QUESTION 3 Osmium has a density of 22.6 g/cm³. The mass of a block of osmium that measures 0.662 m x 1.08 m x 0.0529 m is (Write your answer in scientific notation and round to 3 significant figures. Do not include units.) 9

Q: What volume of carbon dioxide is produced when 94.8 g of calcium carbonate reacts completely…

A: Given  Mass of CaCO3 =94.8 gm Molar volume 1 mole=22.4 L

Q: 11. The reaction shown below will give a product that is soluble in excess 5% alkali. 01510 CI + H…

A: The reaction of benzenesulphonyl chloride with amine(1degree,2degree and 3 degree) Used to test the…

Q: Liquid octane (CH₂(CH₂) CH₂) will react with gaseous oxygen (0.) to produce gaseous carbon dioxide…

A:

Q: Which of the following types of organic reactions occurs when an aldehyde forms a carboxylic acid?…

A: In the given question, find out the reaction type when aldehyde forms a carboxylic acid.

Q: A 2.85 g sample of a food substance was burned in a calorimeter that had a heat capacity of 9.84…

A: Given: The mass of the food substance burned = 2.85 g The heat capacity of the calorimeter = 9.84…

Q: A 0.5964 g sample of a pure soluble chloride compound is dissolved in water, and all of the chloride…

A: The reaction of chloride with Ag+ of silver nitrate is given below. Cl-(aq) + Ag+(aq) → AgCl(s)

Q: 16.9°C and 753 mmHg. It is released and rises to an altitude of 2.36 km, where the pressure is 625…

A: We have to write net ionic equation.

Q: Calculate the pH of a solution made by mixing 200.0 mL of 0.64 M hydrocyanic acid (Ka = 4.9 × 10−10)…

A: Given: The Ka for HCN = 4.9 × 10−10 We have to calculate the pH of a solution made by mixing 200.0…

Q: Which of the following is the correct formula for the alkane that contains ten carbon atoms? a) Cio…

A: Alkanes are a series of compounds that contain carbon and hydrogen atoms with single covalent bonds.…

Q: Which of the following will be spectator ions in the reaction in aqueous solution of barium nitrate…

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Q: Listen Which one of the following species has the same electron configuration as an atom of argon?…

A: First we need to find the no of electron in each of the ion given by adding or substracting with the…

Q: A cylindrical glass tube 12.7 cm in length is filled with mercury. The mass of mercury needed to…

A:

Q: How many liters (L) of a 0.750 M solution of NH4NO3 is needed to make 3.75 L of a 0.125 M solution…

A:

Q: For the reaction: 2NO2 (g) + O2 (g) = 2NO3 (g) If 0.0500 mole of NO₂ (g), 0.122 moles of O₂ (g), and…

A:

Q: . 2. What is meant by pH and how is it measured? What do all acids have in common?

A: The abbreviation of pH stands for potential hydrogen. It is the measurement of active hydrogen ion…

Q: True or false? Arrhenius postulated that acids produce hydrogen ions in aqueous solution, whereas…

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Q: Question 18 Tools Question 18 Which of the following substances would give a pH test result greater…

A: Acids are those substance which gives H+ ion when dissolved in water while bases are those substance…

Q: For each of the following chemical symbols, determine the number or element symbol that goes in the…

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Q: Hydrofluoric acid, HF (aq), cannot be stored in glass bottles because silicates in the glass are…

A:

Q: 5. Given the reaction: 2NO (g) N₂ (g) + O₂ (g) Calculate the concentrations of N₂ (g), O₂ (g), and…

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Q: Balance this equation using the smallest possible integers, NO + NH3-N₂ + H₂O. What is the…

A: A chemical reaction follows the law of conservation of mass. According to the law of conservation of…

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A: The given calculation involves multiplication operation. In the multiplication, the resultant number…

Q: You transfer a sample of gas at 17°C from a volume of 4.44 L and 1.10 atm to a container at 37°C…

A:

Q: The decomposition of acetaldehyde is a second order reaction with a rate constant of 4.7 × 10−2 M−1…

A: Given: The rate constant for the decomposition of acetaldehyde = 4.7 × 10−2 M−1 s−1 We have to find…

Q: What is the pH of a solution of 0.5 M K2CO3 and 0.45 M NaHCO3? pKa of HCO3- = 10.25. Enter your…

A:

Q: Using the activity series, a) What are the outcomes of the following reactions? i. Cu(s) + AgNO3(aq)…

A: The activity series of metals is a series of metals arranged in decreasing activity. The metals…

Q: What mass of solute is contained in 255 mL of a 0.790 M ammonium chloride solution?

