What is the concentration in % (w/w), of a solution prepared by mixing 50.0 g NaCl and 150.0 g water? O A. 0.250 % B. 33.3 % O C. 40.0 %

Q: You are told to prepare 200 mL of fixative solution containing 30% formaldehyde (vol/vol), 1X…

A: As we want 30% formaldehyde out of total 200ml so we take .3*200 = 60ml formaldehyde is taken.

Q: A Vitamin C packet is added to a glass of water containing 620.0 mL of water. The Vitamin C packet…

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

Q: The concentration of a certain sodium hydroxide solution was determined by using the solution to…

A: Given: KHP is an acid with 1 acidic hydrogen Mass of KHP =0.3520 g Molar mass of KHP =204.22 g/mol…

Q: How many grams of NaOH would you need to make 3,982 mL of a 3 M NAOH solution (m.w. = 40.00 g/mol)?…

A: By the concept of molarity, we can determine the concentration of a solution. It is the total number…

Q: 200 microliters of a standard solution of 0.200 mg/mL caffeine was mixed with 4.8 mL of 50 mM sodium…

A: Equation of dilution: M1 × V1 = M2 × V2where:M1 is the molar concentration of the stock solution.M2…

Q: An aqueous solution contains 0.34 M potassium cyanide. One liter of this solution could be converted…

A: pH is the potential of hydrogen. It is measured by a pH meter. A pH scale ranges from 0 to 14. pH…

Q: 12 grams of glucose will make how many mL of a 0.5 g/mL solution?

A: Given Values: Weight of glucose = 12 g Concentration = 0.5 gml How much volume of water needs to…

Q: A 0.200 M solution of a weak monoprotic acid (HA) has a pH of 2.35. What is the value of K of this…

A: The final answers are: Ka​=9.977∗10−5Percent ionization =2.2335% Explanation:Step 1:The equation is…

Q: Which of the following ionizes completely in solution and is considered to be a strong acid? Select…

A: Acid  Acid are those compounds which give hydrogen ion when dissolved in water.

Q: Kaochlor, a 10% (m/v) KCl solution, is an oral electrolyte supplement administered for potassium…

A: Kaochlor is potassium chloride oral prescription which is used to treat and prevent low potassium…

Q: A 110.0value - mL buffer solution is 0.255M in NH3 and 0.395 M in NH4Br. The Kb alue for NH3 is 1.76…

A: Step 1: Given:Volume:  110 mL Concentration of NH3 = 0.255 MConcentration of NH4Br = 0.395 MKb of…

Q: given a stock solution of 10% dextrose, how would you make 5 mL of a 0.9% dextrose solution? find mL…

A: Given Values: The concentration of the stock solution of dextrose = 10% Concentration of the final…

Q: A solution contains 0.25 M Ni(NO3)2 and 0.25 M Cu(NO3)2. A. Can the metal ions be separated by…

A: Sodium carbonate is generally while dissolved in water, sodium carbonate forms carbonic acid and…

Q: A 1.00 g sample containing NaHCO3 was dissolved in water and titrated using 0.500 M HCl. The sample…

A: A chemical laboratory method is used for the quantitative analysis of an analyte that is already…

Q: If you mix 9 g of NaOH with 90 mL of water, what is the mass/volume (g/mL) concentration of the…

A: Given Values: Weight of NaOH = 9 gVolume  of the water to be mixed with 9 g NaOH= 90 ml

Q: A doctor orders 7 mg of compazine, which is used to treat nausea vertigo, and migraine headaches. If…

A: As per our policy, We prefer typed answers in case of numerical rather than handwritten, ones unless…

Q: Based on the Henderson-Hasselbalch equation (shown below), calculate the pH when the ratio of acetic…

A: Henderson-Hasselbalch equation is used to calculate the pH of a buffer solution when the pKa value…