falauing a) Haw maney moes of water are praduced fram the reaction, when 275 kj of enerey is given df? 4 NH3 + 302 +2 Nz + G HzO AlH =-1530 KJ

Q: 35.0 g MgBr, in 220.0 mL of solution Express your answer with the appropriate units. HÀ M = Value…

A: Answer Part C)  Mass of MgBr2 = 35.0 g  Volume of solution = 220.0 ml  ...Or  because 1L = 1000 ml…

Q: The number of moles of (CO:) gas present in 44.8 cm' at standard temperature and pressure (STP)…

A: Molar volume of a gas is the volume covered by 1 mol of it. Number of moles =volume of gasmolar…

Q: Magnesium will burn in air to form both Mg3N2 and MgO. What mass of each product would be found if…

A:

Q: Experiment 11: Decomposing Baking Soda 7. A student collects the following data when decomposing an…

A: The decomposition reaction involves the breaking of a larger molecule into smaller molecular units.…

Q: A homogeneous mixture is made by dissolving 4.23 grams of solid potassium cyanide in 1000 g of…

A: It is given- 4.23 grams of Potassium cyanide is added to 1000g of water and it makes a homogeneous…

Q: An unknown amount of acetylene gas occupies 12.40 mL. When the amount of this gas is changed to 0.57…

A:

Q: A chemist measured the concentration of a solution three times and obtained the following results…

A: Accuracy and precision are two important terms as far as measurement is concerned. Accuracy means…

Q: A chemist makes 770. mL of aluminum sulfate (Al, (SO,),) working solution by mol adding distilled…

A: Answer: concentration of the chemist's working solution is 0.589 mol/L

Q: O CHEMICAL REACTIONS Using molarity to find solute mass and solution volume Brittney v A chemist…

A:

Q: 2o dreps = I mi I drop=to mis0,08ML Mores H,u- Mass =05- a,77x103 MMall 18.02 Cle.088413 るってて。) If…

A: Given the number of water molecules to be lined up = 1.67*1021 molecules Given the distance of 1…

Q: Before investigating the scene, the technician must dilute the luminol solution to a concentration…

A:

Q: You have a 2.00 × 10−4 M solution of HNO3 at 25 °C. What is [OH−] in this solution?  A.  2.00 ×…

A:

Q: 200g of the 40 % methanol by mass is combined with 150 g 70% methanol by mass are mixed in a…

A: Given,  When combined 200 g. of the 40% methanol by mass and 150 g. of 70% methanol by mass, the…

Q: What is the most common way that energy is exchanged with the environment during a chemical…

A: The amount of heat required or released in a process is known as the heat change of the process.…

Q: Assuming that the natural gas is pure methane, CH4, write a balance chemical equation for the…

A: Given Reaction of methane with black copper oxide and red copper oxide to form copper metal , water…

Q: 1.A

A: Given information: volume of HNO3 = 2.3 L volume of water = 5.5 L Concentration of HNO3 = 3.1 M

Q: The limiting reactant will always have the lesser volume of the reactants. True False

A: Limiting reactant is one among the reactants which has less stoichiometric value that is it has…

Q: A student used 10 mL water instead of 30 mL for extraction of salt from mixture. How may this may…

A: Solubility of substance is defined as mass of  solute dissolve per liter of the solution.

Q: 5 A,B,C,D

A:

Q: A chemist adds 40.0 mL of a 0.083 mmol/L sodium thiosulfate (Na, S,0,) solution to a reaction flask.…

A:

Q: a) If the temperature inside your house is 25° Celsius, while the temperature inside the freezer is…

A: Charles' law states that volume of gas is directly proportional to the temperature of the gas at…

Q: The quantity 26.0 kJ is equal to how many calories?

A: We have energy as 26.0 KJ . We have to convert it to Calorie .

