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A bottle of commercial concentrated aqueous ammonia is labeled 28.89 percent NH3 by mass and density is 0.8960 grams mL. What is the molarity of the ammonia solution?
To find the molarity, first calculate the moles of NH3 in 100g of the solution using the mass percent. Then convert the volume of the solution (1 mL) to liters. Finally, divide moles by liters to obtain the molarity.
What is the molarity of a 3.0 percent hydrogen peroxide H2O2 aqueous solution when the density is essentially 1.0g over mL?
If the density is 1.0 g/ml, one liter of the solution will weigh 1000 grams. 3.0 % of this mass or 30 grams of it is constituted of H2O2. The molar mass of H2O2 is 2 (1.008 + 15.999) = 34.014. The molarity of this solution is therefore 30/34.014 = 0.88, to the justified number of significant digits.
How do you make a 1 percent aqueous solution of potassium hydroxide?
To make a 1% aqueous solution of potassium hydroxide, you would mix 1 gram of potassium hydroxide with 99 grams of water (for a total of 100 grams solution). This would give you a solution where 1% of the total weight is potassium hydroxide.
Aqueous solution of copper sulphate is a homogeneous mixture?
Yes, an aqueous solution of copper sulfate is a homogeneous mixture because it consists of a single phase where the copper sulfate is uniformly dissolved in water, resulting in a uniform composition throughout the solution.
Is vinegar the aqueous solution of an acid?
Yes, vinegar is made up mostly of acetic acid diluted in water, making it an aqueous solution of an acid.
What is the most commonly used measure of concentration for an aqueous solution?
The most commonly used measure of concentration for an aqueous solution is molarity, which is the number of moles of solute per liter of solution.
The molarity of a 10.0 L aqueous solution that contains 23.4 grams of sodium chloride is?
The first step is to convert the mass of sodium chloride to moles using its molar mass. Then, divide the moles of sodium chloride by the volume of the solution in liters to calculate the molarity.
What is the name for the solution which contains water?
aqueous
Is a aqueous solution a solution that contains all the solute that it can hold?
the solution itself, yes. it must contain water to be called an aqueous solution. the term aqueous designates water as the solvent/diluent.
What is the molarity of an aqueous solution that contains 12.2 grams of SrCl2 dissolved in 2500 milliliters of solution?
The molar mass of SrCl2 is 158.52 g/mol. First, convert the volume to liters (2500 mL = 2.5 L). Next, calculate the number of moles of SrCl2 in 12.2 grams. Finally, divide the number of moles by the volume in liters to find the molarity.
Calculate the mole fraction of HCl in 20 percent aqueous solution?
The mole fraction of HCl in a 20% aqueous solution can be calculated by converting the percentage to a molarity concentration. Assuming the density of the solution is 1 g/mL, a 20% solution means 20g of HCl in 100g of solution. If the molar mass of HCl is 36.5 g/mol, we can calculate the molarity and then use it to find the mole fraction of HCl in the solution.
What is the molarity of an aqueous solution containing 22.5 grams of sucrose in 35.5 milliliters of solution?
To find the molarity, first convert the grams of sucrose to moles using its molar mass. Sucrose has a molar mass of 342.3 g/mol. Then, convert the milliliters of solution to liters. Finally, divide the moles of solute by the liters of solution to get the molarity.
If 2.0 mL of 6.0M HCl is used to make a 500.0-mL aqueous solution what is the molarity of the dilute solution?
The number of moles of HCl in the initial solution can be calculated using the formula M1V1 = M2V2, where M1 = 6.0 M, V1 = 2.0 mL, V2 = 500.0 mL, and M2 is the unknown molarity. Solving for M2 gives a molarity of 0.024 M for the dilute solution.
What is an aqueous solution that contains more hydroxide ions than?
An aqueous solution that contains more hydroxide ions than hydrogen ions is considered a basic solution with a pH greater than 7. This solution is known as an alkaline solution and has a higher concentration of hydroxide ions, making it a stronger base.
A bottle of commercial concentrated aqueous ammonia is labeled 28.89 percent NH3 by mass and density is 0.8960 grams mL. What is the molarity of the ammonia solution?
To find the molarity, first calculate the moles of NH3 in 100g of the solution using the mass percent. Then convert the volume of the solution (1 mL) to liters. Finally, divide moles by liters to obtain the molarity.
What is the molarity of H3O plus in an aqueous solution of methanoic acid if its pH is 5.5?
The pH can be calculated using the formula pH = -log[H3O+]. Rearranging, [H3O+] = 10^(-pH). Therefore, [H3O+] = 10^(-5.5), which gives a molarity of approximately 3.16 x 10^(-6) M in the aqueous solution.
Water is a solvent in a(n) what solution?
'An Aqueous' solution. NB The word 'aqueous' comes from Latin ; 'aqua' meaning 'water'.
