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• ### 1) (a) Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 on enough...

1) (a) Calculate the molarity of a solution made by dissolving 12.5 grams of Na2CrO4 on enough water to form exactly 550 ml of solution. (b) How many moles of KBr arepresent in 150 ml of a 0.275 M solution? (c) How many milliliters of 6.1 M HCI solution are needed to obtain 0.100 mol of HCI?2) (a) How many grams of solute are persent in 15.0 ml of 0.736 M K2Cr2O7 ? (b) if 14.00 g of (NH4)2SO4 is...

• ### i need help with 1-6 Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution?...

i need help with 1-6 Carlos Chapter 9 Practice Problems t. A solution is made by dissolving 50.0 grams of HCI in enough water to give 2500 ml. of selutien. a) What is the molarity of the solution? b) what is the % concentration (w/v) of the solution? 2. How many grams of a protein are there in 275 mL of a 0.00%(wmor a protein soluton? 3. How many grams of NaoH are there in 855 mL of a 350...

• ### Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure...

Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure calcium carbonate, CaCO3, in dilute hydrochloric acid. A 1.579 g sample of CaCO3 is placed in a 150.0 mL volumetric flask and dissolved in HCl. Then the solution is diluted to the calibration mark of the volumetric flask. Calculate the resulting molarity of calcium ion. Molarity M For convenience, one form of sodium hydroxide that is sold commercially is the saturated solution. This solution...

• ### (10 pts) A solution is prepared by dissolving 1.239 grams of hydrochloric acid, HCI, in enough...

(10 pts) A solution is prepared by dissolving 1.239 grams of hydrochloric acid, HCI, in enough water to make 250.0 mL of solution. A 25.00 mL sample of this solution is diluted with water to a final volume of 100.0 mL. Now, you take 10.00 mL of that solution and dilute it to 100.00 mL What is the molarity of the final solution? (HCI 36.45 g/mol)

• ### 2(10 points) A solution is prepared by dissolving 25.00 grams o f ba rium nitrate, Ba(NO)...

2(10 points) A solution is prepared by dissolving 25.00 grams o f ba rium nitrate, Ba(NO) in sufficient water to make 500.0 mL of solution. A 25.0 mL sample of this is diluted with water to a final volume of 200.0 mL. What is the molarity of the final solution? (Ba(NO>-398.6 g/mol) 3. (10 points) Consider a solution prepared by mixing 349 grams of methanol, CHOH CHOH-320 g/mol) and 750 grams water. The final volume of the solution is 1105...

• ### A solution is created by dissolving 25.0 g of NaCl in enough water to form 150...

A solution is created by dissolving 25.0 g of NaCl in enough water to form 150 mL of solution. Determine the molarity of the solution.    What is the molarity of the diluted solution if 30.0 mL of 1.25 M acetic acid is diluted to 175 mL?    Given the following reaction: 2 Al (s) + 6 HCl (aq) ® 2 AlCl3 (aq) + 3 H2 (g) How many grams of hydrogen are produced by the reaction of 75.0 mL of 0.825...

• ### A solution is made by dissolving 14 g of silver nitrate, AgNO3, in enough water to...

A solution is made by dissolving 14 g of silver nitrate, AgNO3, in enough water to make exactly 250 mL of solution. Calculate the concentration (molarity) of AgNO3 in mol/L (M)

• ### Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure...

Standard solutions of calcium ion used to test for water hardness are prepared by dissolving pure calcium carbonate, CaCO3, in dilute hydrochloric acid. A 1.212 g sample of CaCO3 is placed in a 200.0 mL volumetric flask and dissolved in HCI. Then the solution is diluted to the calibration mark of the volumetric flask. Calculate the resulting molarity of calcium ion.

• ### Determine the molarity of a solution made by dissolving 0.478 moles of glycerol in enough water...

Determine the molarity of a solution made by dissolving 0.478 moles of glycerol in enough water to make 500.0 mL of solution.

• ### Determine the molarity of a solution made by dissolving 1.76 moles of potassium nitrate in enough...

Determine the molarity of a solution made by dissolving 1.76 moles of potassium nitrate in enough water to make 250.0 mL of solution