A sample of salt water was collected weighing 112.09 grams.  After boiling for several minutes until dry, the remaining residue weighed 22.11 grams.  What was the mass percent of the salt in this sample of seawater?

Q: 3. A 1.20-gram sample of a hydrated salt is heated to a constant mass of 0.80 gram. What is the…

A: Introduction: The amount of water in a hydrated salt can be determined by drying the hydrated salt.…

Q: 19- by heating 2.86 g of hydrated sample of washing soda Na,CO3.XH20, till Complete drying the…

A: This reaction is all about the  conversion of hydrous salt into anhydrous salt by applying heat to…

Q: Seawater consists of many important elements in the form of salts dissolved in the water. At 25°C…

A: #Q.1: Mass of seawater, m = 1000.0 g * 1 Kg1000 g = 1.000 Kg density of seawater, d = 1.024 kg/L

Q: Calculate the percent by mass of potassium nitrate in a solution made from 67.0g KNO3 and 447 mL of…

A: Here we use formula mass percentage , that is ( Mass of solute/ Mass of solution)* 100  Mass of…

Q: 2. A brine solution is 13.0 % (w/w). How much salt is there in a sample which weighs 150 grams?…

A: The given data : The %(w/w) of the solution = 13.0 % The mass of the sample = 150 g. To determine =…

Q: What are the significant chemical species which are present in a solution of aqueous ammonia?

A: Aqueous ammonia solution that is ammonia dissolved in water . As we know ammonia is base , so it…

Q: What is the mass of H2SO4 in a 48.1 cm3 sample of concentrated sulfuric acid that has a density of…

A: The given question is related to analytical chemistry. The mass of any compound is equal to…

Q: Disasters happened with the unsafe storage and handling of fireworks/firecracker products. Enumerate…

A: There is little difference in firecrackers and fireworks. Fireworks are a simple devise used for…

Q: Reacting water with magnesium nitride produces ammonia (NH3) and magnesium hydroxide. If this…

A: The reaction of magnesium nitride and water to produce ammonia and magnesium hydroxide is given by:

Q: Calculate the mass percent of hydrogen in water and the mass percent ofoxygen in water.

A: The mass of one mole of water is 18g. In the mass of water, the mass of hydrogen is 2 grams and the…

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: A solution is prepared by dissolving 2.86 g KMnO4 in 75.0 mL of water. (Density H₂O = 1.00 g/mL).…

A: Mass percent is calculated using the mass of solute and total mass of solution .

Q: what are the types of stabilizing agents found in the synthesis of nanoparticles?

A: A capping agent is act as stabilizing agent in preparation of nanomaterials. A capping agent is…

Q: What is the approximate density of 1M HNO3 aq?   Thank you for your help!

A:

Q: What are the potential errors that could occur when using the Kjeldahl method to determine the…

A: Kjeldahl method principle : Strong acid helps in the digestion of food and liberates nitrogen which…

Q: A sugar solution contains 19% sucrose by mass. What is the mass of the solution if it contains 78.01…

A: Mass percent or weight percent of a solution is the mass of the solute by the mass of the solution…

Q: What is efflorescence? Give an example?

A: The structure of chemical compound can be represented as structural formula. A structural formula…

Q: Crystalline hydrate is not a drug: A) Iron (II) sulfate B) Copper (II) sulfate B) Magnesium sulfate…

A: About crystalline hydrate:

Q: Distinguish among the terms solution,solute, and solvent.

A: A solution is a homogeneous mixture of two or more substances and the particle size is usually…

Q: In an Erlenmeyer flask, 25.75 grams of potassium nitrate was dissolved thoroughly to prepare a…

A: a.)   Moles of potassium nitrate = given mass ÷ molar mass = 25.75 ÷ 101 = 0.255 (mass = density X…

Q: Explain, in terms of the composition, why sample A represents a pure- substance. * B 8.

