31.7 grams of CaCO3 were dissolved in enough water to give 900.1 grams of solution. Calculate the percent by mass of this solution

Q: Suppose a 500. mL flask is filled with 0.60 mol of NO and 2.0 mol of N0,. The following reaction…

A:

Q: a complex wit

A:

Q: Calculate (in grams) how much KCl is required to make up 25mL of a 1M solution (the MW of KCl is…

A: Given:: MW of KCl = 74.55 g mol-1 Volume = 25 ml = 0.025 L  Molarity = 1M = 1 mol L-1 mass of KCl =…

Q: Which of the following nuclides would be most likely to undergo beta decay? Ste n, uy ng Uratacle…

A:

Q: List five common household or products in your workplace that contain a substance that could be a…

A: The substances which gives pH more than 7 on the pH meter means that the substance will give…

Q: Consider the reaction  H2(g)  +  Br2(g)   2 HBr(g). If the partial pressures in an equilibrium…

A:

Q: 1. A certain amount of gas has a volume of 5000ml. at 760mmHg. What will its volume be if the…

A:

Q: the final volume equals the initial volume of the solution plus the volume of NaOH solution added. ?

A: Given, Molarity of Acid(M) = 0.4500 M Volume of Acid(V) = 78.9 mL mmol of Acid =  M × V   = 0.4500 ×…

Q: (CH3)CCH2B

A: IUPAC name can be obtained by looking at no of carbons, groups attached with which

Q: CH3 CH3 CH2 H3C-CH-CH2– CH – CH –CH2–CH3 CH3

A: 1. Select the principle carbon chain 2. Numbering 3. Naming (prefix + word root + suffix)

Q: Consider the equilibrium at 25 °C 2 SO3(g)   2 SO2(g) + O2(g)          Kc= 3.58 x10-3 Suppose that…

A:

Q: A solution contains 0.0120 M Pb² + (aq) and 0.0120 M Sr2 + (aq). If you add SO-(aq), what will be…

A:

Q: Entropy is a physical property of matter that has few practical uses in chemical engineering and in…

A: Entropy is physical property of matter that has few practical uses in chemical engineering and in…

Q: Which of the following equations does not represent an oxidation-reduction reaction? O 3AI + 6HCI…

A:

Q: Help with the structure of 2-chloro-2-phenylacetic acid

A: Given :- name of compound = 2-chloro-2-phenylacetic acid  To draw :- structure of compound

Q: Which of the following compounds will have the highest molar solubility in pure water? O MgCO3, Ksp…

A:

Q: The correct Empirical formula for this compound is Select an answer and submit. For keyboard…

A: Mass of Mg + Mass of O = Mass of product Also, No of moles = Mass / Molar mass

Q: A chemist titrates 50.0 mL of a 0.5648M potassium hydroxide (KOH) solution with 0.2574M HCl solution…

A: we have to calculate pH at equivalence point foe the titration

Q: It is well known that any radiocarbon takes several decades to disintegrate. In an experiment, only…

A:

Q: 8. You are asked to make 250.0 mL of a 1.5 M solution of H2SO4 in lab. You have a stock solution of…

A: Please note- As per our company guidelines we are supposed to answer only one question. Kindly…

Q: 3µL of a solution of 295mM EDTA is added to 997µL of water.  12µL of this solution is then added to…

A: Given,  When 3µL of a solution of 295mM EDTA is added to 997µL of water.  12µL of this solution is…

Q: For the reaction 2 NO2(g) = 2 NO(g) + O2(g) Kp = 1.11 x 10-5 at 200 °C. A 2.50 L vessel at 200 °C is…

A:

Q: For the reaction PCI:(g) = PCI3(g) + Cl2(g) Kp = 1.45 x 10-ª at 160 °C. A 1.00 L vessel at 160 °C is…

A:

Q: Write the pressure equilibrium constant expression for this reaction. 2 H,(g)+O,(9)→2H,0(1) ロロ

A:

Q: A researcher wants to determine the concentration of beta-carotene in carrots. She obtains a 0.689 M…

