X represents the nunber of moles of water present as hydrate in the salt.
for example,. copper sulfate pentahydrate i. e. CuSO4. 5H2O
means X= 5 moles of water present as hydrate
What is the meaning of the numeral represented by X in the general formula for a...
what is the meaning of the numeral represented by x in the general formula for a hydrate salt.xh2o? how would you tedt a colorless crystalline compound to determine if it was a hydrate?
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...
The general formula of cellulose may be represented as (C6H10O5)x. If the molar mass of a molecule of cellulose is 400,000, what is the estimated value of x?
Question 37 a) What is the general meaning (not just as it applies to enzymes) of the phrase "optimum conditions"? b) Why do most enzymes exhibit a narrow range of optimum conditions, including pH, temperature, and salt concentration?
Laboratory 12 Report Sheet - Lab 12 B. Formula of a Hydrate B.1 Mass of crucible B.2 Mass of crucible and salt (hydrate) B3 Mass of crucible and salt (anhydrate) after first heating after second heating (optional) 25.10 26.38 2573 Calculations B.4 Mass of salt (hydrate) B5 Mass of salt (anhydrate) OR B.6 Mass of water lost B.7 Percent water (Show calculations.) _mole B.8 Moles of water (Show calculations.) mole B.9 Moles of salt (anhydrate) (Show calculations.) B.10 Ratio of...
please answer both questions and explain your answer and show work!! thanks!!!!! ? H20 ). After heating, the 3. A student heats 4.20 g of nickel(II) acetate (?)-hydrate [Ni(C2H3O2)2 anhydrous salt weighs 2.98 g. What is the formula for the hydrate? 4. A student heats 4.20 g of calcium sulfate (?)-hydrate. After heating, the anhydrous salt weighs 3.94 g. What is the formula for the hydrate?
Pre-lab Questions for Experiment-7 Hydrates and the Determination of the Formula of a Hydrate 1) What is the color for anhydrous salt of copper (ID) sulfate (CuSO.)? What is the color for ionic hydrate compound of copper (II) sulfate pentahydrate (CuSO4 5H20)? 2) How would you test a colorless rystalline compound to determine if it was a hydrate? 3 1.2008 g of a hydrate of CuSO4" XH O after heated has a mass of 0.7676 g. Calculate the mass percent...
For a string s ∈ {0, 1} let denote the number represented by in the binary * s2 s numeral system. For example 1110 in binary has a value of 14 . Consider the language: L = {u#w | u,w ∈ {0, 1} , u } , * 2 + 1 = w2 meaning it contains all strings u#w such that u + 1 = w holds true in the binary system. For example, 1010#1011 ∈ L and 0011#100 ∈...
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...
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....