2. An unknown solution shows the following observations. State whether each is a positive or negative test result. NH4 sharp odor PO23- colorless solution white precipitate Fe2+ dark blue color Ca2+ colorless solution Co2- colorless solution

Q: 6. Which statement describes the atoms and mass in a chemical reaction? Oa. The mass and the number…

A: In a chemical reaction, the number of atoms remains same on the both side of the reaction that is…

Q: marble Question 4 1. Write the following equations in words: a) KOH + HCI → KCI + H₂O b) ZnO + H₂SO4…

A: 1. a) When potassium hydroxide (base) reacts with hydrochloric acid (acid) , then potassium chloride…

Q: Answer the following questions and submit them along with your Report Form. Write an equation for…

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Q: how many milliliters of of a 1.83 M NaOH solution will produce 39.51 g Ag2O?

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Q: 1) What do we mean when we say a chemical reaction is balanced? (Several choices can be correct.)…

A: A chemical equation which has an equal number of atoms of each element in the reactants and the…

Q: Calculate the molarity of a solution prepared by dissolving 21.83 grams of Naci (OR "Na" CI) to…

A: Given, Mass of NaCl is 21.83 g. The volume of the solution is 0.975 L. Molarity can be calculated…

Q: How many moles of NaOH are in 335.9 mL of 2.97 M NaOH?

A: Given that, Volume of solution = 335.9 mL = 0.3359 L Molarity of NaOH = 2.97 M Then, Moles of NaOH…

Q: Combustion of 6.60 mg of an unknown acid produces 11.8 mg carbon dioxide and 4.82 mg of water. If…

A: First calculate the number of moles for C, H, and O. Use those moles and mass to calculate the molar…

Q: Zinc and Hydrochloric acid Observations: Molecular Total Ionic

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Q: Sodium chloride and sodium carbonate Total molecular Total ionic Net ionic

A: Here both the actions are same (sodium).  So there can't be any displacement reaction.

Q: What is the molar mass of a monoprotic acid if 35.90 mL of 0.0735 M NaOH is required to neutralize a…

A: Answer: This question is based on acid-base titration where moles of base needs to be converted into…

Q: Aqueous hydrochloric acid (HCI) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Solution stoichiometry involves the calculation of concentration of solutions in the given…

Q: 0.969 molar NaOH. Analysis of the collected data resulted in a heat transfer of 2797 J during…

A: The question is based on the calculation of heat of neutralization. we are reacting a strong acid…

Q: Deionized water is added to a 138.0 mL sample of 1.103 M oxalic acid to dilute it to 0.436 M. What…

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Q: An acid, HEI, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

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Q: Part A What is the concentration of K+ in 0.15 M of K2S? Express your answer to one decimal place…

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Q: An empty beaker weighs 45.679 g. What is the final mass (in g) of the beaker after the following are…

A: In the given question->weight of empty beaker = 45.679 gmweight of table salt = 2.689 gmweight of…

Q: Complete the following: (i) A redox reaction involves the between reactants, while the…

A: The fill in the blanks are solved by using the general concepts of chemistry.

Q: You have a 0.561 M solution of magnesium chloride. You pour out 389.8 mL. of this solution. How many…

A: Given that:  Molarity of Magnesium chloride (MgCl2) = 0.561M  Volume of solution = 389.8ml =…

Q: 1.50 g of a certain Compound X, known to be made of carbon, hydrogen and perhaps oxygen, and to have…

A: (1)The amount of carbon and hydrogen is calculated from the grams of CO2 and H2O

Q: How many total species there are in sodium citrate

A: Sodium citrate is the sodium salt of citrate ion.

Q: What is the number of moles in 6.6046 g of Lithium?

A: mass of Lithium = 6.6046 gNumber of moles of Lithium = ?Note: molar mass of Lithium = 6.941 g/mol

Q: What happens when a solution of an acid is mixed with a solution of a base in a test tube?

A: When acid is mixed with a solution of base it results in a neutralization reaction. Neutralization…

Q: Which terms are ways of describing concentration

A: Concentration can be described in the following ways(i) Molarity(ii) Molality (iii) Normality

Q: What can be said about strong acids and bases?

A: Acid: Which gives H+ ion in the solution. Base: Which accepts H+ ion in the solution.

Q: How do I count the number of electrolytes that are present in a compound?

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Q: ______ are compound of metal plus nonmetal.

A: Generally metal are electropositive in nature while nonmetals are electronegative in nature. So,…

Q: Determine the normality of bromide ion when 0.771 g of calcium bromide is dissolved in water and…

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Q: A student followed the procedure in this experiment, using 48.60 mL of 0.977 molar HCl and 51.10 mL…

A: Recall the relation between HCl and NaOH HCl + NaOH→NaCl + H2O Now, mole=Molarity×VolumeLFind moles…

Q: Given the following standard curve, answer the questions. See attachment  A) If an unknown solution…

A: The graph reading should be done by sketching the line with given coordinate on X axis and Y axis…

Q: How would the following error change the calculated value of the percent oxalic acid in the radiator…

A: Sodium hydroxide is standardized with a solid which is not hygroscopic that is potassium hydrogen…

Q: How do you find the charge a compound has? I'm new to chemistry, and I'm wondering how you…

A: By seeing a molecule or compound we can figure out the charge as well the the type of electrolyte.

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

A: With datas given  With molar mass of NaNO3, Ca(NO3)2 ,NO3 known mass percentage of NaNO3 is done…

Q: A positive electric charge s is to be adde of 6.25x10^1 and euigu 3.125x10^19 p+. What will be the…

A: Charge on electron = -1.6 × 10-19 C Charge on proton = 1.6 × 10-19 C

Q: Suppose 71.3 g of iron (11) bromide is dissolved in 350. mL of a 0.80 M aqueous solution of silver…

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Q: Item 24: Question A 3.31 x 10-4 M solution of a new drug (273 g mol¹) has an absorbance of 0.750 in…

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Q: A 10.000 g sample of hydrated cerium iodide CeI3∙xH2O is heated in order to drive off the water.…

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Q: If I dissolve one teaspoon of sugar into a cup of water, I can say the sugar is 1 point the

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A: Given that,  Volume of Na3PO4 solution, V= 675 mL Concentration of Na+ ions in solution = 1.50 M…

Q: How many grams of solute are present in 585 mL of 0.780 M KBr? mass of solute: g Incorrect

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Q: A 5.44 g sample of a laboratory solution contains 1.85 g of acid. What is the concentration of the…

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