For Exercises 11–15, calculate the quantities needed to prepare the solid and semisolid compounds. Round your answers to two decimal places (hundredths) when necessary. Calculate the amount of cream base needed to prepare 50 g of 1.5% lidocaine cream

Q: How much water would 29.21 grams of an insoluble sample with a density per of 4.35 g/ml displace?

A: Given, the mass of the insoluble sample = 29.21 g The density of the sample = 4.35 g/mL We have to…

Q: Purified water contains not more than 10 ppm of total solids. Express this concentration as a…

A: The concentration of the solutes particles in the solution can be expressed in many ways such as…

Q: Calculate the molarity of 25.0 grams of KBr dissolved to 750.0 mL.

A: The concentration of any substance can be expressed in different ways such as molality, molarity,…

Q: sample of water contains 114 ppm of chloride  ions. What is the concentration of chloride ions in…

A: Given-> Concentration of chloride ion = 114 ppm

Q: 8 Classify each compound based on its properties Substance Melting Point Solubility Conductivity…

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Q: 28. Pick an appropriate solvent from Table 13.2 to dissolve (a) glucose (polar) (b) salt (ionic) (c)…

A: Polar solute dissolves in polar solvent and non-polar solute dissolves in non-polar solvent.

Q: Volume solvent (in mL) needed to prepare 1.13 g carbonic acid to make 1.13 M solution.

A:

Q: calculate the mass of water that contains 10,000,000,000,000,000,000,000 molecules

A: Answer:- Firstly from the given number of water molecules, moles of water are calculated. then using…

Q: What volume of a 1.20 mol/L stock solution would you use to make 1.00 L of a 0.800 mol/L solution?…

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Q: How many grams of NaCl are needed to make 3.0 L of 1.5 M solution?

A: Mole can be defined as a standard unit for measuring large quantities of very small entities such as…

Q: Round off your answers in four decimal places. Use whole numbers for the molecular weights. 3.…

A: Given: Mass of glucose= 80 g The volume of the solution= 1.00 L To find: Molarity of the solution…

Q: 2. Boil 1 Lof distilled water for 5 min to expel CO2. Pour the water into a polyethylene bottle,…

A: Since you have posted a question with multiple questions, we will solve first question for you. To…

Q: Concentrated hydrochloric acid has a concentration of 12.0 M. What volume of this solution should be…

A: Dilution :-  When a concentrated solution of molarity M1 and volume V1 is diluted by adding water to…

Q: How many moles of NaOH are present in 31.5 mL of 0.240 M NaOH?

A:

Q: What will be the number of moles of water in 1 L volume of water?

A: In this question, we have to find out the correct answer of given problem by the help of Mole…

Q: Potassium hydroxide (KOH), glucose and methylene blue are added together in a test tube. Why did we…

A: in laboratory there are several techniques are used to mix the solutions. When we are using 3…

Q: What mass ( in g ) of NaCl is needed to make 230 g of a 13.5% NaCl solution? Report your answer to 2…

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Q: ADWA) sets a limit for mercury- a toxin to the central nervous system- at 0.0020 ppm by mass. Water…

A: In this question we have to find out the volume of water in litre by a person have to consume to…

Q: How many moles of NaOH are present in 14.0 mL of 0.140M NaOH moles=

A:

Q: How much table salt should be added to 300 g water to lower its freezing point to -2.00°C? Follow…

A: Given, Mass of water = 300 g = 0.3 Kg Freezing point of solution (Tf(solution)) = -2.00 °C Amount…

Q: How many grams of magnesium chloride needed to prepare 500.0ml of 1.25 m

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Q: How many grams of NaCl are contained in 0.50 L of a 1.20 M solution?

A: The molar concentration is a measure of the concentration in a solution of a chemical species, in…

Q: _____4. The ff can be used for boiling a solution of salt, EXCEPT a) beaker b) Bunsen burner c)…

A: Analytical chemistry is branch of chemistry which is used to separate, identify, and quantify…

Q: Materials Needed: sugar water glasses fork oil teaspoon stones egg yolk Procedure: 1. Put one…

A: Materials :       Sugar                            Glasses                         Water…

Q: Phosphoric acid is added to some sodas to enable more sugar to be dissolved. Some sodas have…

A: The question is based on the concept of mass percentage. The amount of substance present in hundred…

Q: Forty grams of NaOH are dissolved in water and diluted to 500 ml. The solution’s concentration is?

