ZuoTi.Pro
Question
please answer all the questions.
Nitroglycerine (C3H5N309) decomposes explosively on its own (no oxygen added), producing carbon dioxide, water vapor, nitroge
4. Describe the placement of the crucible lid on the crucible when heating the magnesium. Why is it important that this be do
science   chemistry   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

4 ) When heating the magnesium in crucible  

Place the crucible securely on the clay triangle. Set the lid slightly off-center on the crucible to allow air to enter but to prevent the magnesium oxide from escaping.

a) there are 10 molecules of water of hydration surround each molecule of sodium carbonate. Explanation: when the soluble com6 Molar Mass of Na, coz. 10460 - 2(0a) + c + 3(0) + to +1) +0. 2 (22.99) + (12.0) + 3 (15.99).+ 10 [2C1iol) + 15: = 7 45.98 +

0 0
Add a comment
Know the answer?
Add Answer to:
please answer all the questions. Nitroglycerine (C3H5N309) decomposes explosively on its own (no oxygen added), producing...
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for? Ask your own homework help question. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • Upon heating, sodium bicarbonate decomposes into sodium carbonate, carbon dioxide, and water vapor according to the...

    Upon heating, sodium bicarbonate decomposes into sodium carbonate, carbon dioxide, and water vapor according to the following chemical reaction: 2 NaHCO3 (s) →→ Na2CO3 (s) + CO2 (g) + H2O (g) If the initial mass of sodium bicarbonate is 4.859 g, how much sodium carbonate should be produced? a. 3.066 g b. 2.211 g c. 6.131 g d. 4.859 g

  • please answer all, and type please Problems and questions (show all calculations, correct significant figures and...

    please answer all, and type please Problems and questions (show all calculations, correct significant figures and units) 1. Why is it important to test the crucible for cracks before heating it? 2. Write the correct balanced equation for the dehydration (removal of water) of the magnesium sulfate hydrate obtained in Procedure B of this experiment. 3. How many moles are in 70.0 grams of potassium hydroxide? 4. A compound is formed when 0.300 moles of barium combine with 0.600 moles...

  • yes please all i need help with all questions pls step by step w licble/lid wt...

    yes please all i need help with all questions pls step by step w licble/lid wt Crucibe / lid 3424 7 unksample 39,679 wt crucible / lid unksam alt heating - ut sample 5.43 ut pt by sample Wt of Oxygen in Sample 3.60g exp the t 2160g x 100 47.9 of oxygen 5.43 1. Predict and balance the following reactions (assume they all go) solid sodium metal plus nitrogen b. chromium(III) chlorate plus beat c. ferric carbonate plus beat...

  • please answer all and show all the work. thanks Show the correct number of significant figures...

    please answer all and show all the work. thanks Show the correct number of significant figures and units for all measurements and calculations. A. Empirical formula Mass of crucible and lid 14.59289 14.95279 Mass of crucible, lid, and magnesium Appearance of magnesium ribbon: Appearance of product: 15, 11999 Mass of crucible, lid, and product Calculations (Show your work) Mass of magnesium ribbon (show calculations) Mass of magnesium oxide product (show calculations) Mass of oxygen (show calculations) Number of moles of...

  • Please answer questions 1-7 and fill out the equation at the top. Thanks! LAB-Stoichiometry/Empirical formula Name...

    Please answer questions 1-7 and fill out the equation at the top. Thanks! LAB-Stoichiometry/Empirical formula Name Purpose: To predict the mass of magnesium oxide (MgO) formed by reacting To determine actual yield, theoretical yield and percent yield of pro Balance the equation: Moterials: Mg ribbon, Bunsen burner, balance, crucible tongs, crucible w/id etc- Procedure: place a check after you perform each step 1Go to the scale, check for zero. Record the mass of the crucible +lid and d it below...

  • els response Question 4 of 5 estion 4 20 points Save Answer Metal carbonates decompose to...

    els response Question 4 of 5 estion 4 20 points Save Answer Metal carbonates decompose to form metal oxides and carbon dioxide. An experiment was done to determine the composition of a mixture of sodium chloride and sodium carbonate. A sample of the mixture with a mass of 5.05 grams was heated until gas production stopped. After the reaction, the sample had a mass of 4. 17 grams. Assuming that sodium chloride does not react and that the decrease in...

  • Express your answer with the appropriate units. 1. How many milliliters of oxygen gas at STP...

    Express your answer with the appropriate units. 1. How many milliliters of oxygen gas at STP are released from heating 2.05 g of mercuric oxide? 2HgO(s)→2Hg(l)+O2(g) 2.How many grams of iron(III) carbonate decompose to give 61.2 mL of carbon dioxide gas at STP?Fe2(CO3)3⟶ΔFe2O3(s)+3CO2(g) 3. How many milliliters of oxygen gas at STP are released from heating 2.05 g of mercuric oxide? 2HgO(s)→2Hg(l)+O2(g) 4.Assuming constant conditions, how many milliliters of chlorine gas react to yield 2.00 L of dichlorine trioxide?Cl2(g)+O2(g)→Cl2O3(g) 5.Assuming...

  • Experiment 9- Decomposition of Baking Soda A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O...

    Experiment 9- Decomposition of Baking Soda A. mass of H2CO3 gas released, (H2CO3 decomposed into H2O + CO2)? B. mass of NaHCO3 in unknown mixture? C. mass of NaHCO3 in unknown mixture? D. mass of KCL in unknown mixture? CURCU ILI U ULICOS MOLLE (Part 2) Percent of NaHCO3 in an Unknown Mixture 1) Weigh out approximately 1 g of the unknown sample into your cruci 2) Repeat the steps of the previous procedure. ne steps of the previous procedure....

  • please answer all question and type please Problems and questions 1. Balance the following equations: -...

    please answer all question and type please Problems and questions 1. Balance the following equations: - Na + H₂O NaOH + H2 PbO + _NH Pb + _Ny +_ H_O CH. +_ - _CO+ H2O a) — _NayCO; + _Mg(NO3)2 - > MgCO, + NaNO, 2. Write the correct balanced equation for each of the following reactions. Include the proper subscripts and include the state of matter for all reactants and products. Write the type of reaction on the blank...

  • Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle...

    Problem Set 7 Stoichiometry Calculations Name: Date: Lab Section: General Instructions: Complete the following problems, Circle answers and show all work on separate sheet(s) of paper. 5 problems will be chosen randomly for assessing a score on this assignment. Assignment is due at the end of the lab period. 1.) 5.0 g of magnesium metal is burned in excess oxygen to produce magnesium oxide. (a) Write a balanced chemical equation for this reaction with the correct phases of all substances...

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT