Answer:
9.89 x 10²³ molecules H₂S
Explanation:
To find the molecules of H₂S, you need to (1) convert grams S to moles S (via the atomic mass of sulfur), then (2) convert moles S to moles H₂S (via the mole-to-mole ratio from equation coefficients), and then (3) convert moles H₂S to molecules H₂S (via Avogadro's Number). It is important to arrange the ratios/conversions in a way that allows for the cancellation of units. The final answer should have 3 sig figs to match the sig figs of the given value.
Atomic Mass (S): 32.065 g/mol
2 H₂S(s) + SO₂(g) -----> 3 S(s) + 2 H₂O(l)
Avogadro's Number:
6.022 x 10²³ molecules = 1 mole
79.0 g S 1 mole 2 moles H₂S 6.022 x 10²³ molecules
--------------- x --------------- x ---------------------- x ------------------------------------- =
32.065 g 3 moles S 1 mole
= 9.89 x 10²³ molecules H₂S
Answer:
There must be an equal amount of each element on both sides of the equation.
Hope this helps
good luck
The answer to the problem is 100
The answer to your question is the first one!
Hey there!
Your answer is D. salt water
A mixture has more than one substance.
Salt water is made up of multiple different substances, salt (NaCl) and water (H₂O).
Carbon dioxide (CO₂), water vapor (H₂O), and oxygen gas (O₂) are each just one substance.
Hope this helps!
