A homogeneous mixture of a solute in solvent is called a. a coprolite b. an elec

Question

A homogeneous mixture of a solute in solvent is called a. a coprolite b. an electrolyte c. a solution d. a ionic e. a material Molarity, M, is defined as a. moles of solute dissolved in I mol of Covent. b. moles of solute dissolved in I kg of solvent. c. moles of solute dissolved in I L solvent. d. moles of solute dissolved in I L solution e. moles of solute dissolved in the solution. What are the units of molar concentration, M? a. mol/L b. g/L c. mol/kg d. ppm e. mol/mL What volume of 6.0 M NaOH contains 0.15 mole of NaOH? a. 500 mL b. 50 ML c. 5.0 mL d. 25 mL e. 0.050 mL The oxidation number of oxygen in carbon dioxide is a. +2 b. -2 f. +4 d. -4 e. +1 During a(n) process, energy is transferred to the system form the surroundings. a. exothermic b. endothermic c. thermodynamic d. thermochemical e. physical When solid sodium hydroxide (NaOH) pellets are dissolved in water, the temperature of the water and beaker rises. This is an example of a. an exothermic process. b. an endothermic process c. a combustion reaction d. a thermodynamic cycle e. all salvation processes.

Explanation / Answer

11.

the given statement is definition of solution

so option C is correct answer.

12.

Molarity = no fomoles dissolved in 1L solution

option d is correct answer

13.

Molar concentration is nothing but a mol /L

option a is correct answer

14.

Molarity = moles /L

6.0 M = 0.15 mol / Volume in Liters

volume = 0.15 / 6.0 = 0.025 L

V = 0.025 L x 1000 = 25 mL

option d is correct

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