If a particle is traveling at 98% of the speed of light in a vacuum (2.998 x 10³ m/s), what is its velocity in miles per hour? 1.00 miles = 1.61 km. A None of these (B 6.57 x 108 6.70 x 108 (D 6.84 x 108 E) 6.90 x 108

Q: An acid, HEl, is formed from a hypothetical element, El, and a subsequent aqueous solution is…

A: Hypothetical element El Hydroacid, HEl Reaction; H2O + HEl  = H3O+ + El-   Molar mass of HEl =…

Q: 52.1429 Mass of evaporating dish 9.97mL Volume of KCI solution (use about 6 mL but record actual…

A: It is given : mass of evaporating dish = 52.142 gVolume of KCl solution = 9.97 mLMass of evaporating…

Q: student obtained 2.111 g of a mixture containing four components. After performing separation by…

A:

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A: Given: 2 miles of travelling on foot requires=1 quart of water. We are given that, 1 mile = 1.609…

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A: In this question we have to tell the major organic product of the reaction.

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A: Given,mass of sodium sulfate ( Na2SO4 ) = 8.00 gmass of calcium chloride ( CaCl2 ) = 8.00 g

Q: Q1. Calçulate moles of NaC,H;O; (s), then use greaction to calculate AH,eation for anhydrous sodium…

A: Formual to calculate ∆Hreaction  is given as : ∆Hreaction  = - qreaction / n  where, n = moles ,…

Q: Weight of Anhydride and Evaporating Dish A Weight of Water Lost Weight of Anhydride Experimental…

A: To calculate these values , we would use the given formulae . First we would calculate the mass of…

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A:

Q: What is the mass in grams of KBr in 0.400 of a 0.350 L M solution?

A: SOLUTION: Step 1: Volume of KBr = 0.400 L = 400 mL Molarity of the solution: 0.350 M Molar Mass of…

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Q: Perform the conversions between energy units. 8.70 x 10² kJ = 3255 kcal = 5.27 x 106 J = kJ kcal

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A: In this question, we have to answer related to the preceding question.

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A: Mass of boat = 0.1248 gMass of boat and solid = 0.2643 gMass of empty boat = 0.1261 g

Q: 1-4

A: 1. The balanced equation is : 2 C2H2  +  5 O2  →  4 CO2  +  2 H2OH    4…

Q: A student obtained 2.111 g of a mixture containing four components. After performing separation by…

A: Mass of the mixture = 2.111 g After performing separation by chemical and physical methods masses of…

Q: 150 to 140 130 120 110 100 NaNO 90 80 70 60 50 KCI 40 Nac 30 20 KCIO Ceso, O 10 20 30 40 50 60 70 80…

A: Solubility The amount of solute present in a 100 g of solvent is known as solubility. The solubility…

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A: Let us discuss dilution of a solution and relate the formula.

Q: Convert 3.97×1010 J to units of kcal.

A: By using relation between J and Kcal we can solve this problem. 3.97×1010J = 9.5 × 106 Kcal

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A: Given,

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Q: Assume that the mass of impure acetanilide is 2.229 g. And the mass of recrystallized acetanilide is…

A: Mass  of recrystallized acetanilide is = 1.225 g Mass of of impure acetanilide is  = 2.229 g…

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Q: How many grams of sugar would you use to prepare 8.81 × 10ʻmL of a 1.00 mass/volume % solutio Enter…

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A: The solution is given below -

Q: Convert the concentration of 0.700M Na,SO, to g/mL

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A: Step : 1             The required answer for the above question is follows as :

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Q: Balanced Chem Eq

A: The raw chemical equation can be written as follows: I2  +  KOH  →  KIO3  +  KI

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Q: 50.00 ml of sulfuric acid was put in a 250 mL flask.  100 mL of 2.50 mol/L potassium hydroxide was…

A: Given that,  Volume of H2SO4 in 250.0 mL flask V1 = 50.0 mL Molarity of H2SO4  solution M1 = ?…

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A: The data given is,

Q: X, Mass of sample (g) = 0.7 Y, Mass of benzoic acid (g) = 0.3 Z, Mass of pellet (g) = 0.9…

A: Mass of sample (X) = 0.7gMass of benzoic acid (Y) = 0.3 gMass of pellet (Z) = 0.9g