2 years ago

What is the molar mass of lead nitrate (Pb(NO3)2) from the equation below?

Chemistry

1 answer:

AveGali [126]2 years ago

3 0

Answer:

331.2 g/molExplanation:

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Predict the boiling point of water at a pressure of 1.5 atm.

Lina20 [59]

Answer:

100.8 °C

Explanation:

The Clausius-clapeyron equation is:

$ln\frac{P_{1} }{P_{2}} =$ -Δ $\frac{H_{vap}}{r} (\frac{1}{T_{2}}-\frac{1}{T_{1}} )$

Where 'ΔHvap' is the enthalpy of vaporization; 'R' is the molar gas constant (8.314 j/mol); 'T1' is the temperature at the pressure 'P1' and 'T2' is the temperature at the pressure 'P2'

Isolating for T2 gives:

$T_{2}=(\frac{1}{T_{1}} -\frac{Rln\frac{P_{2}}{P_{1}} }{Delta H_{vap}}$

(sorry for 'deltaHvap' I can not input symbols into equations)

thus T2=100.8 °C

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2 years ago

I’m just doing this because it told me to in order to get the answer for my homework?

andrew-mc [135]

Ok good luck on your homework then

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An object floats im sea water more readily because of sea water’s

Taya2010 [7]

Because of the sea waters density. If an object is less dense than the water it would not float

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Can someone help me balance this equation please? Br2 + S2O32– + H2O → Br1– + SO42– + H+

tamaranim1 [39]

Explanation:

Br2 + S2O32- + 5H2O –> 2Br- + 2SO4 + 10H+ + 6e

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2 years ago

Prediction for Scandium (II) and Cl

Nimfa-mama [501]

Answer:

ScCl₂

General Formulas and Concepts:

Chemistry

Reading a Periodic Table
Reaction Prediction
Determining Chemical Compounds

Explanation:

Step 1: Define

Scandium (II)

Step 2: Determine Charges

Sc²⁺

Cl⁻

Step 3: Predict Compound

We need to balance out the charges so the overall charge is 0.

ScCl₂

Step 4: Reaction

RxN: Sc²⁺ + Cl₂ → ScCl₂

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3 years ago