1. You have 10.3 moles of Nitric Acid (HNO3). How
many Oxygen atoms do you have?
2.
The reaction shown below shows that silver nitrate
(AgNO3) reacts with sodium chloride to make silver
chloride (AgCl) and sodium nitrate (NaNO3). How
many grams of silver chloride will be produced from 167 g
of silver nitrate when it is mixed with 100,000,000 grams of sodium
chloride?
AgNO3 + NaCl ➛ AgCl + NaNO3
How many electrons are in 2040
Ca+ ?
How many moles are in 40.00 oxygen has (O2)?
What is the energy in kJ/mol, of a mole of photons with
wavelength 494 nm?
Particle with a mass 9.1 * 10-31 kg has an
uncertainty in position of .54 nm. What is the velocity in
km/s?
Electron configuration to Co: [Ar] 3d?
4s2. How many unpaired of 3d electrons are
there in Co?
Which has the greatest effective nuclear charge Se or...
a. How many ATOMS of carbon are present in 3.13 moles of carbon
tetrabromide ? ------ atoms of carbon.
b. How many MOLES of bromine are present in 1.60×1021 molecules
of carbon tetrabromide ? ----- moles of bromine.
c. How many ATOMS of sulfur
are present in 3.88 moles of sulfur
dioxide ? ------ atoms of sulfur.
d. How many MOLES of oxygen
are present in 6.72×1022 molecules of
sulfur dioxide ? ------- moles of
oxygen.
e. How many MOLECULES...
1.) how many mole of oxygen atoms are present in 5.36g of
CaCo3?
2.) how many moles of Cl atoms are there in 1.7g of CCl4
3). What is the mass of 2.4x10^29 particles of CaCo3?
4.) In the reaction below, (CH4+2O2----> CO2 +2H2O) how many
moles of CH4 are required to react with 0.5 mol of oxygen gas to
form products?
5). Consider the reaction of 3 mol of P4 and 10 mol of oxygen
gas to produce P2O5....
5. How many moles of sulfide atoms are there in 1 mole of
Fe2(SO4)3?
6. What is the formula of Calcium Ion?
7. What is the formula for magnesium nitrate?
8. What is the molecular weight of Ca3(PO4)2 to the nearest
whole number?
1) 1. How many ATOMS of
sulfur are present in 4.30 moles
of sulfur dioxide ?
atoms of sulfur.
2. How many MOLES of
oxygen are present in
1.91×1022 molecules of sulfur
dioxide ?
moles of oxygen.
2) 1. How many MOLECULES of
carbon tetrafluoride are present in
1.45 moles of this compound ?
molecules.
2. How many MOLES of
carbon tetrafluoride are present in
1.07×1023 molecules of this compound
?
moles.
3) 1. How many MOLECULES of
phosphorus triiodide...