3 years ago

Use the Debye-Huckel Equation to calculate the activity coefficient of Ce4+ at μ = 0.070 M.

Chemistry

1 answer:

Dmitriy789 [7]3 years ago

8 0

english please so i can help

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How many grams of NiNi are formed from 55.3 g55.3 g of Ni2O3Ni2O3?

White raven [17]

Answer:

110.92 g

Explanation:

Amount of Ni2O3 consumed= 55.3/59 =0.94 moles

From the reaction equation;

2 moles of Ni2O3 yields 4 moles of Ni

0.94 moles yields 0.94 moles * 4/2

= 1.88 moles of Ni2O3

Mass of 1.88 moles of Ni2O3 = 1.88 moles of Ni2O3 * 59 gmol-1 = 110.92 g

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3 years ago

What is the mass of 22.4L of H2 at stp

bazaltina [42]

Answer:

2.02 g H₂

General Formulas and Concepts:

Chemistry - Atomic Structure

Reading a Periodic Table
Using Dimensional Analysis
STP (Standard Conditions for Temperature and Pressure) = 22.4 L per mole at 1 atm, 273 K

Explanation:

Step 1: Define

22.4 L H₂ at STP

Step 2: Identify Conversions

STP - 22.4 L / mol

Molar Mass of H - 1.01 g/mol

Molar Mass of H₂ - 2(1.01) = 2.02 g/mol

Step 3: Convert

$22.4 \ L \ H_2(\frac{1 \ mol \ H_2}{22.4 \ L \ H_2} )(\frac{2.02 \ g \ H_2}{1 \ mol \ H_2} )$ = 2.02 g H₂

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3 years ago

Which of the following is NOT a part of cell theory?

astraxan [27]

Answer:

What is the following?

Explanation:

I think I can answer this, I recognize the question

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Elements in the same period of the periodic table exhibit similar physical and chemical properties.

Vladimir [108]

Answer:

same valency electrons

Explanation:

example g 1 elements

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