A: Those substances which have mass and occupies space is known as matter. Matter can be classified…

Q: Consider Palmitic acid C16H32O2, a common fatty acid used in the manufacture of soap. A solution of…

A: Given, Weight of palmitic acid =112 g Volume of benzene(solvent) = 725 mL density of the solution…

Q: In a solution, there is 1 g of NaCl for every 5 g of water. What is the ratio of sodium to water?

A: Ratio of sodium to water is the amount of sodium divided by amount of water .

Q: a) What mass of strontium nitrate (Sr(NO3)2) would be required to prepare 2.000 L of a 0.0180 M…

A:

Q: A 45.40% ferric oxide needed 0.7519 gram of an impure sample of iron ore. The analyte then required…

A:

Q: The analysis of a sample of the mixture obtained during the industrial preparation of nitric acid…

A: This problem can be solved from the basic physical chemistry problem.

Q: When do you use Roman Numerals in naming an ionic compound and give two examples? What is the…

A: a) To explain: When Roman numerals are used in the naming of ionic compounds.

Q: The most common minerals found in soils are combinations of which four elements, which are also the…

A: A question about elements that is to be accomplished.

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

A: The blanks are filled below:

Q: A sample of 10 ml of a solution of KBr has a mass of 12.60g. When the solution evaporates, the…

A:

Q: Marble is composed primarily

A: CaCO3 is an ionic compound thus it gives ions when dissolved in water. Dissociation is as: Ksp…

Q: What volume of 1.44 M KMN04, in liters, contains 292 g of solute? Volume = L. %3D

A: Given that, Molarity of KMnO4 = 1.44 M  Molar mass = 158.034 g mol-1 Mass of KMnO4 = 292 g  Volume…

Q: What is the mass percentage of Na in NaNO₃?

A:

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: . potassium carbonate + barium nitrate

A: The reactants given are  1) Potassium carbonate i.e K2CO3  2) Barium nitrate i.e Ba(NO3)2

Q: Cocaine (C17H21O4N) is a natural substance found in the leaves of the coca plant, which has been…

A: -

Q: Is a solution a homogeneous or a heterogeneous mixture?Give an example of an aqueous solution.

A: Homogenous mixtures are those mixtures in which there is a uniform distribution of components…

Q: What chemical concentration is being analyzed in this experiment. a. The amount of sodium…

A: "Since there are multiple sub-parts in this question and it is not mentioned that which one has to…

Q: A substance which cannot be broken down by distillation, electrolysis or heating is most likely c. a…

A: elemental substance is the class of pure substance that can not be separated in to two or more…

Q: placed

A: Dear student this question is related to basic chemistry.

Q: 3. What is the mass percent of each component in the mixture formed by adding 12 g of calcium…

A:

Q: What is the mass of sodium iodide in 50.0 mL of 2.63 x 10 -2 M NaI( aq)?

A: Volume = 50.0 mL = 0.050 L Molarity = 2.63 × 10-2 M  Mass of NaI = ?

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

A:

Q: 50.0 kg mixture of salt and water is 15.0% (by mass) salt. Give the mass of the salt and water in…

A:

Q: If a student calculated that 0.0035 moles of acetic acid present in a 5.0mL sample of vinegar. Then…

A: given: moles of acetic acid = 0.0035 moles molar mass of acetic acid = 60.052 g/mol mass of acetic…

Q: Fluoridation is the process of adding fluorine compounds to the drinking water. Fluoridated water…

A: The concentration term 1 ppm means that there is 1 mg present in 1 L solution. 1 gallon =3.78541 L…

Q: Write chemical equations for each of the following chemical and physical processes: (a)…

A: given all the statements, write the equation

Q: 1. Calculate the molar mass of the following compounds. a. magnesium phosphate b. sodium sulfide c.…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub- parts for…

Q: A solution is prepared by dissolving 125 g of NaCl in enough water to make 780 mL of solution.…

A: