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Basic Analytical Chemistry

alibri (Body) 12 A A Aa v AaBbCcDc AaBbCcDc AaBbC AABBCCC AaB AABBCCD IU abe x, x A ab T Normal T No Spac. Heading 1 Heading 2 Title Subtitle Font Paragraph Styles 3 6 IZICIt iniED 10 11 12 13 I 14 I- 15 16 . Chemical Equation Write a balanced equation that describes each of the following chemical reaction. 1. Acetylene gas, C2H2, burns in air forming gaseous carbon dioxide and, CO2, and water. Answer: 2C2H2 + 502 → 4CO2 + 2H20 (double displacement/Combustion reaction) 2. MnO2 + KOH + O2 → H20 + K2MNO4 3. FeCl2 + Cl2 → FeCl3 English (United States) Accessibility: Good to go a ENG REDMI NOTE 10 PRO | JHANG 01/06/2022 15: 12

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An additive that can keep a compound, mixture, or solution from changing its form chemical nature. A. antioxidants b. Shock absorber c. Stabilizer d. Perservative

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After heating 2.000 g of MgSO4.7H2O to constant mass, the remaining residue in the crucible weighs 0.978  g. Using the data above , calculate the mass of water lost. After heating 2.000 g of MgSO4.7H2O to constant mass, the remaining residue in the crucible weighs 0.978  g. Using the data above , calculate the mass percent of water in the hydrate. 16 AND 17 PLEASE

A chemist adds 0.30 L of a 1.7M nickel(II) chloride (NiCl,) solution to a reaction flask. Calculate the mass in grams of nickel(II) chloride the chemist has added to the flask. Round your answer to 2 significant digits. x10 Submit Assignr Continue 2022 McGraw Hill LLC. All Rights Reserved. Terms of Use Privacy Center Accessi IMG-6097.jpg IMG-6096.jpg IMG-6095.jpg IMG-6099.jpg IMG-6098.jpg MacBook Air 80 F10 F11 F7 F8 F9 F5 F6 F3 F4 F1 $ % & 3 4 5 6 7 8 * 00

Please answer question number 2 based on the the data table.

B. Density of Liquid 1. Obtain a sample of distilled water (any quantity of your choice) anddetermine its mass and volume. Record your data on table 3 in theexperimental report 2. Calculate the density of the water sample using equation 1. Substance  Density (g/mL) Substance  Density (g/mL) Aluminum 2.7 Lead  11.3 Brass 8.4 Zinc 7.1  Copper 8.9 Cork 0.26 Tin 7.3 Silver 10.5 Bone 1.80 Rhodium 12.4 Iron 7.9 Platinum 21.45

18. A 250.0 kg sample of ore contains 5.91 micrograms of gold. What is the concentration of gold in appropriate mass/mass units (i.e. %, ppm, etc)? Group of answer choices A. 23.6% B. 23.6 ppm C. 23.6 ppb D. 23.6 ppt

Imagine you and your friends are making hot dogs. A complete hot dog consists of a frankfurter and a bun. At the store, you buy four packages of eight frankfurters and three bags of 10 buns. 1. How many hot dogs can you make? 2. Which ingredient limited the number of hot dogs you could make? 3. Which ingredient will you have leftovers of?

What are the possible sources of error when reacting sodium bicarbonate and hydrochloric acid within an evaporating dish over wire gauze over a bunsen burner? Procedure of the lab down below.

X Macmilla X ck Course M X Submit Answer Sections X /index.html?deploymentid=5735112480241329813180832311&elSBN=9781305862883&id=1707786042&snapsh olchlometry of Reactions: Gram to Gram: This is group attempt 1 of 10 References HOMEWO X Use the References to access Important values if needed for this question. According to the following reaction, how many grams of potassium phosphate will be formed upon the complete reaction of 23.3 grams of phosphoric acid with excess potassium hydroxide ? potassium hydroxide(aq) + phosphoric acid(aq) →→→ potassium phosphate(aq) + water(1) grams potassium phosphate MindTap X Autosaved at 6:23 PM MacBook Air Gatoms to

1. A candle is placed on one pan of a balance, and an equal weight is placed on the other pan. What would happen if you lit up the candle and waited for a while?. 2. Suppose the candle was placed in a large, sealed jar that allowed it to burn for several minutes before running out of oxygen. The candle and jar are balanced by an equal weight. In this situation, what would happen if you lit up the candle and waited? Gizmo Warm-up Burning is an example of a chemical reaction. The law of conservation of matter states that no atoms are created or destroyed in a chemical reaction. Therefore, a balanced chemical equation will show the same number of each type of atom on each side of the equation. To set up an equation in the Chemical Equations Gizmo, type the chemical formulas into the text boxes of the Gizmo. First, type in "H2+02" in the Reactants box and "H20" in the Products box. This represents the reaction of hydrogen and oxygen gas to form water. Reactants H2+O2 2. Based on what you…

D ← Chapter 3 Homework Question 12 of 14 View Policies Current Attempt in Progress Jud AUTOS Save for Later < 7 0 Chapter 3 Homework: Allie Burt 13 mol Cu/mol Zn education.wiley.com Ć Prince's metal, a form of brass which looks like gold, is a mixture of copper and zinc. Prince's metal is 75% copper and 25% zinc by mass. What is the mole ratio of these metals in Prince's metal? WP NWP Assessment Player Ul Application -/1 = : Attempts: 0 of 3 used Submit Answer Question 3 Multipart Question 4 Multipart Question 5 Multipart Question 6 Multipart Question 7 Multiple Choice Question 8 Numeric Fill in the Question 9 Numeric Fill in the Units Question 10 Multiple Choice Question 11 Multiple Choice Viewing Que Math Fill in the Bl Question 13 Numeric Fill in the

Determine the mass in grams of 1.6 x 10-3 mol glucose, CsH12O6 TARTING AMOUNT ADD FACTOR ANSWER RESET *( ) %3D 6.022 x 1023 12.01 0.29 180.18 0.13 9.6 x 1020 1 1.6 x 10-3 84.18 g C6H12O6 mol CoH12Oe g CeH12O6/mol molecules CH½O6

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The concept of determining which reactant is limiting and which is in excess is akin to determining the number of sandwiches that can be made from a set number of ingredients. Assuming that a cheese sandwich consists of 2 slices of bread and 3 slices of cheese, determine the number of whole cheese sandwiches that can be prepared from 36 slices of bread and 51 slices of cheese. number of sandwiches: Which of the two ingredients limits the number of sandwiches that can be made? slices of cheese slices of bread What quantity of the ingredient in excess remains? Question Source: McQuarrie, Rock, And Gallogly 4e - General Chemsitry | Publisher: University Science Books NA stv Aa MacBook Air 80 000 D00 DD F3 F4 F5 F6 F7 F8 F9 F10 F11 F12

answer chloroform answer 11 2. A stopper was found to have a mass of 5.06 g. When placed in a graduated cylinder containing 45.2 mL of water, the volume of stopper and water was found to be 49.4 mL. Calculate the density of the stopper. answer 3. A chemist was given four unidentified, water-insoluble cubes measuring 1 x 1 x 1 cm and asked to arrange these substances in order of their increasing density. These cubes were labeled A, B, C, and D As a reference, the chemist was also given the following liquids, whose densities in g mL at 20 °Care given below. water 0.9982 nitromethane 1.1371 toluene 0.8669 chloroform 1.4832 The chemist added one of the four substances to one of the liquids and observed whether the substance floated or sank. By repeating this procedure with the other substances and liquids, he was able to make a series of observations about the relative densities of the substances and the liquids. Use the following selected observations to arrange the four unknown…