Q: 5 1.5 points Potassium Chlorate decomposes into potassium chloride and oxygen gas. How many grams of…

A: 5) Weight of potassium chlorate = 8.40 g.We have to find out the amount of oxygen(O2) produced when…

Q: The aluminum present in 1200 grams of an impure sample of aluminum ammonium sulfate was precipitated…

A: The question is based on reaction stoichiometry.We need to calculate percentage of each element…

Q: A chemist prepares a solution of zinc nitrate by measuring out 78. umol of zinc nitrate into a 100.…

A: Given: The number of micromoles of zinc nitrate present = 78 μmol The volume of the solution = 100…

Q: Two substances A and B are combined to form a product C. The formation of the product is…

A:

Q: In the following situation explain its validity. Mr. Soon Shiong decides to show the class a…

A: Given: Mr. Soon Shiong decides to show the class a chemical reaction by taking 500g of a white…

Q: Two substances A and B are combined to form a product C. The formation of the product is…

A: Given: The formation of 10 lbs of product C takes place in 45 min. The time taken for the formation…

Q: 93.6g to ng and 93.6g to tons with the set up

A: Given : To convert 1) 93.6 g to ng i.e nanograms and 2) 93.6 g to tons.

Q: Suppose 0.690 g of lead (II) nitrate is dissolved in 300. mL of a 29.0 m M aqueous solution of…

A:

Q: 6. Calculate the formal of each atom in cyanide. . =N 7. Using formal charge choose the best Lewis…

A: Given : 6). Cyanide ion 7). N2O To Find : 6). Formal charge on each atom 7). Best lewis structure…

Q: 2Na(1) + CaCl,(s) → Ca() + 2NaCl(s) Na (s) → Na (g) The following process occurs in a high school…

A: A chemical change occur when a chemical reaction occurs which is characterized by some bond break…

Q: Understanding the definitions of heat and work A mixture of gaseous reactants is put into a…

A:

Q: A student was answering the following question and made a mistake. Identify the mistake and correct…

A: Given data,Mass of solution=350gPercentage by mass=58%

Q: Lowest Electronegativity: Highest lonization Energy: Largest Atomic Radius a. F Fe Sr a. CI Ga TI a.…

A: 1. Lowest electronegativity group highest electronegativity lowest electronegativity Order of…

Q: scientist conducted a practical of inserting a few blocks of ice into a kettle and turned the kettle…

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Q: Calculate the volume in milliliters of a 1.9M silver perchlorate solution that contains 50.0 g of…

A: First find out the number of moles for the given compound. Using the calculated moles and molarity,…

Q: only SO. and sulfuric acid weighs

A: According to the question, we need to determine the percentage of sulfuric acid and SO3 in the…

Q: A solution of CaCl, in water forms a mixture that is 32.5% calcium chloride by mass. If the total…

A: Mass percent :- The mass of a component in grams present in 100 grams of a mixture is defined as…

Q: A 0.3256 gram sample sodiun oxalate ( GEW= 67) was used for the standardization of KMn04 and…

A: Given,  Mass of sodium oxalate in g = 0.3256 g  Gram equivalent weight of sodium oxalate = 67…

Q: A student conducts an experiment using an unknown hydrate and obtains the following data Crucible…

A: Given - Crucible =  24.31g Crucible+ hydrate = 29.31g Crucible+ anhydrate =  28.26g Mg % = 29.44% S…

Q: Acetone has density of 0.788gmL-1. How many molecules of acetone are present in 15mL of acetone?

A: The number of molecules or atoms present in the one mole of the substance is equal to the Avogadro…

Q: How many grams of MgF2 are needed to prepare 673.9 mL of 0.135 molar aqueous MgF2? Put answer in box…

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Q: Calculate the composition of the gaseous mixture obtained when 4.05 mol of carbon dioxide is exposed…

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Q: Wate is the Normality of hydrochloric acid contains 37.4 grams of HCl gas in one liter of its…

A: Given: The volume of the solution(V)=1 L The given mass of HCl(m)=37.4 g The molar mass of HCl=…

Solutions

Solutions can be considered as homogeneous mixtures which contain two or more than two chemical substances. The chemical substance which is the greater part is defined as solvent. And the chemical substance that is dissolved in a solvent is referred to as solute. Solution chemistry plays an important role in chemistry since it supports many commercial applications of solutions.