Multiple Choice
What is the quantity, in moles, of NaI present in 175.0 mL of a 0.230 M NaI solution?
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2. Atoms & Elements
Mole Concept
Back2. Atoms & Elements
Mole Concept
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- Multiple Choice
If a sample of sodium chloride, NaCl, contains 73.1 kg, what is its number of formula units?
3667views20rank1comments - Multiple Choice
Calculate the number of oxygen atoms found in 783.9 g NiCl2 • 6 H2O.
2367views17rank3comments - Multiple Choice
If the density of water is 1.00 g/mL at 25°C, calculate the number of water molecules found in 1.50 x 103 µL of water.
3145views6rank3comments - Multiple Choice
A cylindrical copper wire is used for the fences around a house. The copper wire has a diameter of 0.0750 in. How many copper atoms are found in 5.160 cm piece? The density of copper is 8.96 g/cm3. (V = π • r2 • h)
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How many atoms of oxygen are in the chemical formula 2Ca(ClO2)2? 2, 4, 6, or 8?
838views - Open Question
How many moles are there in 8.50 x 10^24 molecules of sodium sulfate, Na2SO3?
778views