I WILL TIP 60/WK IF THIS ONE (TEST TRIAL) IS
CORRECT. WILL TIP 20 FOR THIS ONE. My notes:
Lab 1: Crucible alone- 88g
Crucible with substance- 93g
Crucible after being heated- 96.289g
Lab 2: Crucible alone- 88g
Crucible with substance- 93g
Crucible after being heated- 91.327g
Green substance turned black.
Lab 3: Original temp- 21.5 C. 1.00
Reaction immediately boiled when mixed. Stopped
boiling at 25.7 C. Pressure increase to 1.70
A syringe placed in the closed flask measured at 92.4 mL.
Lab 4: A green solid formed when mixed. Experiment 1: Perform a Synthesis Reaction
Lab Results
1. Record the following values in the table below.
(a) mass of empty crucible (g)
(b) mass of crucible and Mg (g) before heating 88g
93g Data Analysis
1. Record the following values in the table below.
(a) mass of the "unknown" product and crucible after heating (g)
(b) change in mass (g) 96.289g
3.289g 2. Where did the extra mass come from? (Hint: The final product is magnesium oxide) 3. Assuming all the magnesium reacted in the reaction, what is the total mass of product
formed? Experiment 2: Perform a Decomposition Reaction
Data Analysis
1. What was the change in mass of the contents in the crucible? Compare the mass after
heating to the mass before heating. 2. The color change of the copper (II) carbonate hydroxide hydrate as it was heated can help
identify the product. Use the following list of copper compounds to identify the product.
CuCO3 - light green powder
Cu(OH)2 - blue green powder
Cu2O - reddish brown crystals
CuO - black powder CuO, as the product turned black. 3. Given that mass was lost from the copper (II) carbonate hydroxide hydrate during
heating, in this decomposition reaction, how many moles of solid product were
produced? The molar mass of the solid product is 79.545 g/mol (number of moles = mass
(g) / molar mass (g/mol)). 4. Copper carbonate hydrate produces 1 mole of water (MM = 18.015 g/mol) for every mole
of solid product (MM = 79.545 g/mol) produced. Given that 3.327 g of solid product
were produced during the reaction, how many grams of water were released as water
vapor? (number of moles = mass (g)/ molar mass (g/mol)). Experiment 3: Peform a Single Displacement Reaction
Lab Results
1. What observations did you make when the hydrochloric acid and zinc were combined? Data Analysis
1. What do these observations tell you about this single displacement reaction? Experiment 4: Perform a Double Displacement Reaction
Lab Results
1. Describe what happens when solutions of NaOH and NiCl2 are combined. Data Analysis
1. What ions are present in an aqueous solution of NiCl2? 2. What ions are present in an aqueous solution of NaOH? Conclusions
1. Write a balanced equation for the synthesis reaction that occurred. 2. Write a balanced equation for the decomposition reaction that occurred. 3. Write a balanced chemical equation for this single displacement reaction. 4. Write a complete, balanced equation for this double displacement reaction. (Hint: The
solid is a compound of Ni 2 ions and hydroxide ions.) Write the complete molecular equation rather than the net ionic equation.

• 1497840078-Lab Help.docx

SuperTutor

(15)

Status NEW Posted 19 Jun 2017 02:06 AM My Price 8.00

-----------

Attachments

file 1497840078-Solutions file.docx preview (56 words )

S-----------olu-----------tio-----------ns -----------fil-----------e -----------Hel-----------lo -----------Sir-----------/Ma-----------dam----------- T-----------han-----------k y-----------ou -----------for----------- yo-----------ur -----------int-----------ere-----------st -----------and----------- bu-----------yin-----------g m-----------y p-----------ost-----------ed -----------sol-----------uti-----------on.----------- Pl-----------eas-----------e p-----------ing----------- me----------- on----------- ch-----------at -----------I a-----------m o-----------nli-----------ne -----------or -----------inb-----------ox -----------me -----------a m-----------ess-----------age----------- I -----------wil-----------l b-----------e q-----------uic-----------kly----------- on-----------lin-----------e a-----------nd -----------giv-----------e y-----------ou -----------exa-----------ct -----------fil-----------e a-----------nd -----------the----------- sa-----------me -----------fil-----------e i-----------s a-----------lso----------- se-----------nt -----------to -----------you-----------r e-----------mai-----------l t-----------hat----------- is----------- re-----------gis-----------ter-----------ed -----------onÂ----------- th-----------is -----------web-----------sit-----------e. ----------- H-----------YPE-----------RLI-----------NK -----------&qu-----------ot;-----------htt-----------p:/-----------/wo-----------rkb-----------ank-----------247-----------.co-----------m/&-----------quo-----------t; -----------\t -----------&qu-----------ot;-----------_bl-----------ank-----------&qu-----------ot;----------- -----------Tha-----------nk -----------you----------- -----------

Not Rated(0)

• Buy Answer