1. A student is running an experiment in which 32.4 grams of Na2CrO4 is needed, but the only jar of reagent in the lab i
Posted: Sun Feb 13, 2022 8:02 am
1. A student is running an experiment in which 32.4 grams of
Na2CrO4 is needed, but the only jar of reagent in the lab is
labelled sodium chromate decahydrate. How many grams of the hydrate
must the student weigh out in order to get the desired amount of
the anhydrous compound?
2. How
many ATOMS of nitrogen are
present in 2.83 grams
of dinitrogen
tetroxide, N2O4?
- How
many GRAMS of oxygen are
present
in 3.75×1022 molecules
of dinitrogen tetroxide?
3. How
many GRAMS of sulfur are
present in 2.91 moles
of sulfur
tetrafluoride, SF4?
- How
many MOLES of fluorine are
present in 1.57 grams
of sulfur tetrafluoride?
Na2CrO4 is needed, but the only jar of reagent in the lab is
labelled sodium chromate decahydrate. How many grams of the hydrate
must the student weigh out in order to get the desired amount of
the anhydrous compound?
2. How
many ATOMS of nitrogen are
present in 2.83 grams
of dinitrogen
tetroxide, N2O4?
- How
many GRAMS of oxygen are
present
in 3.75×1022 molecules
of dinitrogen tetroxide?
3. How
many GRAMS of sulfur are
present in 2.91 moles
of sulfur
tetrafluoride, SF4?
- How
many MOLES of fluorine are
present in 1.57 grams
of sulfur tetrafluoride?