Hey, holidays is over. Time to get back to work.
whats the answer to this one
find the concentration of hcl in g hcl/kg
Naoh + Hcl---> b +c
2.991 mol 25.00mL
Density=0.952g/ml
also Hcl=36.46g/mol
I got approx 4.58 x 10^3 g/mol of the top of my head
i better write it out properly
Naoh=2.991 mol
Hcl=25.00 Ml, Density =0.952g/ml, mm=35.46g/mol
To find the concentration of HCl in g HCl/kg, we need to use the given information and perform a series of calculations. Here's how you can do it:
1. Start by calculating the amount of HCl in moles (c) using the volume and concentration of NaOH. According to the balanced equation, 1 mol of NaOH reacts with 1 mol of HCl. Given that the volume of NaOH (b) is 25.00 mL and the concentration of NaOH is 2.991 mol, we can write the following equation:
(2.991 mol NaOH / 1 L) x (0.02500 L NaOH) = b mol HCl
(Note: The given concentration of NaOH is given in mol/L, so we convert the volume from mL to L)
2. Next, convert the moles of HCl (c) to grams using the molar mass of HCl. The molar mass of HCl is given as 36.46 g/mol. Multiply the number of moles (c) by the molar mass to get the mass in grams:
c mol HCl x 36.46 g/mol = c g HCl
3. Now, we can find the concentration of HCl in g HCl/kg. We need to convert the mass of HCl to kilograms. Given that the density of the solution is 0.952 g/mL, we can calculate the mass of the solution using the volume of NaOH and the density:
(0.952 g/mL) x (0.02500 L NaOH) = d g solution
Finally, divide the mass of HCl by the mass of the solution and multiply by 1000 to get the concentration in grams HCl per kilogram of solution:
(c g HCl / d g solution) x 1000 = concentration of HCl in g HCl/kg
By following these steps and plugging in the given values, you should be able to find the concentration of HCl in g HCl/kg.