D. What is the mass of one molecule of water in grams? a. 18 c. 3.0 x 10-23 b. 0ו א 1.! d. ן xl0 1.7

Q: 1) Perform the following unit conversions: a. 35.7 moles to umol b. 0.065 mL to µL. c. 0.756 g/ml to…

A:

Q: Number Log log Crooo) -3 log C1o).-a 1000 0.01 Ix 104 -4 log (o-02), -1-69 .02 300 log (300 ), 2.47…

A: pH is the measure of acidity whereas pOH is the measure of basicity. For a solution, if pH < 7…

Q: 1. Water is added to the acid in the preparation of an acidic solution. 2. Calibration is the…

A: Actually, for the preparation of an acidic solution, acid should be added to the water slowly. Then…

Q: [CH,CI] (mol / I) [H,0] (mol / I) Vel. (mol.l1.s) 0.25 0.25 2.83 0.50 0.25 5.67 0.25 0.50 11.35

A: Answer :-  1)  The order of reaction w.r.t CH3Cl is 1  The order of reaction w.r.t H2O is 2  The…

Q: Predict the sign of ΔS for

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Q: Q2: F The Mass the earth is (5-95 x10) Ry- colenlak the Average dansly ?(hg/mt}

A: Mass of earth = 5.95 × 1024 kg

Q: seous methane (CH4) will react with gaseous oxygen (0,) to produce gaseous carbon dioxide (CO,) and…

A: CH4(g) + 2O2(g) -----> CO2(g) + 2H2O(g) Mass of CH4= 11.4 g Mass of O2 = 13 g Molar mass of CH4=…

Q: A bottle of sodium hydroxide (NaOH) was found to contain 1.23 lb of this chemical. Express the…

A: The conversion factor can be described as the numerical factor that is used to convert one set of…

Q: 1. What is the sum of 89.332 g and 1.1 g? a. 90.4g b. 90.432g C. 90.0g d. 90.43g

A: The significant figures of a given number are those significant digits, which express the meaning…

Q: Substance AB2 is 60% A by mass.  What is the percent A by mass for substance AB?  Justify your…

A: Law of definite proportions: It states that chemical compounds has formed always in a fixed ratio. 1…

Q: A chemist has two different gasohol mixtures available. One contains 20% alcohol and the other 12%…

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Q: 8.55 In the process of Is the of I II? III Skill-Building in similar pairs) Student II writes: A1 +…

A: Given: A element = red atom B element = green atom

Q: A sample of metal weighing 4.28 g is combined with oxygen; the metal oxide weighs 40.9 g. The mass…

A: Mass percentage is one way of representing the concentration of an elements or components in…

Q: tफ्रिण कावड8 ली मत्च ड Prव्वेपण््dं wh उ.न्0 कd oकी ताक जC के Cागटर्नथेप क मकट Fगीvप्aणश कलललह व…

A: Given-> Mole of Cl2 = 3.00 mole Molar mass of HCl = 36.46 g/mole

Q: 2 g aluminum sulfate in 200 g of water . density of aluminum sulfate ; density of h20

A: Density can be determined by using the following formula: Density = mass/volume

Q: Balance the following equations and indicate whether theyare combination, decomposition, or…

A: “Since you have posted a question with multiple sub-parts, we will solve first three sub-parts for…

Q: B. Substance 2 7. Fill the graduated cylinder to 20 mL. 8. Find the mass of the substance 177.5g 9.…

A: Density is defined as mass of substance per unit volume. The formula for calculating it is given…

Q: percent mass

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Q: A student obtained the data below after performing a similar experiment described in this…

A: Mass of hydrated salt = mass of crucible, cover and hydrate - mass of crucible and cover. So, Mass…

Q: Use the sample experimental data to calculate the mass of sample (BaCl2•xH2O) Mass of pan 15.110 g…

A: A question based on general chemistry that is to be accomplished.

