Calculate the original concentration of a solution if 50 mL of the original solution was diluted to 490 mL to make a 5x10-2 M solution. Submit your answer to 3 significant figures. OF ASh

How many moles of hydrochloric acid are present in 61 mL of 0.847 M hydrochloric acid? Report your answer with four places after the decimal.

Please help with question 2. G, H, and I

How much 20.0% NaOH should I put in a 30.0 ml tube if my dilution ratio is 1/10. What is the concentration of the tube. ml of 20.0% Just put the number of mL Do not enter anything but a number. Use correct sig figs. Remember ratios and conversion factors do not enter the significant figure calculation. What is the concentration in percent. Again, correct significant figures. NUMBERS only not the % sign

An analytical standard solution was prepared by diluting 200 mL of a stock solution to 400 mL. If 20 mL of the resulting solution was further diluted to 120 mL, what is the final solution concentration given that the original stock solution had a concentration of 0.4 M.

If 7.94 g of CuNO3 is dissolved in water to make a 0.860 M solution, what is the volume of the solution in milliliters? volume: mL

26. Determine the molarity of a solution made when 273.10 g of iron (III) chloride are dissolved in 1.51 liters of solution.  The molar mass of FeCl3 is 162.21 g/mol.  Report your answer to three decimal places.

A stock solution of KNO2 is available to prepare solutions that are more dilute. Calculate the volume, in mL, of a 2.0-M solution of KNO2 required to prepare exactly 100 mL of a 0.790-M solution of KNO2. mL

A volume of 30.2 mL of a 2.16 M KMnO4 solution is mixed with 12.7 mL of a 0.492 M KMnO4 solution. Calculate the concentration of the final solution. Assume the volumes are additive. Round your answer to 3 significant digits. M x

Suppose 9.67g of sodium chloride is dissolved in 100.mL of a 0.50M aqueous solution of potassium carbonate. Calculate the final molarity of chloride anion in the solution. You can assume the volume of the solution doesn't change when the sodium chloride is dissolved in it. Round your answer to 3 significant digits.