Chemistry pt 2
71,900,000,000
7.19 x 10^10 convert to whole-number notation
0.3
Give the answer of the following to the correct number of significant figures (0.575 x 18.1) / 30
44
Give the answer of the following to the correct number of significant figures (105.21+4.3) x 0.40
0.018
Give the answer of the following to the correct number of significant figures. 0.1050/5.8
14.2
Give the answer of the following to the correct number of significant figures. 10.0 + 4.165
3.69
Give the answer of the following to the correct number of significant figures. 2.05 x 1.80
17.47
Give the answer of the following to the correct number of significant figures. 25.05-7.584
2
How many significant figures does 0.00010?
6
How many significant figures does 0.508000 have?
3
How many significant figures does 0.600 have
4
How many significant figures does 10,250 have?
4
How many significant figures does 309.0 have?
3
How many significant figures does 350. have?
3
How many significant figures does 4.02 have?
1
How many significant figures does 50,000 have?
density
How much material there is in a certain space is what?
Practice Conversions
Practice Conversions
platinum
Say you have 1-ounce coins of gold, silver, and platinum. Their densities are 19.32 g/cm^3, 10.49 g/cm^3, and 21.45 g/cm^3, respectively. Which coin will take up the least space (volume)?
0.00000548
5.48 x 10^-6 convert to whole-number notation
copper
Copper, silver and gold have heat capacities (in J/g^c) of 0.385, 0.285, and 0.128, respectively. If we heat up samples of the metals, which one will have the lower temperature at the end of heating? Assume the metals have the same mass, shape, had the same initial temperature, and was heated with the same quantity of energy.
latent heat
This is the heat required to go from a two-phase system to a single phase of matter.
there is more precision in the 0.2500 cm value
What is the difference between 0.25 cm and 0.2500 cm?
condensation
Which of the following phase changes is exclusively exothermic? condensation, melting, evaporation, or sublimation
8.000537 x 10^3
convert to scientific not. 8,000.537