1. If 7.5 g. of NaNO3 is dissolved in 85 ml. of water, what is the % concentration of NaNO3 in the solution? 2. Calculate the number in gram of MgCl2 that would be needed to prepare 250 ml of a 12 % aqueous MgCl2 solution. (density of the solution is 1.1 g/ml) 3. Calculate the number of gram of NaOH that must be added to 1L of water to make a 15% NaOH solution

Q: How many total moles of ions are present when KCl is dissolved in 1.20 L of a 0.400 M KCl solution?

A:

Q: A 90.0g sample of NaCl is dissolved in water to make a solution with a volume of 3.00 L. What is the…

A: Given that: Mass of NaCl = 90.0g Volume of solution = 3.00L Using molar mass of NaCl = 58.44 g/mol

Q: Complete the table: Solute Mass of solute Moles of solute Volume of solution Molarity of solution…

A: MgSO4 Molar mass of Magnesium Sulfate = 120.3 g/mol

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Q: Calculate the molarity of the two solutions. The first solution contains 0.300 mol of NAOH in 1.10 L…

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Q: How many moles of solute are present in 12.0 L of 3.00 M HCl? a) 36.0 mol b) 4.00 mol c) 0.250 mol…

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Q: what is the molarity of a solution when 30 g of naoh is mixed with 200 g of water? density of…

A: Molarity is one of the concentration terms that is defined as the number of moles of solute…

Q: An aqueous solution is1.983% by mass of sodium sulfite pentahydrate, Na2SO3∙5H2O. What is the…

A: Molarity is defined as the number of moles present in 1 liter of solution. It is given as: Molarity…

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Q: 9. Sr(OH)2 has a solubility of 11.3 g/ 100 g H₂O at 20.0 °C. a. How much would be needed to make a…

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Q: What is the molarity of a solution containing 8.6 g of NaBr in 0.85 moles of water? (density of…

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A:

Q: Given 609 milliliters of 0.365 M Ca(NO3)2Ca(NO3)2, calculate the moles of solute present in this…

A: Answer :- A) 0.222 mol Molarity.                M = No. Of mole(solute)/ Solution(L)       609 mL…

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Q: The concentration of a solution of lithium chlorite dissolved in water is 12.5% by mass. In a…

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Q: 3. Sodium sulfate is used in dyeing and printing textiles. A solution of sodium sulfate was prepared…

A: We have to use following formulasMoles=Mass of dissolved  Na2SO4Molar mass of  Na2SO4Molarity=Number…

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Q: A  150. g sample of KCl is dissolved in enough water to make 1.00 liter of solution. How many…

A: Mass of KCl = 150 g Molar mass of KCl = 74.55 g/mol   Moles of KCl =  mass / molar mass…

Q: 2. Determine the mass (in gams) of sodium chloride needed to prepare a 500.0 mL of a 2.0 M solution.

A: Given;

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A: Percent ratio of  mass of solute and mass of solution is known as mass percent concentration.

Q: lab you are required to make 250.0 mL of a 1.1 M NaOH solution. How many grams of NaOH should you…

A: Molarity = n/V  n = moles of solute  V = volume of solution moles of solute = mass of solute/molar…

Q: What volume of each solution contains 0.14 mol of KCl? part A: 0.277 M KCl part B: 1.6 M KCl part…

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Q: 24. An aqueous solution of hydrochloric acid (HCI, molar mass = 36.5 g/mol) has a density of 1.18…

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Q: Calculate the mass of solute (in grams) of a 0.612 m solution that contains 193.44 mL of water. The…

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Q: What volume of a 1.63 mass % solution of Mg(NO 3)2 is needed to contain 0.316 grams of…

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Q: 5. Suppose that 2.5 ml of 20% AgNO3 solution (density is 1.19 g/ml) What weight AgNO3 was in the…

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Q: 11. Find the mass percent of CuSO4 in a solution whose density is 1.30 g/mL and whose molarity is…

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Q: Which will have the highest number of moles of sodium ion:  25.0 mL of 0.20 M NaCl, 20.0 mL of 0.15…

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Q: 10. A solution is made by dissolving 17.8 g of magnesium sulfite, MgSO3, in enough water to make…

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Q: 1. What is the concentration (molarity) of a solution made NaCl and 500OmL of water?* O 1.24M O…

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Q: 10. Find the molarity of 21.4 m HF. This aqueous solution has a density of 1.101 g/mL.

A:

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Q: 1. Describe what happens to NaBr (an ionic compound) when it is dissolved in water: 2. If NaOH is…

A: 1. NaBr + H2O 2. NaOH dissolved in ethanol

Q: Find the Molarity of a solution that contains: a). 0.250 moles of KBr in 750.0 mls of solution. b).…

A: Molarity = moles / Volume of solution (in L) a) volume of solution =750 mL…

Q: A solution is made by dissolving 17.8 g of magnesium sulfite, MgSO3, in enough water to make exactly…

A: Molarity is defined as number moles of solute in 1 litre of solution.

Q: 1. What is the percent by mass of 6 g of copper (II) sulfate dissolved in 84 g of water? 2. A…

A: Since you have asked multiple question, we will solve the first question for you. If you want any…