Answer:
Significant Figures
Explanation:
1) Annotation category: ...
2)RULES FOR SIGNIFICANT FIGURES.
3) All non-zero numbers ARE significant. ...
4)Zeros between two non-zero digits ARE significant. ...
5)Leading zeros are NOT significant. ...
6)Trailing zeros to the right of the decimal ARE significant. ...
7)Trailing zeros in a whole number with the decimal shown ARE significant. 8) to make you happy :) hope this helps you :)
My relative pH reading for vinegar is my relative pH of baking soda
Answer:
3.727x10^24 atoms.
Explanation:
When calculating how many molecules are in a compound or element, we refer to Avogardo's number.
Your equation will look like this: 1 mole/ 6.022x10^23 molecules (Avogardo's number).
Multiply 6.19 by Avogardo's number to get your answer.
1.00mol is the correct answer
Ans: 1.4 moles
<u>Given:</u>
Mass of tungsten = 250 g
<u>To determine:</u>
Moles of Tungsten
<u>Explanation:</u>
# moles of a given substance = Mass of the substance in grams/molar mass (g.mol-1)
Atomic mass of W = 184 g.mol-1
# moles of W = 250 g/184 g.mol-1 = 1.359 moles
