Chemistry, 05.03.2021 02:20, thanitoast84
A)Calculate the percent by mass of each element (H and O) in water (H2O):
b)Calculate the mass of hydrogen in your 50.0 mL of water. |
c)Calculate the mass of oxygen in your 50.0 mL of water.
d)Use the density of water to calculate the volume of one mole of water, in mL.
one mole of water is 50 ml
e)One swallow of water is about 20 mL of water.
f)How many moles of water are in one swallow?
g)How many molecules of water are in one swallow?
Answers: 2
Chemistry, 22.06.2019 14:30, Dreynolds1667
100 grams of molten lead (600°c) is used to make musket balls. if the lead shot is allowed to cool to room temperature (21°c), what is the change in entropy (in j/k) of the lead? (for the specific heat of molten and solid lead use 1.29 j/g⋅°c; the latent heat of fusion and the melting point of lead are 2.45 × 104 j/kg and 327°c, respectively.)
Answers: 1
Chemistry, 22.06.2019 15:00, raeprince9213
Which of the following is the correct formula for copper (i) sulfate trihydrate? cuso4 · 3h2o cuso4(h2o)3 cu2so4(h2o)3 cu2so4 · 3h2o
Answers: 1
Chemistry, 22.06.2019 23:00, poolwaterisgross
How does the value of the equilibrium constant show that a reaction reaches equilibrium very quickly? (a) the equilibrium constant is large. (b) the equilibrium constant is small. (c) the equilibrium constant is zero. (d) the value of the equilibrium constant does not show how quickly a reaction comes to equilibrium.
Answers: 1
A)Calculate the percent by mass of each element (H and O) in water (H2O):
b)Calculate the mass of h...
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