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What is the answer of what is the weight percent of potassium nitrate in a solution that is made by dissolving 30.0 g of potassium nitrate in 90.0 g of water?
To find the weight percent of potassium nitrate in the solution, first calculate the total mass of the solution, which is the sum of the mass of potassium nitrate and the mass of water: 30.0 g + 90.0 g = 120.0 g. Next, use the formula for weight percent: (mass of solute / total mass of solution) × 100%. Thus, the weight percent of potassium nitrate is (30.0 g / 120.0 g) × 100% = 25.0%.
What is potassium permanganate 0.1 percent soln per ml?
1 mL solution contain 1 mg potassium permanganate.
How much of a 30 percent sodium chloride stock solution is needed to make 10 ml of a normal saline solution?
The volume is 0,3 mL.
What is the Empirical formula of the compound that is 52.7 percent K 47.3 percent Cl?
The empirical formula of the compound with 52.7% K and 47.3% Cl is KCl (potassium chloride). This is because the ratio of potassium to chlorine atoms in the compound is 1:1, leading to the simple formula KCl.
How can you express the concentration of a substance mathematically?
In chemistry, the concentration of a substance in solution is determined by molarity, which is symbolized by "M". This indicates the number of moles of a substance dissolved in one liter of a solvent (usually water). For example: - 1 mole of sodium chloride = 58 grams - If 116 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 2-molar (2 M) solution of sodium chloride. - If 232 grams of sodium chloride are dissolved in 1 liter of water, then that solution is a 4-molar (4 M) solution of sodium chloride.
How much potassium chloride do you add to 42 gallons of water to make a 2 percent solution?
3179.4 g
Weight of 6 percent KCL Pounds Per gallon?
The weight of 6% KCl (potassium chloride) solution is 6 pounds per gallon. This means that in one gallon of the solution, 6% of the weight is potassium chloride, which amounts to 6 pounds.
Why is sodium chloride 0.9 percent percent given?
This is a isotonic saline solution.
Which has the highest conductivity between sodium chloride crystal and 5 percent sodium chloride solution?
The solution being an electrolyte is electrically conductive.
What is the answer of what is the weight percent of potassium nitrate in a solution that is made by dissolving 30.0 g of potassium nitrate in 90.0 g of water?
To find the weight percent of potassium nitrate in the solution, first calculate the total mass of the solution, which is the sum of the mass of potassium nitrate and the mass of water: 30.0 g + 90.0 g = 120.0 g. Next, use the formula for weight percent: (mass of solute / total mass of solution) × 100%. Thus, the weight percent of potassium nitrate is (30.0 g / 120.0 g) × 100% = 25.0%.
How do you make a 10 percent aqueous solution of potassium hydroxide?
To make a 10 percent aqueous solution of potassium hydroxide, you would dissolve 10 grams of potassium hydroxide in enough water to make a total solution volume of 100 mL. This solution would be considered a 10 percent concentration by weight. Be cautious when handling potassium hydroxide as it is a caustic substance.
How many moles of sodium chloride solute are in 155 grams of an 85.5 percent by mass solution?
To find the moles of sodium chloride solute in 155 grams of an 85.5% solution, first calculate the mass of sodium chloride present in the solution (mass percent x mass of solution). Then, convert the mass of sodium chloride to moles using its molar mass (58.44 g/mol). This will give you the number of moles of sodium chloride solute in the solution.
What is Sodium chloride 0.9 percent?
This is an isotonic saline solution; 9 g/L sodium chloride solution in water with added glucose.
A solution contains 30 g of calcium chloride in 250 g of water express the mass percent?
The solution has a total mass of 30 + 250 = 380 g. The mass percent of calcium chloride in this solution is 100(30/380) = 7.9 %, to the justified number of significant digits.
What is the mass percent concentration of the solution prepared by adding 20 g of sodium chloride into 380 g of water?
Divide the amount of sodium chloride by the total amount (sodium chloride + water). Then multiply that by 100 to convert to percent.
Are Sodium Chloride 0.9 percent and Normal Saline the same solution?
Yes, Sodium Chloride 0.9% and Normal Saline are the same solution. Normal Saline is a sterile solution of 0.9% sodium chloride in water, commonly used in medical settings for hydration and to dilute medications.
How do you prepare a 5 percent potassium iodide solution?
To prepare a 5% potassium iodide solution, weigh 5 grams of potassium iodide and dissolve it in 100 mL of water. Stir until the potassium iodide is completely dissolved to achieve a 5% solution.
