many micrograms are contained in it?    Hint: You have four conversion factors. 0.0200 moles = 1 liter 345.32 grams = 1 mole 106 micrograms = 1 gram 1000 milliliters = 1 liter Group of answer choices 3.95 x 10^5 micrograms 0.00632 micrograms 5.79 x 10^4 micrograms

Q: If it is found that 5.00 mL of a sample has a mass of 5.250 g, what is the concentration of the…

A: Amount of substance present in 100ml of solution is defined as the percentage mass by volume. %m/v =…

Q: A chemist prepares a solution of copper(II) sulfate (CuSO,) by measuring out 20.7 g of copper(I1)…

A: Given :-  mass of copper(II)sulfate = 20.7 g  volume of solution = 500 mL  To calculate :-…

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Hypothetical element El Hydroacid, HEl Reaction; H2O + HEl  = H3O+ + El-   Molar mass of HEl =…

Q: In the lab, 5.21 mL of a 11.6 M HCIO, (100.5 g/mol) solution is diluted to 625 mL. What is the…

A: Given data HClO4= 11.6 M or 5.21 ml diluted by 625 ml

Q: Figure 1 represents a 1.0 L solution of sugar dissolved in water. The dots in the magnification…

A: Given,The volume of a initial solution = 1.0 LThe final volume after adding 1.0 L of water is = 2.0…

Q: You have 59.95 grams of a compound in 89.35 mL solution. (Hint: write as a fraction of grams per mL)…

A:

Q: The mass of solute per 100 ml of solution is abbreviated as (m/v). Mass is not technically the same…

A:

Q: How many grams of xylose (C5H1005) would be in 10 liters of a 2 M solution? Show your work or…

A:

Q: What mass of HCl is contained in 27.1 mL of an aqueous HCl solution that has a density of 1.19 g/mL…

A: Given, density of HCl solution = 1.19 g/mL volume of HCl solution = 27.1 mL we know, density = mass…

Q: A Chemistry student has to prepare 155 mL of 0.100 M KI in water. She finds a bottle that states it…

A: The required solution is 155 millilitres of 0.100 M KI in water.

Q: A chemist prepares a solution of iron(II) bromide (FeBr₂) by measuring out 80. g of iron (II)…

A: Molarity is defined as number of mole of solute divide by volume of solution in liter

Q: Calculate the molarity of each solution. 1. 0.142  mol  of sucrose in 696  mL  of solution…

A: Since, Molarity is the number of moles of solute dissolve in one litre of the solution. Then,

Q: A chemist adds 975.0 mL of a 0.425 g/L calcium sulfate (CaSO.) solution to a flask. Calculate the…

A: We will use strength of solution given to find mass of calcium sulfate.

Q: 4. You need to make 1 liter of a 5 M solution of sodium chloride (NaCl). The molecular weight of…

A:

Q: What is the concentration of a solution (ppm) where 3.76 g of solute (88.1 g/mol) is dissolved in…

A: ppm - It is the number of grams of solutes present in one million gram total mass of Solution. It is…

Q: Suppose you want to make a 0.75 M solution of copper (II) sulfate in a 250 mL volumetric flask. What…

A: To calculate mass of CuSo4 required to make 0.75M solution in 250 ml.

Q: A soil was extracted with 35.0mL water. The zinc concentration in the water was found to be…

A: Concentration (in mg/L) is defined as the mg of solute (here zinc) dissolved per liter of the…

Q: volume of 34.2 mL of a 1.16 M KMnO4 solution is mixed with 16.7 mL of a 0.392 M KMnO4 solution.…

A: Given, Note: 1L = 1000 mL Solution I Concentration of KMnO4 solution I = 1.16 M = 1.16 mol/L Volume…

Q: Question 10 For an experiment, you need 1 L of a 75 mg/L solution of potassium phosphate (K3PO4).…

A:

Q: drogen peroxide (H₂O₂) is used in commercial tooth whitening products where the H₂O₂ concentration…

A: Mass percentage = 10% Density = 1.45 g/mL Molar mass of hydrogen peroxide = 34.0147 g/mol

Q: In the lab, you need to make 250 mL of a 1.5 M solution of potassium chloride (KCl). KCl has a…

A: Given: Molarity of KCl is 1.5M. Volume of KCl is 250mL. Molecular mass of KCl is 74.55 g/mol.

