Mole-Particle Conversions

How would you write 564,000,000 in scientific notation?

• 5.64 x 10^-7
• 5.64 x 10⁶
• 5.64 x 10⁸
• 56.4 x 10⁷

Write 52,300,000 in scientific notation.

• 5.23 x 10⁷
• 5.230 x 10⁷
• 52.3 x 10⁶
• 52.30 x 10⁶

How would you write 0.0005 in scientific notation?

• 50 x 10⁵
• 5 x 10^-4

• 5 x 10³
• .5 x 10³

Express the following in scientific notation:
.000457

• 457 x 10⁶
• 457 x 10^-6
• 4.57 x10⁴
• 4.57 x 10^-4

How many moles of Na₂O are in 2.41 x 10¹⁵ molecules?

• 4.00 x 10^-9

• 1.45 x 10⁴⁷

• 1.45 x 10³⁹

• 2.49 x 10⁸

If you have 1.5 moles of Mg(NO₃)₂ for an experiment. How many atoms of magnesium nitrate is this?

• 9.03 x 10²³

• 2.49 x 10²³

• 6.02 x 10²³

Tags

NGSS.HS-PS1-7

45 moles of Ba(OH)₂ are needed for an experiment. How many molecules of barium hydroxide are used?

• 2.71 x 10²⁵

• 7.48 x 10^-23

• 1.34 x 10²²

If you have 3.21x10²⁶ atoms of NiS, how many moles of nickel II sulfide do you have?

• 533.22

• 1.93 x 10⁵⁰

• 1.88 x 10^-3

If you pump 6.17 moles of carbon dioxide into a room, how many molecules of carbon dioxide are you pumping?

• 3.71 x 10²⁴

• 1.02 x 10^-23

• 9.76 x 10²²

1. If you have 24.1 moles of sodium chloride, how many molecules of sodium chloride do you have?

• 1.45 x 10²⁵

• 4.00 x 10^-23

• 2.50 x 10²²