A: Given  mass of NaOH        = 40 gram Volume of solution = 40 mL          1 mL  = 10 -3 Liter…

Q: Given the chart below for the prepared solution.?What would be the final reading and total volume of…

A: The total volume of the solution is equal to the volume of the solute and the volume of the solvent.…

Q: How much NH4Cl is required to prepare 100mL of a solution containing 70mg NH4Cl per mL?

A: A solution is defined as a homogeneous mixture of two or more substances. A solution that consists…

Q: What volume of 2.0 M sulphuric acid is needed to prepare 100 mL of 0.5 M sulphuric acid? Type only…

A: • The values provided in the question are:-        i) Initial concentration of a sulfuric acid…

Q: How many liters of solution are produced in order to prepare a 0.756 M solution if you have 30.1 g…

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Q: How is a supersaturated solution typically made?

A: Super saturated solution is defined as a solution that contains solute more than the amount present…

Q: How many moles of NaOH are present in 20.5 mL of 0.210 M NAOH? moles:

A: Molarity of a solution is given by,       molarity = moles of solutevolume of solution (in L)moles…

Q: What is the molarity of 1.3 L of solution containing 26 g of NaCl?Express your answer to two…

A: Molarity = number of moles of solute / volume of solution in liter number of moles of solute = 26gm…

Q: How many grams of hydrochloric acid are contained in 2.00 L of 0.500 N solution?

A: Given : Normality of hydrochloric acid i.e HCl = 0.500 N And volume of solution = 2.00 L

Q: Sea water contains roughly 28.0 g of NaCl per liter. How many moles of salt is in 2.5 L of water

A: Given,  Sea water contains 28.0 g of NaCl per liter Number of moles = mass/molar mass

Q: convert 20 mL of Cyclohexanol to grams Convert 5 mL of 85% phosphoric acid to grams

A: Given Volume of Cyclohexanol = 20 mLgrams of Cyclohexanol = to be determined

Q: Calculate the mass in grams of NaF needed to prepare 0.50 L of 1.47 M NaF solution. Enter your…

A: Molar mass of NaF is (23 + 19)g = 42g/molesGiven molarity = 1.47 M and volume = 0.5 LNow we know,…

Q: How many moles of NaOH are present in 15.5 mL of 0.180 M NAOH? moles:

A: If there is x mol of a particular compound in 1000ml of solvent then it's called x molar solution .…

Q: Calculate the mass in grams of NaF needed to prepare 0.50 L of 2.25 M NaF solution. Enter your…

A: Write the formula for calculating mass of a compound required to prepare specific molar…

Q: Why different amounts of water and chlorophyll solution are being mixed in the six different…

A: A question based on solution, which is to be accomplished.

Q: How many water particles surround a calcium ion? I’m trying to draw a particle representation of…

A: Calcium ion Ca2+ mostly shows co-ordination number of 6 , 7 , 8 . 80% of calcium co-ordination…

Q: Potassium nitrate has a lattice energy of -163.8 kcal/mol and a heat of hydration of -155.5…

A: Enthalpy of given solution can be determined using the equation given below:

Q: How many grams of sulfur (S8) must be dissolved in 100.0 g naphthalene (C10H8) to make a 0.12 m…

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Q: How much 0.045 M HCl solution can be made by diluting 250 mL of 12 M HCl?

A: First we will calculate the number of moles of HCl.Number of moles = Molarity × VolumeNumber of…

Q: How many moles of NaOH are present in 15.5 mL of 0.270 M NAOH? moles:

A: Record the given data, The given volume 15.5 ml = 0.0155 L Molarity of the given solution is 0.270 M

Q: What mass of sodium fluoride (NaF) is needed to 1.50 L of a 0.268 mol/L solution? Express your…

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Q: What is the mass percent of water within the copper (II) chloride dihydrate?

A: What is the mass percent of water within the copper (II) chloride dihydrate?

Q: How many moles of NaOH are present in 19.5 mL of 0.120 M NaOH?   Moles=

A: The question is about to calculate the Number of Moles of NaOH -

Q: 570 meir Isopr Label these components as solvents or solutes. methanol: [ Select ] sopropanol: […

A: Solution- Solute-  Methanol  Solvent-  water ( because its is universal solvent ) it is dissolved…