a b C 70 cm² to m²? 63 cm² to m²? 27 mm² to cm²?

Q: A student follows the following protocol for making a kinetics lab solution. mL 0.0165 M KBrO3 mL…

A: Given: The volume of 0.0165 M KBrO3 is 3.00 mL. The volume of HCl, water, and KI is 4.00 mL, 1.00…

Q: 3. In the following take Cv = 5 and Cp = 7 Btu/lbmole-°F for nitrogen gas. (a) Three Ibmoles of…

A: Cv = 5 Btu/lb mole-◦F Cp = 7 Btu/lb mole-◦F Number of moles =, n = 3 lb moles

Q: A box with a volume (V=0.05 m³) lies at the bottom of a lake whose water has a density of (1*10°…

A: The buoyancy force is defined as Fb=ρVg Here ρ is the density of fluid, V is the volume of the…

Q: a. Uru is a metal ore from the first moon, and it also appears to have metallic properties. The…

A: In BCC, body centered unit cell the position of lattice is on the corner of cube and one atom is…

Q: b. Adamantium is a virtually indestructible man-made steel alloy which does not occur in nature and…

A: This question is of solid state chemistry and we have been asked to find the crystal structure of…

Q: long path acb, 100 J of heat flows into the system and the system does OJ of work. (a) How much heat…

A: The energy change during a process is always conserved. The internal energy is a state function; it…

Q: D. Determining the Density of a Metal Block 246.1389 Mass of metal block Value of smallest markings…

A: Density of a substance is the defined as the mass per unit volume. Density = mass /volume    Given…

Q: 2. At a certain temperature, K₂ = 3 for the reaction NO3(g) NO(g) + O₂(g) Find the direction of the…

A: Equilibrium constant is defined as ratio of products concentrations and reactants concentrations of…

Q: 21. How many milliliters of 6.052 M HCl are required to make 500.0 mL of a solution containing 7.150…

A:

Q: Calculate the pressure exerted by 1.0 mol of hydrogen at 0°C in a vessel with volume of 5.0 dm3…

A: Soln

Q: A scientist has an aqueous solution with an unknown concentration. He uses a 1-cm cuvette and…

A:

Q: Is this correct or does the true value need the same sig figs as the estimated value?

A: Number of significant figures gives an idea on the accuracy of the measured value.

Q: 2.1 The correct indicator was added to 25.00 mL of a 0.1345 M solution of propanoic acid…

A: Propanoic acid is titrated with sodium hydroxide.

Q: Initial rate data at a certain temperature is given in the table for the following reaction. [NOBr,…

A: The reaction taking place is given as, And the reaction kinetics data given is,

Q: A chemist fills a reaction vessel with 0.958 M lead (II) (Pb²") aqueous solution, 0.141 M bromide…

A:

Q: The reaction A(aq) + B(aq) +2C(aq) - --> Has the rate law Rate = K[A][B]²[C]² By what factor does…

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Q: EXPERIMENTAL DATA The initial concentrations of SCN after dilution were calculated as part of the…

A: The data given is, And the final volume of solution = 15.00 mL.

Q: Please answer this question, show all work and steps. Use units and significant figures.Thank you!!

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A:

Q: The pressure of a gas sample was measured to be 654 mmHg. What is the pressure in kPa? Complete the…

A: Pressure of gas = 654 mmHg. 1mmHg = 0.1333222 KPa (133.222 Pa) 654 mmHg = 87.1928414 KPa Pressure of…

Q: 2. For a certain gas C, = 12 cal mole¯' deg ree¯'. What will be the change in entropy of 10 moles of…

A:

Q: Clearly show your work. Use conversion factors to convert the following units to another units. A.…

A: A. 4.5 min to secondsB. 49820 ms to secondsC. 5 hours to secondsA. 745 nmB. 11 mA

Q: An aqueous solution of ferric hydroxide has a specific gravity of 1.25 and a weight fraction of…

A: Given data, Weight fraction of solute = 0.10Specific gravity of solution= 1.25

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Q: 4. Magnesium hydroxide dissociates partially according to the following equation Mg(OH), 2 Mg²+ + 2…

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Q: Initial Amount After Half-life (years) Isotope Оuantity 1000 Years 33. 226RA 1599 10 g 94. e 5715…

A: in radioactivity is defined as unstable nuclei is decay into stable nuclei and emits electromagnetic…

Q: How many ors of hydrogen gas would be produced by the completo reacton of 2.90 o of A at STP…

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Q: Calculate the amount of HCN that gives the lethal dose in a small laboratory room measuring 12.0 ft…

A: Given: Dimensions of Laboratory room: 12.0 ft x 15.0 ft x 9.10ft

Q: The equilibrium H₂(g) + 12(g) 2HI(g) has a Kc = 49 at a certain temperature. If 1.14 moles of H₂…

A:

Q: plution of pH 3.88 is prepared by dissolving sufficient ium formate, NaHCOO(s), in 1.50 L of 0.100 M…

A: When weak acid and its salt is present in a solution, buffer solution is formed.Its pH is given…

Q: 24) Below is a plot of the reaction of A decomposing to form products. [A] i time Based on the…

A: Chemical kinetics is branch of chemistry in which we deal with speed at which rate of reaction…

Q: Answer the following questions using the balanced chemical equation: N₂(g) + 3H₂(g) → 2NH3(g) How…

A: Given reaction: According to this equation, 1 mol N2 reacts with 3 mol H2.

Q: The molar extinction coefficients for A and B at =450 nm are ɛ=2,000. and ɛ=3000. M cm'. At A=650…

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Q: Part A When electricity (the flow of electrons) is passed through a solution, it causes an…

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Q: 4. Determine AH° and ASº, at 298 K, for the following reaction. Then determine AG°. CS2(1) + 3 O2(g)…

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Q: Consider the reaction: ACC9)t 2B(g)<- ABa(g) * Ceg) AH = +56.9KJ The System is sitling at…

A: According to Le Chatelier's principle when stress is applied on reaction at equilibrium then the…

Q: 4. At a certain temperature, K, 8 for the reaction 2NO₂(g) NO(g) + NO(g) If 5.0 mol of NO₂(g) were…

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Q: Vibranium is a rare, extraterrestrial metallic ore. It has near- mystical properties that allow for…

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States of Matter

The substance that constitutes everything in the universe is known as matter. Matter comprises atoms which in turn are composed of electrons, protons, and neutrons. Different atoms combine together to give rise to molecules that act as a foundation for all kinds of substances. There are five states of matter based on their energies of attraction, namely solid, liquid, gases, plasma, and BEC (Bose-Einstein condensates). 

Chemical Reactions and Equations

When a chemical species is transformed into another chemical species it is said to have undergone a chemical reaction. It consists of breaking existing bonds and forming new bonds by changing the position of electrons. These reactions are best explained using a chemical equation.