A 39.36 gram sample of a hydrate of
CoSO4 was heated thoroughly in a
porcelain crucible, until its weight remained constant. After
heating, 21.70 grams of the dehydrated compound
remained. What is the formula of the hydrate?
A 39.36 gram sample of a hydrate of CoSO4 was heated thoroughly in a porcelain crucible,...
A 45.61 gram sample of a hydrate of Ba(ClO4)2 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 39.90 grams of the anhydrous compound remained. What is the formula of the hydrate?
It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration). A 39.45 gram sample of a hydrate of BaI2 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 30.91 grams of the anhydrous compound remained. What is the formula of the hydrate?
It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration).A 36.04 gram sample of a hydrate of Na2SO3 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 18.01 grams of the anhydrous compound remained. What is the formula of the hydrate?
(Review Topics) [References Use the References to access important values if needed for this question. It is often possible to change a hydrate into an anhydrous compound by heating it to drive off the water (dehydration) A 41.36 gram sample of a hydrate of Ca(NO3)2 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, 28.74 grams of the anhydrous compound remained. What is the formula of the hydrate? Use a period instead of a dot...
References Use the References to access important values if needed for this question. One of the hydrates of Na2SO4 is sodium sulfate heptahydrate. A 70.4 gram sample of Na2SO4.7H20 was heated thoroughly in a porcelain crucible, until its weight remained constant. After heating, how many grams of the anhydrous compound remained? Submit Answer progress
The following data were obtained when a hydrate was heated: crucible +sample 31.781 g 30.501 g empty crucible crucible + sample after heating 31.100 g 1. Calculate the % water in the hydrate. SHOW WORK. 2. Decide whether the sample was BaCl 2H20 or MgCl 6H2O by calculating the theoretical % water in each compound and comparing to your answer in #1. SHOW WORK. Formula weights: 95.218 g/mole MgCl2 208.25 g/mole BaCl2 НаО 18.0153 g/mole 89
A sample of hydrate was heated thoroughly. How many waters of hydration are there if the anhydrous salt had a dry mass of 12 grams and a molar mass of 185 g/mol? The mass of water evaporated from the hydrate was 5.0 g.
8. A 4.00 gram sample of a hydrate of nickel(II) bromide loses 0.793 grams of water when heated. Determine the mass percent water in the hydrate and the formula of the hydrate. 9. A 2.500 gram sample of a hydrate of calcium sulfate loses 0.523 grams of water when heated. and the fomula of the hydrate Determine the mass percent of water in the hyd rate and the formula of the hydrate.
determining the formula of a hydrate of calcium chloride (CaCl2·X H2O). Mass (g) Crucible and Lid 28.4735 Crucible and Lid + hydrate salt 33.1938 Crucible and Lid + anhydrous residue 32.0339 What is the mass of the hydrate? mass = ___ g What is the mass of the anhydrous residue? mass = ___ g What is the mass of water lost upon heating the sample? mass = ___ g How many mol of H2O were lost upon heating? (H2O: 18.016...
A student is given a sample of a calcium sulfate hydrate. He places the sample in a dry, covered crucible and weighs it. The total mass (crucible, cover, and hydrate) is 19.39219.392 g. The crucible and cover together had previously weighed 17.98717.987 g. He then heats the crucible to redness for 10 minutes with the cover slightly ajar. After the crucible cools, he weighs the crucible and its contents; the mass is now 19.09819.098 g, due to the loss of...