A solid mixture consists of 30.9 g of KNO3 (potassium nitrate) and 5.2 g of K2SO4 (potassium sulfate).  The mixture is added to 135 g of water. If the solution described in the introduction is cooled to 0 ∘C, what mass of KNO3 should crystallize? Enter your answer numerically in grams.

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: In the US, alcohol proof is equal to twice the percent of alcohol (ethanol) by volume, so for…

A: Percentage volume by volume: is one of the ways to express concentration of solution. Formula is:…

Q: Vinegar is sold as a standardized solution of 5.00% by mass acetic acid in water. Assuming the…

A: Given that vinegar is  5.00%  by mass acetic acid in water. i.e. 5 g of acetic acid (CH3COOH) is…

Q: You take 4 tablets of aspirin (a compound that contains carbon, hydrogen, and oxygen) and perform a…

A: The weight of each aspirin tablet = 5.51 x 10-4 lbs Convert the mass of a tablet into grams using…

Q: A chemist prepares a solution of copper(II) sulfate CuSO4 by measuring out 7.84g of copper(II)…

A:

Q: A chemist prepares a solution of silver(I) perchlorate (AgCIO 4) by measuring out 1.05 x 10° umol of…

A: When you talk about concentration in μmol/L that means no of micro moles present in one liter of…

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: 1. Balanced chemical equation Given;

Q: A chemist prepares a solution of potassium dichromate (K,Cr,0,) by measuring out 16. umol of…

A: Molarity or concentration of solution may be defined as the number of moles of given solute…

Q: How many grams of 50% nitric acid and water should be taken to prepare a 15% nitric acid solution of…

A: Note : Instead of 15% nitric acid solution , there should be 15g nitric acid solution. Given: Mass%…

Q: What is the mass % of propylene glycol in a 2.77 M solution of propylene glycol (MM = 76.09 g/mol)…

A: Mass percent shows the mass of solute present during a given mass of solution.  Mass percent is…

Q: Aqueous hydrobromic acid  HBr  will react with solid sodium hydroxide  NaOH  to produce aqueous…

A: Chemical reaction- It consists of reactant (starting material) and products (substances formed in…

Q: A saline solution used in intravenous drips for patients who cannot take oral fluids contains 0.92…

A: Given : Mass of NaCl : 7.7g Weight/Volume = 0.92 To calculate: volume of the saline solution.

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: 1. Given that : We have to write the balanced equation for the decomposition of mercury (II) oxide…

Q: A chemistry student must write down in her lab notebook the concentration of a solution of potassium…

A:

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: 150 to 140 130 120 110 100 NaNO 90 80 70 60 50 KCI 40 Nac 30 20 KCIO Ceso, O 10 20 30 40 50 60 70 80…

A: Solubility The amount of solute present in a 100 g of solvent is known as solubility. The solubility…

Q: 1) If 56.2 mL of BaCl2 solution is needed to precipitate all the sulfate ion in a 746 mg sample of…

A:

Q: Sodium carbonate is often added to laundry detergents to soften hard water and make the detergent…

A: Given,Concentration of Ca2+ = 3.8×10−3 M = 3.8×10−3 mol/LConcentration of Mg2+ = 1.1×10−3 M =…

Q: mass in grams of aluminum chloride

A:

Q: The great French chemist Antoine Lavoisier discovered the Law of Conservation of Mass in part by…

A: Balanced decomposition reaction can be written using reactants. And the amount of HgO must be…

Q: grams of aspirin tablets are dissolved in water and titrated with the NaOH from an initial volume of…

A:

Q: A student wants to make a 1.600 M aqueous solution of barium sulfate, BaSO4, and has a bottle…

A: To calculate the final volume of the solution for 1.6 M solution of BaSO4 containing 12.00 g of…

Q: . An aqueous solution of sodium carbonate, Na2CO3, is titrated with strong acid to a point at which…

A:

Q: A chemist prepares a solution of aluminum sulfite (Al₂(SO3)3) by measuring out 44. µmo! of aluminum…

A:

Q: Aqueous solutions of 16.7% by mass hydrogen peroxide, H202 (molar mass =34.016 g mol1) are used to…

