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23 Nov 2019

What is the molarity of NaOH in a solution containing 40.0g of NaOHin 750 mL of solution?
Question options:

53.3 M
0.00133 M
4.00 M
1.33 M
0.0533 M

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Deanna Hettinger
Deanna HettingerLv2
18 Jun 2019
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Related questions

A solution is prepared by mixing 0.275 mole NaOH (40.0g/mole)with 189g H2O (18.0g/mole). Its density is 1.061 g/mL.


Determine:

a) the mass % of NaOH

b) the mole fraction of NaOH

c) the molarity

d) the molality

The final temperature of a mixture of solution prepared bydissolving 2.50 gram of NaOH in 75.0 mL of water (both initially at25 degrees C) increases to 25.5 degrees C. Is this processexothermic or endothermic? What is the enthalpy of solution of NaOHin kJ/mole?

1. You mix 100.0 mL of 1.00 M HCl with 100.0 mL of 1.00 M NaOHin the calorimeter and the initial temperature is 25.0 *C. Thereaction HCl + NaOH --> H2O + NaCl occurs and the finaltemperature is 30.98 *C. The heat capacity of the calorimetercontainer is 100.0 J/*C and the specific heat capacity of theaqueous solution is 4.184 J/g*C. What is the heat of reaction permole of H2O formed? Assume the density of this dilute solution is1.000 g/mL, like water.

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