Anything
The empirical formula for C6H8
What is C3H4
Which is the mass of 8 moles of NaCl?
What is 468 Grams
The percent of hydrogen in water.
What is 11.2 %
mole molecule atom
What is atom, molecule, mole
What is 6.02x10^23 atoms Al/ 1 mole Al
An unknown compound was found to have a percent composition as follows: 47.0 % potassium, 14.5 % carbon, and 38.5 % oxygen. What is the empirical formula?
What is KCO2
Calculate the number of molecules in 4.0 mol H2O.
What is 2.4 x 10^24
The percent of potassium in KBr
What is 32.9 %
What needs to be done to the balance before weighing anything.
What is taring or (zeroing) the balance
How many moles of atoms are in one mole of AlPO4?
What is 6 moles
The substances that have the same empirical formula are: A) CH2O B) C6H12O6 C) C2H4O2
D)C7H5O2
What are A and B and C
The molar mass of MgS*2H2O
What is 92.42 g/mol
Which of the following sets of data all represent the same amount with the correct units?
a) 1 mole Ca , 20 g Ca, 6.02x1023 atoms of Ca
b) 0.5 mole H2O, 3.01x1023 formula units H2O,
9 g H2O
c) 1 mole NaCl, 58.5 g NaCl, 6.02x1023 formula units
What is (c)?
A compound is made of 40.68% Carbon, 5.12% hydrogen and 54.20% oxygen. What is the empirical formula?
What is CH6O ?
Which is the percent composition of oxygen in the compound Mg2(PO4)3?
What is 57.6 %?
The formula for Ammonium nitrate.
What is (NH4)NO3
What is 3289 g?
The empirical formula of a compound is NO2. Its molecular mass is 92 g/mol. What is its molecular formula?
What is N2O4
Two balloons are blown up, each with a different gas. The first balloon has 1.2 x 1024 atoms of Helium. The second ballon has 16 grams of oxygen. Which balloon has a larger quantity of gas?
What is oxygen (0.5 mol vs. He = 2 moles)
Which is the formula for a compound that contains 64.75 g nitrogen and 185.25 g oxygen?
What is N2O5
This is what causes a bond to be polar.
What is an electronegativity difference between 0 and 1.7?