A: Given that: Mass percent of H2O2 = 16.7% Density of solution = 1.06 g/mL

Q: A student wants to make a 1.600 M aqueous solution of barium sulfate, BasO4, and has a bottle…

A:

Q: A student added 1.28 g of sodium carbonate monohydrate and 1.28 g of calcium chloride separately…

A: Chemical equation of the given reaction is:                                      Na2CO3(aq) +…

Q: An analytical chemist weighs out 0.118 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: Knowing that 1 calorie = 4.184 joules and 1kWh = 3.6 x 106 Joules, convert the following: 2739…

A: Given: 1 calorie = 4.184 joules 1kWh = 3.6 x 106 Joules Toconvert: 2739 teraWh into nanocalories.

Q: What volume of 1.24 M KMnO4, in liters, contains 422 g of solute? Volume %3D

A: In order to find the volume of the solvent required we first write down the given data: Molarity=…

Q: A student determines the calcium content of a solution by first precipitating it as calcium…

A: 1000 ml 1M solution means 1 mol is present in 1000 ml solution.  So, moles of Ca(NO3)2 in 53 mL of…

Q: How many grams of a solution that is 76.85 % sucrose by mass, (%m/m) contain 110 g of sucrose,…

A:

Q: question 2 please

A: Given data:

Q: 1) Group 1 metals react almost instantly and violently with water, as a single replacement reaction…

A:

Q: An analytical chemist weighs out 0.050 g of an unknown triprotic acid into a 250 mL volumetric flask…

A: In an acid-base neutralization reaction, normality will be compared as the base is monobasic and the…

Q: A 9.33 % solution of sulfuric acid has a density of 1.07 g/mL.  What is the molarity (M) of this…

A: Given: The density of 9.33 % solution of sulfuric acid is 1.07 g/mL The mass percent is 9.33%

Q: . A concentrated perchloric acid solution is 65.8% HClO4 by mass and its density is 1.68 g mL−1.…

A: 65.8 g HClO4 in 100 g solution. Density = mass/volume  Volume of solution = 100/1.68 = 59.52 ml…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The final answer is reported in the same number of significant figures as does the error.

Q: A chemist prepares a solution of silver(I) perchlorate (AgClO,) by measuring out 2.37 x 10 umol of…

A: Given, Moles of AgClO4=2.37×103 micromol Volume =500.0 ml Molarity = ?

Q: A student needs to prepare 100. mL of 0.618 M Cu(NO3)2 solution.  What mass, in grams, of copper(II)…

A: The mass of required copper(II)nitrate is determined by using given volume and molarity.The molarity…

Q: The great French chemist Antoine Lavoisier discovered the law of conservation of mass in part by…

A: Answer: Ideal gas equation is shown below: PV=nRT Here: P=pressure of the gasV=volume of the…

Q: Describe any visual differences between the hydrated sample and the dried, anhydrous form. How would…

A: Mass of alum taken = 2.0 g Mass of water released = 1.48 g( the value calculated is correct) Mass of…

Q: You dissolve 7.01 mol of glucose into a total volume of 438 mL.  What is the molarity of glucose in…

A:

Q: Sodium carbonate is often added to laundry detergents to soften hard water and make the detergent…

A: Given,3.8×10−3 M in Ca2+ and 1.1×10−3 M in Mg2+ The average capacity of a washing machine is 24.5…

Q: A 0.2121-g sample of pure NaC,O, (134.00 g/mol) was titrated with 43.31 mL of KMNO4. What is the…

A: Normality can be obtained by multiplying the molarity of the KMnO4 solution with the number of…

Q: A student is diluting an aqueous NH4SCN solution for an experiment. The student starts with a 0.100…

A: The strength of an unknown solution can be calculated by the following formula: V1S1 = V2S2 Where,…

Q: An analytical chemist weighs out 0.206 g of an unknown monoprotic acid into a 250 mL volumetric…

A:

Q: How many grams of sodium carbonate are present in 25.7 mL of a solution that is 24.0% sodium…

A: Mass of solution can be calculated as follows:

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".