A:

Q: As the moving proteins rotate, they put pressure on the beta protein. This pressure results in O…

A: A) option d -The formation of ATP from ADP and Pi Explanation:- The rotation of the F1 section of…

Q: draw a diagram for the valence bond theory that shows the hybrid atomic orbitals and/or the atomic…

A: Ketene structure.

Q: Consider the reaction of 75.0 mL of 0.350 M C5H5N (Kb = 1.7 x 1079) with 100.0 mL of 0.425 M HCI.…

A: Here, we have to write the net ionic equation for the reaction of 75.0 mL of 0.350 M C5H5N with…

Q: Consider the following reaction, where X represents an unknown element: B4X3(s) + 3XO2(g) 6X(s) +…

A: Given, chemical reaction-  6X(s) + 2B2O3 (s) --------> B4X3(s) + 3XO2(g)   155 g of X reacts…

Q: Describe what is meant by chemical kinetics • Describe the factors that affect the rate of chemical…

A: We need to explain what is chemical kinetics and the factors affecting chemical reaction. Then we…

Q: Use the standard reduction potentials in Appendix L Links to an external site.to find the standard…

A: Redox reaction involves the transfer of electron from one species to another species. Here we are…

Q: ew y Drive omputers mared with me ecent arred ash orage of 100 GB used storage M- Sug 3 What is the…

A: Organic compound under different reaction condition reacts to form different product m Here we are…

Q: For the following reaction, 9.97 grams of glucose (C6H12O6) are allowed to react with 15.1 grams of…

A:

Q: One solution contains 0.15 mol/L NaCl and 0.0034 mol/L Pb(NO3)2. Does a precipitate form? Write the…

A: Solubility product can be defined as the product of concentration of reactants at equilibrium of…

Q: CHEMISTRY (Please write the complete solution legibly. No long explanation needed. Answer in 2…

A: A) 350 mL 1.0 M H2SO4     150 mL 6.0 M H2SO4   To prepare 500 mL of 2.5 M H2SO4, we need a total of…

Q: The correct name for an aqueous solution of HC₂H3O₂ is Ohydrocarbonate acid hydrocarbonic acid…

A: In this question, we will give the correct name of the given molecular formula of the compound.…

Q: CHEMISTRY (Please write the complete solution legibly. Choose the correct answer. No long…

A: Specific heat capacity of a substance is the amount of heat required to raise the temperature of…

Q: DF OFFIC ANSCR CH3 Classify the amino acid with the R group -CH2-CH-CH3 according to its polarity. O…

A: These amino acids are nonpolar

Q: Which of the following conversion factors is incorrect? 1 in/2,54 cm 1 yd/1.094 m 1 kg/2.205 lb 1…

A: The given question contains units of length and mass. We have to check whether each option given is…

Q: Findthe noble-gas electron configuration for Ir^3+

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Q: How did you get that: The solution of HCl is given to have 17 g of HCl present in 100 g of the…

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Q: Draw Lewis structures, 3-D structures, and the name of the electron group geometry and molecular…

A: Number of electron pair on central atom (bp + lp)C Hybridization Molecular geometry Bond angle…

Q: Calculate the amount of phycocyanin in Sample 1 in mg where A620=0.233   and A650=0.061, using a…

A: Given that: A620 = 0.233 A650 = 0.061 Dilution factor = 100 Total volume of the extract = 45 mL

Q: You are given the following boiling point data. Which one of the liquids would you expect to have…

A: We are given a boiling point data of certain chemical compounds and asked to comment on the vapour…

Q: How many grams of Cu(OH)2 will precipitate when excess KOH solution is added to 69.0 mL of 0.584 M…

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Q: For the equilibrium: 2 BrCl (g) Br2 (g) + Cl2 (g) Calculate the concentration of bromine gas,…

A:

Q: Which of the following compounds has the highest boiling point O co NH₂ O CO₂ OCH4 At least two of…

A: The Boling point of a compound depends on the intermolecular forces present in between the…

Q: 10 Listen Rank the following bonds from least polar to most polar. Si-CI, P-Cl, Mg-Cl, and S-CI a)…

A: Cheqk electronegativity .  Correct option C

Matter and Measurement

In the universe, there is matter, energy, and void space. The universe contains energy and void space. The definition of matter can be considered as something which possesses mass and consumes space. Chemistry is that branch of science which deals with the study of matter. Under chemistry, nature, composition, and the changes occurring to matter are discussed.