What is the percent by mass of 25 g of sodium chloride dissolved in 100 g of water?

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: The vinegar that you can buy at a grocery store is actually a dilute acid solution that is 5.0% w/v…

A: Given that, the vinegar that you can buy at a grocery store is actually a dilute acid solution that…

Q: Granulated sugar (sucrose, C12H22011) has an average density of about 0.71 g/cm³. Calculate the…

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Q: Calculate the exact mass of NaOH needed to prepare 1.0L of 0.25N NaOH for standardization.

A: Concentration terms are used to express the amount of solute present in a given amount of solution.…

Q: A 30.7 g sample of a mixture of KNO3 and Mg(NO3)2 is treated with an excess of aqueous Na2CO3.  All…

A: Reactions between two salts in which metal ions exchange their anionic radicals is termed as double…

Q: 1.) NaOEt, EtOH 2.) HCI, H2O, heat

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Q: What is the mass percentage

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Q: 25 ppm of CaCO3 was found in the water sample obtained on the lake in the nearby town. Calculate the…

A: Given :  Concentration of CaCO3 = 25 ppm  Volume of water sample = 10 litres  Density of water = 997…

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: Camels store the fat tristearin, C57H110O6, in their humps. In addition to being a source of energy,…

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Q: Dissolved 2.5 gm of magnesium chloride (MgCl) in 250ml distilled water and then diluting (10 ml) of…

A: Given, Mass of MgCl2= 2.5 g Volume of distilled water =250 mL

Q: Sulfur trioxide dissolves in water to make sulfuric acid, H2SO4. a. Write a balanced chemical…

A: While writing balanced chemical equation, we have to make sure that both the reactant and product…

Q: The molar ratio of CO2 and H20 in the complete combustion of a hydrocarbon 'X' is 10: 8. What is the…

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Q: 11.A sample of 10 g of potassium iodide is dissolved in a beaker. Then it is poured in a volumetric…

A: Given : A sample of 10 g of potassium iodide is dissolved in a beaker. Then it is poured in a…

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

A: Given question is related to analytical chemistry. Steps to solve the question: 1. Calculate the…

Q: The fat stored in a camel’s hump is a source of both energy andwater. Calculate the mass of H2O…

A: The reaction taking place is, Number of moles of fat can be calculated as follows, 1 kg = 1000 g

Q: What is the molarity of 1 kg of KNO3 (MW=101.11g) dissolved in 2.75 L of solution?

A: Molarity is the number of moles of solute present in one liter of solution. It is represented by M.…

Q: Muriatic acid is the commercial name for hydrochloric acid that can be purchased from hardware…

A: Consider the given information is as follows; Percent weight/weight = 33% Mass of HCl (solute) = 5.5…

Q: How many grams of CaCl2CaCl2 are needed to make 126.9126.9 g of a solution that is 39.539.5% (m/m)…

A: Solution concentration = 39.539% (w/w).That is 100g solution contains 39.539 g calcium chloride.

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: Give the number of grams of solutes and the number of grams of water that must be used to prepare…

A: we know that  1 % by mass solution is define as 1 g of solute and make up to  total mass of 100g of…

Q: Organic matter made up 59% of the particulate matter samples analyzed in the 2017 Lake Michigan…

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Q: What is the mass of precipitate produced by the reaction of 0.10 mol/L sodium hydroxide solution…

A: Reaction between CoCl2.6H2O and NaOH CoCl2.6H2O + 2NaOH ----------> Co(OH)2↓+ 2NaCl + 6H2O 1 mole…

Q: What is the molarity of NH4Cl in a 158.9mL aqueous solution containing 11.3g of NH4Cl? What is the…

A: We have to calculate Molarity in Question 1, and the mass percentage of ZnCl2 in Question 2.

Q: 4NO2(g)+O2(g)+2H2O(l) → 4HNO3(aq) The generation of the electricity used in a medium-sized home…

A: The given reaction is

Q: Write the balanced chemical equation for the combustion of the fuel in O2(g), with CO2(g) and H2O(g)…

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Q: A 15.2-g sample of sodium carbonate is added to a solution of acetic acid weighing 19.4 g. The two…

A: Soln

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

A:

Q: How many moles of CO2 are present in 180.9g? Round to 2 decimal places.

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Q: By separating mixtures by evaporation, how do I get the percentage mass of NaCl in the solution?…

A: The mass of solute in gram present in 100 g solution is known as the mass percent concentration of a…

Q: Write the chemical reaction of Iron Sulfide (FeS2) to create Sulfuric acid in mines. It reacts with…

A: It is used in the preparation of hydrogen sulphide gas.In hair dyes, paint, ceramics, bottles and…

Q: 1. Solid lithium hydroxide is used to remove carbon dioxide and is called a CO2 scrubber. This…

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Q: Do parts per million denote a concentration that is a mole ratio? Does the concentration of a…

A: ppm(parts per million) is mg/L.

Q: What mass of concentrated sulfuric  ( a 95% solution of H2SO4 by mas) is needed to prepare 500. g of…

A:

Q: Consider the following reaction at 25 °C: 3 Ni(s) + N2(g) + 3 H,0(g) → 3 NiO(s) + 2 NH3(g) Given the…

A: ∆H = 391.3 kJ/mol

Q: How much KCl and water  must be mixed to prepare 265. grams of a 11.5 % by mass aqueous solution of…

A: Given-> Weight of solution = 265 gm (m/m)% = 11.5 %

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

A: -

Q: the mass percentage of NaCl in a solution containing 1.50 g of NaCl in H2O ?

A: Given: Mass of NaCl (solute) =1.50g Mass of water (solvent) =50.0g To find: The mass percentage of…

Q: This

A: According to the question, a 235.2 g sample of ground water is analyzed for calcium. The Ca2+ in the…

Q: You are making 750 mL of a 0.7 M Ca(OH)2 solution.  How many moles of Ca(OH)2 will be added?  How…

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Q: What volume (in mL) of a soft drink that is 10.5% sucrose (C12H22O11) by mass contains 78.5 g of…

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Q: You buy some Kool-Aid mixture packets from the grocery store. You put 1.89 liters (L) of water in a…

A: Molarity is the number of moles of solute dissolve in 1 litre of solvent. It determines the strength…

Q: A 27.0 wt% solution of HBr in water has a density of 1.50 g/mL. Calculate the formal concentration…

A: We will first calculate formal concentration of HBr , then answer the remaining questions.

Q: Caffeine occurs naturally in tea leaves and coffee beans. Pure caffeine (mp 236°C) is a white…

A: Given:  Mass of crude coffee beans along with caffeine = 8.78 g  Mass of caffeine isolated after…

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: 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: What is the mass percent of solute for: a.7.6 grams…

A: Mass percentage is defined as the total mass of the substance(solute) divided by total mass of the…

Q: . Gypsum has the formula CaSO4?2H2O. Plaster of Paris has the chemical formula CaSO4?12 H2O. In…

A: For determining the amount of product, the mole ratio of reactants in a balanced reaction must be…