A: Given: Concentration of stock solution (M1) = 0.689 M Dilution-A: Volume of stock solution (V1) =…

Q: Question 9 An irregularly shaped metal part made from a particular alloy was galvanized with zinc…

A: Given :  Current (I) = 2.599 A  Time = 1 hour = 60 x 60 = 3600 sec  Thickness of layer = 0.01123 mm…

Q: Which of the following is a characteristic property of a complete combustion flame, as compared to…

A: Complete combustion takes place in the presence of a sufficient amount of oxygen while an incomplete…

Q: Solve it asap

A: Here 1.75 g of Mg was mixed 125 ml of 0.2 M HCl solution at 25°C and 1.06 atm pressure.We have to…

Q: At 25 °C, how many dissociated H* ions are there in 345 ml. of an aqueous solution whose pH is…

A:

Q: A chemist must prepare 700.0 mL of hydrobromic acid solution with a pH of 2.00 at 25 °C. He will do…

A:

Q: mass

A:

Q: ΔΗ 92. kW J AS = 164. K - 2NH, (2) ) – N, (e) + 3H, (g) AG = Which is spontaneous? O this reaction…

A:

Q: 3. During the neutralization of hydrochloric acid, HClag), by sodium carbonate, Na,CO,), a gas is…

A:

Q: d.) Calculate for the pressure exerted by a Xe gas with a molar volume of 2.45 dm3 mol at 0°C if a.)…

A:

Q: AsO,3 + I2 → AsO,3 + I (basic) Cr + CIO, → CrO2 + CIO;- (basic)

A: Balanced the given redox reaction under basic condition---

Q: जजर जमर ह षजट ०ली वानक बजतार कात गट यिना वालाण नज०्वर P४८্তन्ज group pocs ent mame im वशरानाल ?

A: Write structure and functional group in Aspirin ?

Q: a gas is confined to a cylinder under constant atmospheric pressure. when 600 J is added to the gas,…

A: Given that -  Amount of heat added = 600 J  Work done on the system = 140 J    Then from first law…

Q: atoms

A:

Q: at a particular temperature, K = 9.1 × 10–7 for the following balanced reaction: 2NO2 (9) → 2NO(g) +…

A: Step by step solution are below

Q: Solid copper sulfide and silver nitrate react to form copper (II) nitrate and solid silver sulfide.…

A: Solid copper sulfide and silver nitrate react to form copper (II) nitrate and solid silver sulfide.

Q: Identify the functional groups of the different organic molecules. Indicate classification is there…

A:

Q: Part II- Moles 3) What is a mole? Describe the mole in terms of atoms, molecules and grams. DiscUss…

A: A mole is defined as 6.02214076 × 1023 of an atom, molecule, ion, or any other chemical unit. 1 mol…

Q: Define the final product. 3RCH,OH + 4C1O; + 6H;SO4 ? а. R H. O b. R 'R Ос. HO, O d. R Ое.

A: In this question, we have to identify the product formed.

Q: Experiment # 2: ELECTROCHEMICAL CELLS I. Overview II. Data and Results. A. Results and Observations:…

A: A. Results and Observations :  1. Voltaic Cell    OBSERVATIONS Cu - Al cell copper aluminium…

Q: Based on their respective van der Waals constants, which of these two gases: Xe (a = 4.137 L2 atm…

A:

Q: Write the empirical formula for at least four ionic compounds that could be formed from the…

A: A chemical formula of an ionic compound can be formed by criss-crossing the valencies of ions.

Q: Q4.Plot equilibrium thermal diagram of Ni-Cu binary alloy complete solubility phase diagram.

A: Answer - Phase diagram - A phase diagram  is a type of chart used to show conditions (pressure,…

Q: Use average bond energies (table in the hint) to compare the combustion energies of ethane,…

A:

Q: or the IMFA? or the volume occupied by the molecules? ed for the van der Waal's gas to agree with…

A: From the van der waal's equation  a) parameter which corrects the IMFA = a b) parameter which…

Q: rate law

A: