laboratory procedure calls for making 510.0 mL of a 1.3 MKNO3 solution. How much KNO3 in grams is needed? Express your answer using two significant figures.

Q: A chemist wants to make 6.5 L of a 0.280M CaCl2 solution. What mass of CaCl2 (in g) should the…

A: Molarity of a solution is defined as the number of moles of solute present in one litre of the…

Q: 3. The 4.00 mL sample of vinegar had a mass of 4.056 g. Calculate the grams of vinegar in one liter.…

A:

Q: How many mL of sodium chloride solution do you need to have 85.4 g? The density of the solution is…

A: As given : Mass = 85.4 g  Density = 1.202 g/ ml  Volume ( in ml) is V  = ?  We know  Density = mass…

Q: A chemist prepares a solution of sodium chloride (NaC1) by weighing out 7.20 g of sodium chloride…

A: Given: Mass of sodium chloride (NaCl) = 7.20 g. Volume of the solution made = 50 mL. We have to…

Q: A solution for disinfecting clinical thermometers was prepared by dissolving 22.5 g of ethyl alcohol…

A:

Q: A student needs to make 600 mL of a 0.81 M solution of NaCl. How many grams of NaCl should they…

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Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 0.667 kg of calcium…

A: A Chemist prepares a solution of calcium bromide(CaBr2) by measuring out 0.667kg of calcium bromide…

Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A: Answer is given below

Q: A laboratory procedure calls for making 510.0 mL of a 1.2 M KNO3 solution. Part A How much KNO3 in…

A: Given, Molarity of solution = 1.2 M volume of solution = 510.0 mL = 0.51 L we are asked to calculate…

Q: A chemist prepares a solution of iron(II) bromide (FeBr,) by measuring out 125. g of iron(II)…

A: Given-> Weight of FeBr2 = 125 gm  Volume = 350 ml = 0.350 L (1 L = 1000 ml)

Q: If you had to prepare a 0.200 M HCl solution from 17.0 mL of a 2.60 M HCl stock solution, to what…

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Q: What is the mass of 1 mL of pure water? How could this information be used to check the accuracy of…

A: Density of a substance is defined as its mass per unit volume.

Q: Determine the amount of potassium chloride in each solution. 18.5 g of a solution containing 1.08…

A: Since, mass%=mass of solutemass of solution×100

Q: 1. A solution is prepared by taking a clean and dry 50.0 ml volumetric flask. You are tasked to…

A: Mass of watch glass = 23.5 g Mass of watch glass + salt = 30 g So, Mass of salt = (30-23.5) g = 6.5…

Q: What volume of water (in mL) is needed to prepare a 1.67 M solution using 12.6 mL of 6.04 HCl…

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Q: Nurses are often required to calculate dosages. That is, they must check the order that a doctor has…

A:

Q: A chemist wants to make 5.0 L of a 0.280 M CaCl2 solution.  What mass of CaCl2 (in g) should the…

A: Given : concentration of CaCl2 = 0.280 M And volume of solution to be made = 5.0 L

Q: A chemistry student weighs out 0.0874 g of sulfurous acid (H,SO), a diprotic acid, into a 250. mL…

A: Given-> Weight of sulfurous acid=0.0874g Volume of volumetric  flask= 250 mL  Concentration of…

Q: A chemist prepares a solution of copper(II) fluoride (CuF₂) by weighing out 0.0307 mg of copper(II)…

A:

Q: A chemist prepares a solution of calcium bromide (CaBr,) by measuring out 84.7 g of calcium bromide…

A:

Q: 227 mL of a 3.2 M solution of KBr is diluted to 731 mL.  What is the new concentration of the…

A: The process of dilution is defined as the process in which a solution with a lower concentration is…

Q: mol A chemist makes 760. mL of potassium permanganate (KMNO,) working solution by adding distilled…

A: The given problem relates to stock dilution, so we can use the below relation to calculate the…

Q: Julia needs 75 milliliters (mL) of 4.0 x 104 M sulfuric acid solution. She has access to the…

A: The Answer to the following question is given as -

Q: A chemist prepares a solution of sodium nitrate (NaNO3) by measuring out 21.4 g of sodium nitrate…

A:

Q: You have a stock NaCl solution of 8 g/L.  You want to prepare 357 mL of a 5 mg/L NaCl solution.  How…

A: Given: The concentration of the stock NaCl solution = 8 g/L We have to find the volume of the stock…

Q: mol A chemist makes 480. mL of iron(II) bromide (FeBr,) working solution by adding distilled water…

A: Initial concentration of FeBr2  M1 = 2.64 mol/L Initial volume = V1 = 220 ml   Final diluted volume…

Q: There are 4.93 mL in 1.00 teaspoon. How many mL are there in 5.69 × 10° teaspoons? mL

A: It is a problem of unit conversion. Here it is given that 1 teaspoon contains 4.93 mL.

Q: mol A chemist makes 550. mL of calcium bromide (CaBr,) working solution by adding distilled water to…

A: Given : volume of stock solution used = 160 mL  concentration of stock solution = 7.38 mol/L And…

Q: A chemist wants to make 5.0 LL of a 0.330 MCaCl2MCaCl2 solution. What mass of CaCl2CaCl2 (in gg)…

A: Given  Molarity of CaCl2 =  0.330 M                               = 0.330 mole/Liter Volume of…

Q: A patient is to receive Tazidine by intramuscular injection. A 10.0 mL vile contains 1 g of dry…

A: The concentration of a solution can be defined in terms of molarity as the ratio of the amount of…

Q: A 125ml sample of an 8.2 M NaCl solution is diluted to 3.0 L . What volume of the diluted solution…

A: Concept:  Upon dilution the moles would remain constant , using this we can predict the new Molarity…

Q: A chemist mixes 81.1 g of water with 72.2 g of methanol and 28.4 of acetic acid. Calculate the…

A:

Q: An analytical chemist weighs out 0.141 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given, Mass of unknown diprotic acid = 0.141 g. Volume of flask = 250 mL Molarity of NaOH = 0.1100 M…

Q: page 2 A dialysis unit requires 90000 mL of distilled water. How many gallons of water are needed?…

A:

Q: A student pipetted 10 mL of a sample solution into a 250 mL volumetric flask and diluted it to the…

A: At first 10 mL of original solution is taken in 250 mL flask and the rest 240 mL of water is added…

Q: Students uses 275.7 grams of potassium nitrate, KNO3, to make a 2.5 M solution. What is the final…

A: Mass of potassium nitrate = 275.7g  Molarity of potassium nitrate = 2.5 M

Q: A 65.00 mL sample of 0.5 M nitric acid is introduced into a flask, and water is added until the…

A:

Q: A chemistry student weighs out 0.146 g of ascorbic acid (H,C,H,0,), a diprotic acid, into a 250. ml…

A: Given mass of ascorbic acid is ---- 0.146g Volume of the acid is ----250mL =0.250L Molarity of the…

Q: Which of the following glassware is best used for slow dispensing of 47.00 mL of a solution?

A: Volumetric pipette are the most accurate apparatus for dispensing a liquid. Because here the error…

Q: An analytical chemist weighs out 0.268 g of an unknown diprotic acid into a 250 mL volumetric flask…

A: Given: Mass of unknown diprotic acid = 0.268 g Molarity of NaOH solution = 0.1500 M         Volume…

Q: A lab prepared a solution of sulfuric acid with a volume of 5.0x10-4 m3. The solution is further…

A: Given: The volume of Solution = 5.0x10-4 m3 = 500mL After concentrating the solution, new Volume =…

Q: What is the volume of a solution that has a specific gravity of 1.2 and a mass of 185 g?

A: Given : specific gravity of solution = 1.2  And mass of solution = 185 g

Q: A pharmacist measures the mass of a powdered drug. The mass is  681mg. What is the mass in grams?…

A: We have given that  The mass  of a powdered drug  = 681mg.  mass  of a powdered drug in grams = ?

Q: The concentration of an HCl solution is 0.567 g HCl/g of HCl solution (the solution containing BOTH…

A: Given the concentration of an HCl solution is 0.567 g HCl/g of the solution it means that 1 g of HCl…

Q: A chemist prepares a solution of zinc oxalate (ZnC2O4 )by measuring out 4.97 mg of zinc oxalate into…

A: The concentration of the solution can be calculated using different methods. One of them is…

Q: 1. A student prepares a 600.0 mL of 500.0 ppm of glucose solution. What volume of this solution (in…

A: Given,  Volume of the solution = 600.0 mL  Concentration of glucose solution in ppm = 500.0 ppm…

Q: If 10.0 mL of a 3.00 M H2SO4 stock solution are diluted with water to a final volume of 0.500 L,…

A: Since initially moles of H2SO4 present in the solution is given by  Moles of H2SO4 = molarity X…

Q: A solution of 5.00% glucose (C6,H12,O6) solution is used in many medical settings. If you are given…

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Q: A chemistry student weighs out 0.130 g of phosphoric acid (H, PO,), a triprotic acid, into a 250. mL…

A:

Q: The molecular weight of sucrose is 342 g mol-1. How many grams would you need to weigh out, to…

A: •GIVEN=Molecular weight of sucrose=342 gm/mol •Molarity=0.8 M •Volume=20 ml=0.02 Litre •*Firstly we…

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.