1.Which substance has the highest molar mass? Tungsten
Lead
Xenon
Barium
2.At standard temperature and pressure, how many liters of gas are in one mole of that gas?
2.4 L
10.0 L
22.4 L
100.0 L
3. Given the reaction: H₃PO₄ + 3 KOH → K₃PO₄ + 3H₂O If I have 25.0 g of KOH, how much potassium phosphate should I end up with?
4. in the last question, what is the percent yield if I end up with 28.0 g of product?

Calculate the change in entropy if br2(l) is converted into gaseous br atoms. s° for br2(l) = 152.2 j/(mol•k) s° for br2(g) = 245.5 j/(mol•k) s° for br(g) = 175.0 j/(mol•k)

The diagram below shows a cell placed in a solution.a cell is shown placed inside a beaker. it is labeled cell. the solution inside the beaker is labeled 40% salt solution and the solution inside the cell is labeled 20% salt solution.only water is allowed to move in and out of the cell. what will most likely happen to the cell? it will expand as water moves out of it. it will shrink as water moves out of it.it will expand as water moves into it. it will shrink as water moves into it.

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