1. What is the concentration of ethanol (C2H6O) solution that was prepared by dissolving 50.500 g of ethanol into water to a final volume of 750.0 mL? Assume the solution has a density of 1.20 g/mL. % (m/m) = \. 20(9/mi) x 750lmL) =9009 7-m/m) mass OF Solute (cthand) ES0-S 9 X 100 % 9009 a. =S.61% mass of Soluticn b. M Molar mass f cthonol 2. Consider the following chemical equations. Predict if the following solutions would conduct electricity weakly, strongly or not at all. a) KBr(s)→ K* (aq) + Br-(aq) Electicity Strong1y b) NH;(aq) + H20(1) = NH (aq)+OH-(aq) Elcctricity Strongly c) CH1206(s) → C,H1206(aq) hot at all

Q: What is the mass in grams of potassium dichromate(K2Cr2O7) are required to prepare a 350 cm3…

A: Given :- volume of solution = 350 cm3  molarity of potassium dichromate (K2Cr2O7) solution = 5.16 M…

Q: 1. A blood serum sample is analyzed and found to contain 102.5 µg Ca²*/mL serum. The density of the…

A: 3) Given that: Molarity of Cr3+ = 0.125 M Molarity of MnO4- = 0.200 M Volume of MnO4- = 12.00 mL

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Q: Molecular Weight of Zinc Sulfate Heptahydrate 287.6 g/mol 7.199 Mass of Zinc Sulfate Heptahydrate…

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Q: 150 140 KI 130 120 110 100 NANO3 90 80 70 60 50 NH&CI KCI NaCi 40 30 20 10 KCIO3. Ce2(SO4)3 0 10 20…

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Q: A mixologist diluted 15.00 mL of ethanol solution with a concentration of 40.0% (alcohol by volume)…

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Q: A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and…

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Q: What mass, in grams, of a solution containing 5.00% by mass of potassium iodide, KI, contains 308.00…

A: Given data : % by mass = 5.00 % Mass of KI = 308.00 mg = 0.308 g (1000 mg = 1g)

Q: Properties of Solutions Homework

A: Since you have posted multiple questions, we are entitled to answer the first question only.

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Q: a. How many mililiters of 53.4 M (10.4) wt% NaOH with a density of 1.52 (t0.01) g/mL will you need…

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Q: A 0.2121-g sample of pure NazC,O, (134.00 g/mol) was titrated with 43.31 mL of KMNO4. What is the…

A: Given, mass of Na2C2O4 =0.2121 g moles of Na2C2O4 =0.2121 g132 g/mol=1.58 ×10-3 mol Volume of KMnO4=…

Q: The quotient of 12.987g divided by 20.0cm^3

A: Given,12.987 g divided by 20.0 cm3

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Q: calculate the mass percent of your solution. show your calculations

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Q: calculate the number of mmol in 2.0 mL of thionyl chloride MW: 188.97 g/mol Density: 1.64 g/ml

A: Given: The volume of thionyl chloride = 2 mL The density of thionyl chloride = 1.64 g/mL The molar…

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Q: calculate the composition - mass/mass%  of 46.8g Kcl per (6.00x10^2 ml solution (d=1.14g/ml) ___…

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Q: A sample of pure acetyl salicylic acid had a mass of 0.268 grams. It was dissolved in NaOH and…

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Q: What is the mass percent (m/m) of NaCl in a solution made by dissolving 5.16 g of NaCl in 79.9 g of…

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Q: Price the Prescription using the Professional Fee method. Rx Potassium chloride 40 mEq NaCl 30 mEq…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.