Q: A student sets up and solves the following equation to solve a problem in solution stoichiometry.…

A:

Q: What will be the final volume (in L) of a solution if 8.2 g of soluble salt were added to create a…

A:

Q: A)  Calculate the molarity 12.21 mg KI in 107.6 mL of solution         Express your answer using…

A: Molarity of a solution is defined as the number of moles of solute to the total volume of solution.

Q: When patients are given an injection of a drug, it gets diluted in the blood stream. For pain…

A:

Q: Answer the following question: A student wants to make a 1.600 M aqueous solution of barium sulfate,…

A:

Q: How many grams of sucralose (molar mass=397.6 g/mol) are needed to make 635.0 mL of a 0.132 M…

A:

Q: What is the volume in mL needed to prepare a 0.4 M NaOH solution using 1.6 g of NaOH? The molar mass…

A:

Q: Given that milk is 0.0250 M in calcium ions, what is the mass of calcium ions in a quart of milk?…

A: Atomic mass of Ca2+ = 40.08 g/molMolarity of calcium ion(Ca2+) = 0.0250 mol/L1 quart = 946 mL

Q: A patient order requires 1.8 L of a 0.4 % benzalkonium chloride antiseptic. You have a 18 % stock…

A: The expression of dilution law is shown below: where; M1 = molarity of known solution V1 = volume…

Q: A solution has a concentration of 0.22 M KBr and a volume of 0.020 L. It is then diluted to a…

A: We know the dilution equation for a solution is => M1V1 = M2V2 where, M1 is the concentrated…

Q: What volume of a concentrated HCl solution, which is 36.0% HCl by mass and has a density of 1.179…

A: 1)  pH of HCl solution to be prepared =1.9

Q: Measured Mass of NaCI: 11.70 g Measured Volume of Water: 100.0 mL Answer each question with correct…

A: Information about the question

Q: You have a beaker of acid that reads: 6.0 M, 250 mL. You add water to the beaker to a final volume…

A:

Q: You need to make 1 liter of a 5 M solution of NaCl. The molecular weight of NaCl is 58.44 g/mol. How…

A:

Q: You have a solution of NaCl that has a molarity of  3.359 M.  You want to make a dilute solution of…

A:

Q: Procaine hydrochloride (M= 272.77 g/mol) is used as a local anesthetic. Calculate the molar out of a…

A: Given that -  Molar mass of procaine hydrochloride Solution = 272.77 g/mol  Molality of procaine…

Q: If 2.724 grams of material dissolves in 5.00 mL of water, how many grams of the material will…

A: Given : Mass of material that dissolves in 5.00 mL of water = 2.724 g And volume of another water…

Q: The stock concentration of sodium chloride is 5.5 mol/L. Using the dilution equation calculate the…

A: Dilution is the solution prepared by adding more solvent to the stock solution, whereas the stock…

Q: A lab assistant needs to neutralize a 3.1 M solution of HI. If there are 350 mL of solution, what…

A: Given that: molarity of HI = 3.1 M volume of HI = 350 mL molarity of Mg(OH)2 = 1.8 M To find:…

Q: How much solid NaCl is needed to prepare 10.0 mL of a 0.100 M NaCl solution? mass of solid NaCI =…

A:

Q: What volume (in mL) of 0.429 mol/L sodium hydroxide, NaOH (aq), is needed to completely neutralize…

A: Given Concentration of NaOH = 0.429 mol/L Concentration of HCl = 0.183 mol/L Volume of HCl = 74.5 ml

Q: 4.84 mL of a dark blue solution with a dye concentration of 15.72 %m/v is diluted to a total volume…

A: Given: Initial concentration of dye (M1) = 15.72 %m/v Initial volume V1 = 4.84 mL Final volume V2 =…

Q: A chemist adds 1.70 L of a 0.39 mol/L barium chloride (BaCl) solution to a reaction flask, Calculate…

A:

Q: Describe how to prepare 0.250 L of 0.600 M HCl solution, starting with a 2.00 M HCl solution. What…

A: Answer:- This question is answered by using the simple concept of dilution in which a concentrated…

Q: Your lab group needs to make 25.0 mL of a 2.5 M Cu(NO3)2 solution, which piece o glassware should be…

A: Given ,A Iab group needs to make 25.0 mL of a 2.5 M Cu(NO3)2 solution.Objective :To determine…

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.