Consider the fictional element A (which has a molar mass of 7.00 g/mol) and the fictional element D (which has a molar mass of 13.00 g/mol). Suppose that 12.30 grams of an unknown hydrate of AD3 are heated until a constant mass of 6.90 grams is reached. How many waters are in the empirical formula of the hydrate? (For example, if the empirical formula were Na2SO4 ⋅ 10 H2O, your answer would be 10.)

Q: 6.15×1023 KK atoms Express your answer using three significant figures.    How many moles of atoms…

A: We know 1mole = 6.022x1023  So we can easily find the number of moles by using- Number of…

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: O₂(g) + 2 H₂(g) → 2 H₂O(1) - Assume 0.250 mol O₂ and 0.810 mol H₂ are present initially. After the…

A: The stoichiometry of the balanced chemical reaction states that one mole of oxygen reacts with two…

Q: Mg(s) + 2 HCl(aq) −−−→ MgCl2aq) + H2(g)   given that the mass of magnesium is 0.030 g, find the…

A:

Q: Calcium Chloride CaCl2 has a molar mass of 110 grams per mole. 11.0 grams of CaCl2 dissolved in 500…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: Metal hydrides react with water to form hydrogen gas and metal hydroxide. For example, SrH₂(s) +…

A:

Q: please answer #11 on attachment document.  The empirical formula of ethylene glycol is:

A:

Q: Butane has the chemical formula C4H10 and is a component of natural gas. When butane burns, it…

A:

Q: A 6.7283 g sample of a hydrate of MgSO4 was heated to drive off all of the water of hydration. The…

A: The first step is to calculate the mass of water that was lost when the hydrate was heated. This can…

Q: Calculate the mass percent of 2.50 moles of naoh in 0.900l of water at 25degress Celsius (the…

A: Given: The number of moles of NaOH is 2.50 mol. The volume and the density of water are 0.900 L and…

Q: How many moles of water vapor are produced for every mole of methane consumed in the combustion…

A:

Q: The balanced equation for the combustion of butane, CAH10, is shown below. For your convenience, the…

A:

Q: (3) Barium chloride has a hydrated form, BaCl2 XH2O. A 7.25 g sample of the hydrate lost 1.07 g of…

A:

Q: A classic SUV features a 204 L gas tank. Assuming a molecular formula of C8H18 for gasoline and…

A: Given: Volume of tank = 204 L Density of gasoline = 759 g/L. And all the gasoline is C8H18.

Q: Metal hydrides react with water to form hydrogen gas and the metal hydroxide. For example, SrH2(s)…

A: When two reactive compounds are mixed, then they react according to the stoichiometry of the…

Q: Consider the reaction: C4H10(g)+O2(g)→CO2(g)+H2O(g)C4H10(g)+O2(g)→CO2(g)+H2O(g). Part A: How many…

A:

Q: A local water retention pond was found to have elevated mass concentration of mercury of 14 ng per…

A: Given data: Concentration of mercury = 14 ng/L Volume of water in swimming pool = 1250 m3   Known…

Q: A mixture with a total mass of 3.12 g contains sucrose (C6H1206, 342.30 g mol-1) and ethyl alcohol…

A: Answer is explained below.  Given that, volume of CO2 = 3.04 L.  Pressure of H2O = 42.20 mm Hg =…

Q: What is the percent (by mass) water CaSO4.2H22O?

A: Here, we have calculate % by mass of H2O in CaSO4.2H2O.

Q: Uranium is used as a fuel, primarily in the form of uranium(IV) oxide, in nuclear power plants. A…

A:

Q: Metal hydrides react with water to form hydrogen gas and the metal hydroxide. For example, SrH2(s) 1…

A:

Q: Consider the fictional element A (which has a molar mass of 7.00 g/mol) and the fictional element D…

A: Given : Molar mass of A = 7.00 g/mol. Molar mass of D = 13.00 g/mol. Mass of hydrate compound of AD3…

Q: Manganese(IV) oxide and aluminum metal react at high temperatures to form manganese metal and…

A:

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

A: The formula used to find out the volume and strength or concentration in the case of volumetric…

Q: Suppose a 500. mL flask is filled with 1.3 mol of CH4, 1.2 mol of H₂S and 1.5 mol of CS₂. This…

A: We will first calculate the initial concentration of the given species. Concentration can be…

Q: A student decides to conduct an experiment by using two different flasks and two different gas…

A: Average kinetic energy and rms velocity calculation:

Q: Consider the beer Samual Adams Boston Lager, that has an approximate alcohol content of 4.5. Which…

A:

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

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

Q: Aqueous sulfuric acid (H,SO4) will react with solid sodium hydroxide (NaOH) to produce aqueous…

A: Given : mass of H2SO4 = 42.2 g mass of NaOH = 17.0 g The reaction taking place is  NaOH (aq) + H2SO4…

Q: 1. Calculate the theoretical percentage of water for the following hydrates. (a) manganese(II)…

A: “Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: How many moles of hydrogen carbonate need to decompose to produce 8.70 x 1023 molecules of carbon…

A: Hydrogen carbonate = HCO3- Decomposition reaction of hydrogen carbonate occurs with H+ - HCO3- + H+…

Q: 6 NaOH + 2AL --> Na3 ALO3+3H2 what volume of hydrogen gas can be prepared from 5.40 grams of…

A: Given that : Mass of aluminum = 5.40 g The molar mass of Aluminum is 26.98 g/mol. The given balanced…

Q: Benzene (C6H6) is a liquid with a density of 0.874 g cm-3. It reacts with oxygen to give carbon…

A: Density of Benzene = 0.874 g cm-3 Volume of Benzene = 21.3 cm3

Q: Ascorbic acid, or vitamin C (C6H8O6), is an essential vitamin. It cannot be stored by the body and…

A:

Q: Which of the following statements is correct? A 0.1245 M HCI solution contains 0.1245 moles HCl per…

A: Molarity (M) is the number of moles of solute present in per litre of the solution. Mathematically…

Q: How many moles of Al are necessary to form 28.6 g of AlBr₃ from this reaction: 2 Al(s) + 3 Br₂(l) →…

A: Given , mass of AlBr₃  = 28.6 g Thus, moles of AlBr₃  = mass of AlBr₃ molar mass of AlBr₃  = 28.6…

Q: 4. How many moles of water are present in a 20.00 gram sample of lithium permanganate, LiMnO4-3H2O?

A: by using mole concept we easily determine the mole of element are present in reactent and products.

Q: What is the molarity of a solution that has 5.024 X 1023 atoms of Glucose (C6H12O6)?

A: Assuming there is one litre of solutionGiven5.024x 1023 atoms of glucose are present

Q: If 6 moles of Si and 6 moles of N2 are combined in a reaction flask, what remains in the reaction…

A:

Q: (a) How many moles of CO, contain 3.26x1024 molecules? mol CO2 4.0 (b) What number of moles is…

A:

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.