How many grams of urea a ((NH,),CO)m must be added to 489 g of water to give a solution with a vapor pressure 2.77 mmHg less than that of pure water at 30 °C? Round your answer to 3 significant digits. Note: Reference the Vapor pressure of water (H₂O) at selected temperatures table for additional information. (NH,),CO-| g X 18民政□ ■ 〗 ∞ olo A

Q: Give a Carrect formula between Ca (9) Ca₂1 (b) Calz (e) C92 13 C9312 and I A

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Q: What steps do I take to convert 97.0111 x 1014 nm3 to cL?

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Q: In Example 2-1, we established that the mass ratio of magnesium to magnesium oxide is 0.455 g…

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A:

Q: 1. Using the various group classifications from the periodic table, assign all appropriate labels to…

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Q: Which of the listed elements is most metallic?(a) Al (b) N (c) P (d) O

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Q: 1)How many outer-shell electrons do each of the atoms have? Rn Ga C

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A:

Q: 90. Write isotopic symbols in the form X-A (for example, C-13) for each isotope.(a) the iodine…

A: Since we only answer up to 3 sub-parts, we'll answer the first 3. Please resubmit the question and…

Q: 66. Which element do you expect to be most like magnesium? Why?(a) potassium(b) silver(c) bromine(d)…

A: Magnesium = Its atomic number is 12, and present in Group 2 in the periodic table.

Q: Consider the balanced reaction 6 A + 5 B → 7 C + 7 D. If 6.65 moles of D (MW = 29.59) are produced,…

A:

Q: 31. What is the empirical formula of the compounds with the following molecular formulas? (a)…

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Q: 67. Which pair of elements do you expect to be most similar? Why?(a) Si and P(b) Cl and F(c) Na and…

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Q: what makes thw difference between the isotopes of an element?

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A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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Q: Name the following species: (a) BrO, (b) HCO,, and (c) SO?-.

A: (a) The given ion is BrO4-. So, the name of this ion is perbromate ion.

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Q: Classify each of the following fifth-row elements as a metal, a metalloid, or a nonmetal: (a) Y (b)…

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Q: Give the systematic name for the following substance: NC14

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Q: What 19K, 12 Mg, 13Al elements give with go The formulas of the compounds which are- well shown…

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Q: K(s) Ca(s)

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Q: 6. Which row in the table is INCORRECT? (a) (b) (c) (d) (e) Symbol 79Se2 P 107 Ag+ 55Mn SV 130-…

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Q: 4oloctron uminum lóA AlT ఆంం canfiquratioA Ale 3+ lán Al

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Q: The hypothetical element Labradorium, Lb, has two stable, naturally occurring isotopes: 100Lb with a…

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Q: In the ammonia (NH) molecule of the figure, the three hydrogen (H) atoms form an equilateral…

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Q: Calalate te mass of Fes formed when 9.42 9 of Fe reacts with 8.505 oks Fe Cs) +2S Cs)- ) Feszcs)

A: Mass of Fe= 9.42 g Mass of S =8.50g

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Q: Choose the correct answer. The difference between the massnumber of an isotope and its atomic number…

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Q: + 2H₂O

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Q: A. Write the Xnotation for each atomic depiction: (a) Z 18e 18p* 20nº (b) 25e 25p* 30n (c) 47e 47p*…

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Q: Is 1s22s22p6 the symbol for a macroscopic property or a microscopic property of an element? Explain…

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Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.