You are given a 15.0 g mixture. You find out that the mixture contains 3.55 g salt, 4.78 g sand and the rest is iron. According to these data, what is the percent of iron in the mixture? O 55. 5% 6. 67% 44.5% 15.0%

Q: If 30.0 mL of 0.150 M CaCl2 is added to 15.0 mL of 0.100 M AgNO3, what is the mass in grams of AgCl…

A: Here we are required to find the mass of AgCl precipitate formed

Q: 645 grams of pond water sample were gathered and known to contain 1.45 x 10 grams of cadmium. What…

A: ppb is stand for part per billion and is a way of expressing concentration of solution.

Q: The density of water at 4.00°C is 0.967 g/mL. How many molecules of water are present in a 499.8 mL…

A: Given; density of water at 4.00Co=0.967 g/mL present volume of water we have=499.8 mL moles of water…

Q: A friend has some questions about empirical formulas and molecular formulas. You can assume that he…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: A chemist adds 355.0 mL of a 1.96 x 10 mol/L mercury(I) chloride (Hg,Cl,) solution to a reaction…

A:

Q: Determine the number of particles in 12.75 g of magnesium chloride (MgCl) * O 8.054 x 10²² particles…

A: 1 mole of any compound contains Avogadro number6.022×1023 of particles Recall the expression of…

Q: If the density of ocean water at a depth of 1.00 x 104 m is 1.071 g/mL and if 21.0 g of water at…

A:

Q: In this quantity of gold? [4.5 9. 64,456 g/mol) in A 55kg woman has 7.5 x 10-3 mol of hemoglobin…

A: The given data contains,  =7.5 ×10-3According to mole concept,1 mole of compound contains 6.022…

Q: 8) What volume of 0.123 M NaOH contains 25.0 g of NaOH? Express your answer in milliliters.

A: Molarity = 0.123 M

Q: Which mixture can be separated into its components by adding water then filtration? a. Potassium…

A: Given statement is  :  Which mixture can be separated into its components by adding water then…

Q: You weigh a dry flask, and place a chunk of solid into it, then weigh it again. You then fill the…

A: We are given mass of flask = 58.97g  Mass of flask + solid = 135.91g  We have to find mass of solid

Q: From the information below determine the mass of nh3 in 500 grams ammonia.   % solute by mass 28…

A: Solution Mass per cent is also a way of expressing a degree or describing the component throughout a…

Q: An acid solution is 0.120 M in HCl and 0.200 M in H2 SO4. Part A You may want to reference (Pages…

A:

Q: A 4.23 g4.23 g sample of a laboratory solution contains 1.96 g1.96 g of acid. What is the…

A: Mass percent = (mass of acid/ total mass) ×100% Mass percent is defined as the ratio of mass of…

Q: Determine the mass of sulfate in the powder (in grams) if 2.47 g of barium sulfate (BaSO4) formed.…

A: The question is based on the concept of quantitative estimation of sulphate present in the given…

Q: What is the mass of NaBr in the mixture? Express your answer using two significant figures. A…

A: Total mass .of Cl and Br is equal to 2.08-0.76=1.32g.

Q: In a chemical reaction, sulfur goes through a combustion reaction and produces sulfur trioxide as a…

A:

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

A:

Q: The concentration of Al3+ ion in a sample of spring water is 24.7 ppm. What mass of Al3+ ion is…

A: 1. Given that : Concentration of Al3+ ion in spring water (in ppm) = 24.7 ppm Density of spring…

Q: What mass in grams (g) of Li3PO4  (MM=115.97 g/mol) is needed to prepare 300. mL of a solution…

A: Given: Lithium ion concentration = 0.148 M MM=115.97 g/mol Volume of solution = 300 mL

Q: Mixtures and compounds vary in composition with the latter having a 1) compound. The components of a…

A: A mixture is a physical combination of two or more substances. For example, water and salt.

Q: compound containing Sodium, Chlorine, and Oxygen is 25.42% Sodium by mass. A 3.25-gram sample gives…

A:

Q: You have a sample of soil. Soil is a heterogeneous mixture. You separate the different size…

A:

Q: If an atomic mass unit equals 1.66 × 10−24 g, what is the mass in grams of 5.00 × 1022 formula units…

A:

Q: What is the % by mass of water in your hydrated copper (II) sulphate? Mass of just anhydrous…

A:

Q: I just read the definition of the Colligative Properties​, but could you explain use the…

A: Colligative property depends only on temperature.

Q: The formula to use for calculations of dilutions is 1. VC =V½C2 2. V¡C2 = V½C1 %3D %3D C1 %3D O 1 O…

A: Dilution: It is the process in which there will be the addition of water to the more concentrated…

Q: Solvent Hydrogen Oceans Ponds Cooking Cleaning Boiling Freezing Properties Colorless Tasteless Oil…

A: The blanks are filled below:

Q: Calculate the molarity of a solution prepared by dissolving 12.50 grams of NaNO3 in 250. mL of…

A: Molarity is defined as the moles of solute present in one liter of solution.

Q: Liquid paraffin. 20 mL Zinc oxide . .15 mg Yellow wax, q.s. ad....100 g What is the amount of liquid…

A: The amount of liquid paraffin is 44 g (option b). Hence the correct option is option b.

Q: A student finds that they have 0.2545 g of NH4Cl, 1.1502 g of NaCl, and 1.0181 g of SiO2. Calculate…

A: Given  mass of NH4Cl = 0.2545g mass of NaCl = 1.1502 g mass of  SiO2 = 1.0181 g Initial mass if…

Q: How many grams of sodium ions are present in 5.000 kg of an aqueous sodium sulfate solution whose…

A: Given: Mass of solution = 5.000 Kg = 5000 g…

Q: The main chemicals present in a cup of coffee are water, caffeine, and tannins (acidic polyphenols…

A: The density of water containing coffee(aqueous layer) is around 1.00 g/mL Given the density of the…

Q: A soft drink contains 39 g of sugar in 303 g of H2O. Part A What is the concentration of sugar in…

A: We have given that Mass of sugar = 39 g Mass of water = 303 g

Q: A drink recipe calls for 600 grams of sugar, 6 liters of water, and 3 package of flavoring. While…

A: Limiting Reagent concept is used wherever one ingredient is limited.

Q: Samples of several compounds are decomposed and the masses of their constituent elements are shown…

A: Calculate moles of each element by dividing the given mass by their molar mass & convert them…

Q: A sample containing NaCl, Na,SO, and NaNO, gives the following elemental analysis: Na: 32.08…

A:

Q: One of the ionic compounds in sports drinks is potassium dihydrogen phosphate (KH2PO4). The label on…

A: The question is based on the concept of solutions.   molarity is a method of expressing…

Q: You dilute the river water 10 times for the analysis of SDS concentration. The instrument measures…

A:

Q: A student, Ken, is given a mixture containing two nitrate compounds. The mixture includes NaNO, and…

A:

Q: What volume of 0.244 M NaOH, in milliliters, contains 30.0 g of NaOH? Volume mL %3D

A: Molarity of the solution is obtained by dividing the number of moles of solute by the volume of…

Q: If 19.5 grams of an aqueous solution of magnesium sulfate, MgSO4, contains 1.71 grams of magnesium…

A:

Q: The amount of calcium in a 15.0-g sample was determined by converting the calcium to calcium…

A: From given, weight of sample we are calculating number of moles of CaC2O4 and from that mass of…

Q: All of the following are properties of zinc. Which is NOT a physical property. It corrodes with…

A: In this question, we will select the statement which is not a physical property that means it is a…

Q: Crime scene investigators keep a wide variety of compounds on hand to help with identifying unknown…

A: Elemental analysis of the compound revealed that it contains  63.57% carbon 6.000% hydrogen 9.267%…

Q: You are given a dye stock solution which contains  0.200 g/L dye.  If you place 20.0 mL of stock in…

A: Given ,          Concentration of dye solution=0.200 gLit.            Also , 1 Lit=1000 ml   Since…

Q: Q26 In microbiology, dilutions are critical for getting a countable number of microbes to grow on a…

A: Given:  No. Of colonies of bacteria = 52 No. Of bacteria in culture =  129 x 106

Q: Mass (in grams) of 1.00×10−2 molof CdS. Express the mass in grams to three significant digits.…

A: The mass in grams is calculated for CdS as shown,

Q: The concentration of sodium chloride in an aqueous solution that is 2.13 M and that has a density of…

A: Mass percent mainly aids in depicting solute’s potential, available in particular mixture. Mass…

Q: If a chemist were given 2.99 grams of a mixture of sugar and sand which gave 1.35 grams of sand on…

A: Given : Mass of mixture = 2.99 g Mass of sand = 1.35 g

Stoichiometry

Stoichiometry is a chemical division that evaluates the quantitative content of the chemical process with the help of the reacting molecules or products taking part in the reaction. The term “stoicheion” in “Stoichiometry”, is an old Greek term for "element" whereas “metron” means "measure".