SICFIGS
How many significant figures is in the number 100.
3
1.00x102
What is the first step in the scientific method?
Making observations.
What is the formula of absolute error?
accepted - experimental
What is the measuring system we use in science?
metric system
How many significant figures is in 0.004500
4
What is 0.00000059123 in scientific notation?
5.9123x10-7
What is the difference between accuracy and precision?
accuracy is how close the measured values are to the accepted value. precision is how close the measured values are to each other.
What is the formula of relative error?
(l absolute error l) / (accepted value)
(l accepted-experimental l) / (accepted value)
Convert 500mL to L
0.500L
The sum of 320.53 km and 36 km is correctly expressed as
357 km
The molar mass of H2SO4 is 98.0543g/mol. Round this number to three significant figures and scientific notation.
9.81x101
What is the term for planning an experiment, proposing an explanation, testing the explanation and eventually stating a theory?
scientific method
What is the formula for percent error?
relative error x 100
A temperature of 456.7 K is equivalent to ___degrees celsius
183.7 degrees celsius
When multiplying and dividing measured quantities, the number of significant figures in the result should be equal to the number of significant figures in________________.
the least precise measurement
The sum of 314.76 km and 85 km is correctly expressed as what in scientific notation?
3.9976x102
During a laboratory activity a student combined two solutions. In the laboratory report, the student wrote “a yellow color appeared”. This statement represents a ___________________________.
qualitative observation
Carla Chemistry decided to determine the density of mercury. When she was finished, she reported the density of the mercury to be 16.782 g/cm3 but the density of mercury is 13.534 g/cm3. What is the percent error in Carla’s measurement?
23.999% error
0 degrees celsius to kelvin is?
273 k
What is the answer to (507.99 + 98.086) x 854.4
5.178 x 10 5
what is 8743 x 9000 expressed in scientific notation
8.0 x 107
These values were obtained as the mass of products from the same reaction: 8.83 g; 8.84 g; 8.82 g. The known mass of products from that reaction is 7.50 g. The values are
precise but not accurate
Bob came to a Miraculous solution with a problem. Bob was told to measure 20 cm of copper wire to use in an experiment. Since his ruler only measured to 12 cm he used this amount of wire and his experiment was a failure. What is the absolute, relative, and percent error?
8
0.4
40% error
What is the metric system conversion abbreviation AND what does each letter stand for?
king henry died by drinking chocolate milk
k-kilo h-hecta d-deca b-base d-deci c-centi m-milli