An unknown salt AS XH2O was analyzed and found to contain 16.4% water. If the anhydrous salt has a formula mass of 183 amu, find the water of crystallization (X) for the hydrate.
An unknown salt AS XH2O was analyzed and found to contain 16.4% water. If the anhydrous...
An
unknown hydrated salt was analyzed and found to contain 16.4%
water. If the anhydrous salt has a formula mass of 183.0 g, find
the empirical formula of the hydrate.
LOVE 3. An unknown hydrated salt was analyzed and found to contain 16.4 % water. If the anhydrous salt has a formula mass of 183.0 g, find the empirical formula of the hydrate. 4. Find the empirical formula of the hydrated salt, Caso, XH,O, if it contains 20.9 % water
The calculated ratio of moles water to moles anhydrous salt in CuSO4'xH2O is determined to be 5.12 to 1 in an experiment. Explain why should this number be rounded off to give a hydrate formula of CuSO4.5H20 and not written as CuSO4.5.12H20.
use the information given to calculate the formula for
mass/molar mass of the anhydrous salt of your unknown sample(show
calculations)
B. Determine the Formula of an Unknown Hydrate Unknown sample number: 20 Nickel II Molecular formula of the unknown: 1. Mass of crucible + unknown hydrate Nisou "X"H60 (sulfate) 37.40g 36-3lg 1:09g 2. Mass of crucible 3. Mass of unknown hydrate( 1 - 2) 4. Mass of crucible + anhydrous salt a. after first heating b. after second heating 31.3919...
If an unknown hydrate, AC XH20, has a mass of 1.555 g before heating, and a mass of 0.994 g after heating, what is the experimental percentage of water in the hydrate? f the anhydrous compound (AC) in the preceding problem has a molar mass of 160 g/mol, hat are the water of crystallization (X) and formula for the hydrate?
i have no idea how to do this...
192 EQUIPMENT and CHEMICALS • wire gauze • 250-ml beaker - watchglass • alum, KAl(SO4)2-12H20 • unknown hydrate samples S PROCEDURE A. Percentage of Water in Alum Hydrate 1. Weigh a clean, dry, 250-ml beaker covered with a watch glass. Add about 0.8-1.2 g of alum hydrate into the beaker, and reweigh accurately. 2. Support the beaker and watchglass on a ring stand using a wire gauze (Figure 1). Heat the hydrate...
UNKNOWN NUMBER Data Trial 1 Trial 2 Mass of the crucible and cover 28.2569 Mass of crucible, cover and sample 28.9369 2806309 30.7449 30.330g 30.328 Mass of crucible, cover and salt after first heating 29.7969 Mass of crucible, cover and salt after second heating 28.7979 Mass of crucible, cover and salt after third heating Calculations Chemical formula of anhydrous salt (given) Mass of hydrate (sample) Mass of anhydrous salt Mass of water liberated Percentage H20 in the hydrate Percentage anhydrous...
CHM 010 On-Line Lab, Formula of a Hydrate PURPOSE: To determine the formula of Cuso..x H20. In other words, to determine the value of "X". PROCEDURE: When copper(II) sulfate x hydrate, a blue crystalline solid containing embedded water molecules (called a hydrate), is heated in air, it loses the water molecules and the blue solid is transformed to a white anhydrous (no water) crystal known as anhydrous copper(II) sulfate. The "x" represents a whole number of water molecules attached to...
use the information given on the Nickle II sulfate to
do the calculations
Calculations: 1. Calculate the formula mass/molar mass of the anhydrous salt of your unknown sample (show calculations). mass of unknown = 1.099 mass of unknown and hydroussalt -37.40 a mass of water loss = 0.389 2. Calculate the number of moles of the anhydrous salt (show calculations). 3. Calculate the number of moles of water in the unknown hydrate (molars mass of H,0 18.02 g/mol). Show calculations....
a sample of an unknown compound was analyzed and found to contain 19.97% phosphorus and oxygen. What is the empirical formula of the compound? 4, Calculate the empirical formula for the compound formed when 10.83 g of zinc are heated with sulfur to form 16.16 g of zinc sulfide.
40 UNKNOWN NUMBER Data Trial 2 Trial 1 ২৪.6209 30.744g 30.330j 30.398 2&.256g Mass of the crucible and cover &&.4369 Mass of crucible, cover and sample 7989 Mass of crucible, cover and salt after first heating Mass of crucible, cover and salt after second heating &.99 Mass of crucible, cover and salt after third heating Calculations CaSOu CesOy Chemical formula of anhydrous salt (given) 2.1149 1. 6989 9-689 Mass of hydrate (sample) Mass of anhydrous salt 04169 Mass of water...