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For the following reaction, 79.9 grams of barium chloride are allowed to react with 70.8 grams of potassium sulfate.
barium chloride (aq) + potassium sulfate (aq) barium sulfate (s) + potassium chloride (aq)
What is the maximum amount of barium sulfate that can be formed? grams
What is the FORMULA for the limiting reagent?
What amount of the excess reagent remains after the reaction is complete? grams
A balloon has a volume of 6.25 L at 453 kPa. What would the volume of this balloon be at 325 kPa
When lighting a Bunsen burner, should you keep the air inlet valve open or close
water.
The following experimental data were recorded for the dehydration of an unknown hydrate, BaCl2 • n H2O.
The cation is barium and the anion is chloride.
Mass of test tube (dry) 8.8875 g
Mass of test tube + sample 9.1399 g
Mass of test tube + sample after heating 9.1011 g
What is the percentage of water, by mass, in the hydrate?
Calculate and report your answer as a percentage, but do not input the percent sign. Report your answer to three significant figures.
Percentage of water by mass = ? %
The following experimental data were recorded for the dehydration of a different unknown hydrate, CoCl2 • n H2O.
The cation is cobalt and the anion is chloride.
Mass of test tube (dry) 8.7543 g
Mass of test tube + sample 8.9030 g
Mass of test tube + sample after heating 8.8350 g
What is the value of n in the empirical formula of the hydrate (CoCl2 • n H2O) rounded to the nearest integer?
Explain three reasons why potassium is larger than sodium.
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1. Analysis of a sample of a compound of iron and chlorine gas gave 44.06% iron and 55.94% chlorine. Another sample was analyzed to contain 31.52g of iron and 60.03g of chlorine.
a. Is the second sample the same compound as the first sample? show your calculation to support your answer
b. Could the second sample be another compound of iron and chlorine? Support your answer with calculation
1. What weight of Barium hydroxide is present in 35 ml of o.200N
