A sample of 18.11 grams of sodium hydroxide is weighed out on a balance and prepared to a volume of 2.00 x 102 mL in water.  What is the molarity of this aqueous solution of NaOH?  Express your answer to the correct number of significant figures and include the unit with your answer.

You are making a rubbing alcohol (=isopropyl alcohol) solution to disinfect surfaces. You start with 316.7 mL of a 4.440 M isopropyl alcohol solution, and dilute it with pure water. After the dilution, you end up with a 1.066 M solution. What is the final volume of the solution after the water has been added? Enter your answer in the units of L (liters), do not enter the unit.

A chemist prepares a solution of iron (II) chloride (FeCl₂) by measuring out 1.0 g of FeCl₂ into a 250. mL volumetric flask and filling to the mark with distilled water. Calculate the molarity of Canions in the chemist's solution. Be sure your answer is rounded to 2 significant digits. 7 mol L 0x x10 X Ś

A chemist prepares a solution of silver perchlorate (AgClO) by measuring out 440. g of silver perchlorate into a 100. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's silver perchlorate solution. Round your answer to 3 significant digits. Ú mol/L x10 X

A chemist prepares a solution of magnesium fluoride (MgF, by measuring out 0.032 umol of magnesium fluoride into a 450. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in umol/L of the chemist's magnesium fluoride solution. Be sure your answer hås the correct number of significant digits, u mol L

A chemist prepares a solution of nickel (II) chloride (NiC1₂) by measuring out 250. g of nickel (II) chloride into a 400. mL volumetric flask and filling the flask to the mark with water. Calculate the concentration in mol/L of the chemist's nickel (II) chloride solution. Be sure your answer has the correct number of significant digits. mol/L x10 Ś

A chemistry student must write down in her lab notebook the concentration of a solution of potassium chloride. The concentration of a solution equals the mass of what's dissolved divided by the total volume of the solution. Here's how the student prepared the solution: • The label on the graduated cylinder says: empty weight: 1.55 g • She put some solid potassium chloride into the graduated cylinder and weighed it. With the potassium chloride added, the cylinder weighed 31.436 g. • She added water to the graduated cylinder and dissolved the potassium chloride completely. Then she read the total volume of the solution from the markings on the graduated cylinder. The total volume of the solution was 166.4 mL. What concentration should the student write down in her lab notebook? Be sure your answer has the correct number of significant digits. -1 g.mL x10 × Ś

A chemistry student weighs out 0.166 g of sulfurous acid (H,SO,), a diprotic acid, into a 250. mL volumetric flask and dilutes to the mark with distilled water. He plans to titrate the acid with 0.1300 M NaOH solution. Calculate the volume of NaOH solution the student will need to add to reach the final equivalence point. Round your answer to 3 significant digits.

Suppose 10.9 g of sodium iodide is dissolved in 200. mL of a 0.40 Maqueous solution of silver nitrate. Calculate the final molarity of iodide anion in the solution. You can assume the volume of the solution doesn't change when the sodium iodide is dissolved in it. Be sure your answer has the correct number of significant digits. OM x10 X Ś

A pharmacist works with a 1.75 M solution of sodium bromide (NaBr) and water. The volume of the solution is 84.0 milliliters. If the pharmacist dilutes the solution to 1.00 M, what is the volume of the new solution?