Q: is this correct, especially questions 3 and 7 on the second page. THANKS :)

A: 3) According to the question the weight of empty flask and stopper is 34.232 g. The weight of flask,…

Q: What is the mass in grams of 12 oz mass of salt

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Q: 1. 3C2H5OH() + 202) 5CO2(9) + 2H2O(g) 2. 2NO2(9) 2NO(9) + O2g)

A: Enthalpy of reaction :  For a chemical reaction the standard enthalpy of reaction is the total…

Q: 1. A student measured a 6.790 g sample of a hydrated salt. After heating, the mass of anhydrous salt…

A: a. Given that weight of hydrated salt is 6.790 g and mass of anhydrous salt is found to be 4.501 g.…

Q: A 45.00 mL portion of olive oil (d=0.917 kg/L) was added to a mixture weighing 250g. By mass, the…

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Q: Two samples of potassium chloride are decomposed into their constituent elements. One sample…

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Q: 8. A 141 mg sample was placed on a watch glass that has a mass of 9.203 g. What is the mass of the…

A: Given that, mass of sample=141 mg mass of watch glass= 9.203 g then,

Q: H+ He He+? H+B 3? 122Xe+? 54 Fe e + ?

A: Balance equation

Q: A titanium ore contains rutile (TiO2) plus some oxides of iron and silica. When it is heated with…

A: Reaction: TiO2 + C + Cl2 ---> TiCl4 + Cl2 molecular mass of TiO2 = 79.866 g/mol molecular mass of…

Q: 1) Ca0.Al203.Fez03 + H20 2) Ca0.Al203 3) NazSio, 4) CH3OH + H20 + CaSO,.2H20 HF + CO ? NH+ ? H2SO. ?

A: In a balanced chemical equation number of each element should be same for both reactants and…

Q: Determine the mol H2O/mol CaSO4 if you have the following data to two decimal places (MM H2O =18.02…

A: Moles are ratio of mass to molar mass of substance.

Q: Balance each reaction and write its reaction quotient, Q꜀:

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Q: Gaseous ethane (CH CHwill react with gaseous oxygen (02) to produce gaseous carbon dioxide (CO, and…

A: The balanced chemical reaction is shown as,

Q: Gaseous methane (CH,) will react with gaseous oxygen (O,) to produce gaseous carbon dioxide (CO,)…

A: The reaction of Methane and oxygen is

Q: 03. Dark hydrochloric acid usually contains 37.0% hydrogen chloride (HCI), and its density is…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first only.

Q: { Al/Pb Zn/Mg Al/Mg Fe/Pb Al/Fe Fe/Mg Al/Sn Fe/Sn Zn/Fe Pb/Sn Zn/Sn Pb/Mg Zn/Pb Sn/Mg

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Q: A) 6.81 x 1022 molecules B) 3.40 x 1022 molecules C) 8.91 x 1022 molecules D) 1.75 x 1022 molecules…

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Q: Me (ii) 1) DIBAL-H → ? hexane, –70 °C 2) H20/H*

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Q: Liquid heptane, C,H,6 , burns in oxygen gas to yield carbon dioxide and water. What mass of carbon…

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Q: What is the mass of fresh water (ρ= 1.00 g/cm3) in a 78.0 Ltank?

A: Given : density of water = 1.00 g/cm3  Volume of tank = 78.0 L

Q: (d) 2 C(graphite) +202(g) → 2CO2(g) (b H2(g) + 1/2O2(g) → H₂O(1) (e) 2 CO2(g) + H₂O(l) → C₂H2(g) +…

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Q: 1. Write an equation showing how the mass of the substance sought can be converted to the mass of…

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Q: Question 3

A: Copper is an element having symbol Cu and aluminum is an element having symbol Al.

Q: A piece of alminum foil contains 3.6 x 1021 aluminum atoms.  1) What is the mass of the aluminum…

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Q: A sample of metal weighing 1.4 g is combined with oxygen; the metal oxide weighs 33.5 g. The mass…

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Q: 10. H2 (g) + C¿H4 (g) → C¿H6 (g) 11. 2C,H, (g) + 702 (8) → 4CO2 (g) + 6H2O (g)

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Q: Someone invents new units of measurement: grobs, hulks, and blubs. They define that 1 hulk is equal…

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Q: d) c, and (e) p? red quantities: (a) 351 g,

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Q: he computed percent recovery was more than 100%. What does this signify, and what should be done…

A: The computed percentage yield to be over 100% indicates that there is more recovery of the sample…

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.