3+ c. 4+ d. 1- e. 4- 76. What is the predicted formula for a chloride ion? a. Cl7+ b. Cl+ c. Cl- d. Cl3- e. Cl7- 77. What is the predicted formula for a sulfide ion? a. S6+ b. S2+ c. S- d. S2- e. S6- 78.
3. Solid iodine in 1 mL of alcohol is slightly more soluble. Residue still remains on the bottom and alcohol changed to an orange red color. 4. Solid iodine in 1 mL of mineral oil is slightly soluble.
Theoretically speaking, if we use one granule of zinc and one granule of iodine opposed to one granule of Barium Iodide and one granule of Zinc Sulfate, the cost would be $.2123 in total for the elemental reaction and $.9265 for the double replacement reaction. In terms of safety, it is safe to say that the safer thing would be centrifuging since we are
| Chemistry Coursework | How does the concentration of Hydrochloric Acid affect the rate of reaction between Hydrochloric Acid and Sodium Thiosulfate? | | | Initial Planning The aim of my coursework is to investigate the variables that increase the rate of reaction. There are several equations that can be investigated. The main 3 equations are: 1) Hydrochloric Acid + Marble Chips Calcium Chloride + Water +Carbon Dioxide 2HCl (aq) + CaCO3 (s) CaCl2 (aq) + H2O (l) + CO2 (g) 2) Hydrochloric Acid + Magnesium Magnesium Chloride + Hydrogen 2HCl (aq) + Mg (s) MgCl2 (aq) + H2 (g) 3) Hydrochloric Acid + Sodium Thiosulfate Sodium Chloride + Sulfur Dioxide + Sulfur + Water HCl (aq) + Na2S2O3 (aq) NaCl (aq) + SO2 (g) + S (s) + H2O (l) In equation 1, the CO2 produced is monitored over a certain period of time. The more CO2 produced over this time, the higher the rate of reaction.
2 marks 4 Draw the structural formula of Compound G. 1 mark 5 Using the chemical shift correlation for 13C NMR, predict the number of peaks for Compound G and draw in the position of the peaks on the blank spectrum below, annotating each peak with its corresponding structure. (2 marks) 6 Draw the structural formula for 2-chloro but-2-ene. Below this draw a structural formula of an isomer of 2-chloro but-2-ene and name this substance.
To find out N2 you have to determine the mass of water produced in the reaction. This mass is the difference between the mass of initial compound (BaCl2•XH2O) and the mass of anhydrous salt (BaCl2). N2 is the ratio of the mass of the water produced in the reaction to the molar mass of
CHEM 2124 Unit 2 Worksheet 2 1) Why does benzene undergo a substitution reaction with Br2 while cyclohexene undergoes an addition reaction? Addition of bromine to benzene is highly unfavorable because it would result in a non-aromatic product. 2) Which is more stable, cyclobutadiene or 1,3-butadiene? Explain 1,3-butadiene is more stable. Cyclobutadiene is antiaromatic and antiaromatic systems are less stable than their open chain counterparts.
Title: SOME AQUEOUS SOLUTION CHEMISTRY OF COPPER(II)ION Aims: 1. To make the synthesis of Copper(II) Sulfate Pentahydrate and determine the theoretical yield as well as the percent yield of CuSO4.5H2O 2. To observe a series of reactions with copper (II) ions using different reagents. Results & Questions: A. Synthesis of Copper(II) Sulfate Pentahydrate. 1.
What is the balanced chemical equation for the reaction that takes place between bromine and sodium iodide? |a. |Br[pic] [pic] NaI [pic] NaBr[pic] [pic] I |c. |Br [pic] NaI[pic] [pic] NaBrI[pic] | |b. |Br[pic] [pic] 2NaI [pic] 2NaBr [pic] I[pic] |d.
A) sulfide ion B) sulfate ion C) sulfite ion D) bisulfate ion 12. What is the correct chemical formula of tin(IV) cyanide? A) Ti(CN) 4 B) TiC 4 N 4 C) Sn(CN) 4 D) SnC 4 N 4 E) Sn(CN) 2 Page 3 13. The formula for zinc acetate is _____. A) ZnCH 3 CO 2 B) Zn(CH 3 CO 2 ) 2 C) Zn(HCO 3 ) 2 D) Zn(HCl) 8 14.