
2. Calculate the percent water in the following hydrates. A. MgSO4 7H2O B. Cobalt (II) chloride hexahydrate
Chem The Formula of a Hydrate Calculate the percent water in cobalt(II) chloride hexahydrate, CoCl 6H2O. 1. 2. The mass percent of water in a hydrate of FeSO4 is 45.35 %. What is the formula of the hydrate?
Suppose 0.250 g of cobalt(II) chloride hexahydrate is dissolved in 50.0 ml of 4 M HCl, and heated to 80°C in a cuvette having 1.00 cm path length. At this temperature, the percent transmittance of the solution at 690 nm is measured to be 48.0%. What is the molar mass of cobalt(II) chloride hexahydrate? Select one: a) 129.84 g/mol b) 237.93 g/mol c) 58.93 g/mol d) 165.87 g/mol
answer qeustions please
Show all work for full credit. 1. Complete the following table. For each of the hydrates: 1) write the chemical formula; 2) calculate the formula mass; and 3) calculate the mass percentage of water. Hydrate Chemical Formula Fomula Mass Mass % Water Nickel(II)chloride hexahydrate Cobalt(II) chloride hexahydrate Copper(II)sulfate pentahydrate 2. A student dehydrated an unknown hydrate. The mass of the compound was initially 4.139. After heating, the mass was 3.52 g. a. Calculate the mass percentage of...
Cobalt (II) chloride exists in two hydrated forms, the dihydrate and hexahydrate forms. A chemist grabs cobalt (II) chloride hexahydrate from the shelf and wants to dehydrate the salt in the same manner you used in this experiment. If 5.00 g of the hexahydrate were heated to drive off waters of hydration, how many grams of the anhydrous salt would remain?
Can you do this chart using Cobalt (II) chloride please
104 B. Identifying Hydrates Is Solution of Residue Same Color as Solution of Original Compound? (Y/N) Color and Texture of the Residue after Heating Is the Com pound a Tru Hydrate? (Y/N) Does Water Appear with Heating (Y/N) Color before Heating Compound Being Tested
What is the name of [Co(en)2(H2O)2]Cl2? Diaquadi(ethyldiamine)cobalt(II) chloride Diaquadiethylcobalt(III) chloride Cobalt(II)diaquabis(ethylenediamine) chloride d Diaquabis(ethylenediamine)cobalt(II) chloride Diaquadiethylcobalt(II) chloride
0.0185 mol of hydrates magnesium sulfate MgSO4 x H2O has a mass of 4.56g. Calculate the value of x,the number of moles of water crystallization in the hydrated salt.
6. a. What is the percent by mass of water in iron(II) sulfate heptahydrate, FeSO4•7H2O (or what percent of the molar mass of FeSO4•7H2O is due to the waters of crystallization)? b. What mass due to waters of crystallization is present in a 3.38-g sample of FeSO4•7H2O?
Determine the Co concentration of the solution formed when 5.00 grams of cobalt(II) nitrate hexahydrate (CO(NO3)2:6H,0) is dissolved in 550 mL of water? Select one: a. 0.0172 b. 0.0312 c. 291 d. 0.0624 O
If you dissolved 5.0g of nickel (II) chloride hexahydrate in 20mL of 2.0 M ethylenediamine to produce tris(ethylenediamine) nickel (II) chloride and water, which reactant is the limiting reagent?