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A concentrated sodium hydroxide solution is 40.5% NaOH by mass and has a density of 1.53 g/mL at 25°C. What is the molarity of NaOH? a. 8.25 M b. 12.1 M c. 15.5 M d. 19.3 M e. 21.2

Marc and Marie are exact opposites.  Choose the most appropriate adjective to describe Sara or Thomas based upon the information provided about the other person. Write the correct form of the adjective in ONE of the blanks depending if the adjective goes before or after the noun and put an X in the remaining blank.   î    é    è   à   ê   â   ù  ç   ô                          or      e/    a\    o^     i: Adjective bank of possibilities: amusant, beau, bête, bon, conservateur, ennuyeux, généreux, grand, gentil, gros, jeune, intelligent, laid, mince, paresseux, petit, roux, sérieux, sportif, travailleur, triste, vieux Marc est très sédentaire, mais Marie?  C’est une [a5] dame [b5].

Three point charges are at fixed positions on the x-axis, q1 at x = 0, q2 at x = a, and q3 at x = 2a. Find the total electrical potential energy of the system of three charges. Let q1 = q2 = q3 = 2 x 10-6 C and a = 100 m.

A 38 year old female patient taking an oral contraceptive pill who also smokes cigarettes presents to the urgent care with dyspnea, cough and chest pain.  The nurse practitioner should suspect which differential diagnosis?

What is the main reason to ask Veterans about the setting of their work and if they were stated in a combat zone?

Assuming ideal behavior, which of the following aqueous solutions should have the highest boiling point? a. 1.00 m LiBr b. 0.75 m K2SO4 c. 0.50 m Ca(NO3)2 d. 0.75 m NaCl e. 1.25 m C6H12O6

What are the screening recommendations for Veterans when it comes to suicide risk? Choose the best answer. 

Yersinia pestis causes what type of medical condition?

In the bacteria/archaea lab, name an organism that you had to use the oil immersion lens to see.

Two point charges, q1 = `q1` μC and q2 = `q2` μC (1 μC = 10-6 C), are placed on the corners of a rectangle as shown in the figure, where h = `h` m and w = `w` m.   The y-component of the total electric field at the origin O is: Give your answer in units of N/C and round to the nearest whole number. Your answer should be numerical only, don’t type the units. k = 8.99 x 109 Nm2/C2   Hint: Components of vectors can be positive or negative. For example, if a vector is pointing in the negative y direction, then the y-component should be negative. No partial credit for missing a negative sign.