Calculate the formal concentration of a sodium acetate solution prepared by diluting 45.0 mL of a solution containing 25.0 ppm sodium acetate (NaC_2H_3O_2, FM=82.03 g/mol) to a total of 0.500 liters o Calculate the molar concentration of a sodium acetate solution ...
Calculate the mass of barium chloride you need to make a 0.300 M barium chloride solution with 100.0 grams of water. Calculate the mass of the precipitate formed when 25 mL of a solution of sodium sulfide (0.25 M) reacts with 150 mL of a solution of silver nitrate (0.11 ...
The solute concentration can be determined by dividing the amount of solute by the total amount of solution. With this general definition, we can express the solute concentration in multiple ways. One way is to express it in terms of mass fraction...
\(\mathrm{17 = mass\enspace in\enspace g\enspace of\enspace sodium\enspace azide}\) In order to make 100 mL of a 17% sodium azide solution, you would need to weigh out 17 grams of sodium azide and then add water until the final volume is 100 mL. You can make use of this eq...
Calculate the freezing point of a solution that contains 8.0 g of sucrose {eq}\rm (C_{12}H_2O_{11}) {/eq} in 100 g of {eq}\rm H_2O {/eq}. K for {eq}\rm H_2O {/eq} is 1.86C/m Sucrose: Sucrose is a type of sugar that ...
What mass of MgCl_2 should be dissolved in 75.0g H_2O to produce a solution that is 38.5% solute by mass? A 300mL solution was made by dissolving 5.0g of MgCl_2 in water. What is its molarity? The molarity of a 2% solution of NaCl is 340 mmol/L. The molecular weight of NaCl...
In mathematics, the logarithm is the inverse of the exponential function. When b is raised to the power of y is equal to x, then the base b logarithm of x is equal to y: $$b^y = x \Longleftrightarrow y = \log_b{x} $$ For example, ...
Answer to: A sample of aluminium has a mass of 6.3 g, calculate: 1. the number of mole of aluminium present. 2. the number of atoms of aluminium...
Calculate the volume of 3 M HCl needed to change the pH of 75 mL of the undiluted buffer solution by one pH unit (buffer capacity). Undiluted buffer solution is prepared by mixing 100 mL of 1.0798 M acetic acid with 100 mL of 1.000 M ...
The concentration expression being referred to here is the osmolarity of the solution which can be calculated by multiplying the molarity of the solution by the number of particles one unit of the solute produces once dissolved in the solvent....