minimized by standardizing the
way manner in which instruments are read.
Precision - ANS a measure of how close a series of measurements are to one another
Accuracy - ANS refers to how close a measured value is to an accepted value
Significant figures - ANS All the digits that can be known precisely in a measurement, plus a last
estimated digit
Significant - ANS -non-zeros
-captive zeros
-trailing zeros WITH a decimal point
Not significant - ANS -leading zeros (to the left of all non-zeros)
May be significant - ANS -trailing zeros after non-zeros with no decimal
Scientific notation - ANS A way to show very large and very small #'s in a concise format.
Expresses #'s as the product of two values called the coefficient and the multiplier.
Exact numbers - ANS Numbers for which there is no uncertainty
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller LEWIS12. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.99. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
82191 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now