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lina2011 [118]
3 years ago
5

What is the mass of 2.1 moles of Ca(OH)2?

Chemistry
2 answers:
noname [10]3 years ago
7 0
74.093 grams!!!!!!!!!!!!!!!!!!!
Vilka [71]3 years ago
5 0
74.093 grams is the answer for your question
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In eukaryotic cells the citric acid cycle takes place in the matrix of the mitochondria.
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Water from a lake changes to a gas state in the process of what?
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Of heating. Or when the lake is exposed to boil because of the temperature.
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A student found that the titration had taken 10.00 ml of 0.1002 m naoh to titration 0.132 g of aspirin, a monoprotic acid. calcu
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The balanced equation for the reaction between NaOH and aspirin is as follows;
NaOH + C₉H₈O₄ --> C₉H₇O₄Na + H₂O
stoichiometry of NaOH to C₉H₈O₄ is 1:1
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3 years ago
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A sample of N2 gas in a flask is heated from 27 Celcius to 150 Celcius. If the original gas is @ pressure of 1520 torr, what is
Romashka [77]

Answer:

\large \boxed{\text{B.) 2.8 atm}}

Explanation:

The volume and amount are constant, so we can use Gay-Lussac’s Law:

At constant volume, the pressure exerted by a gas is directly proportional to its temperature.

\dfrac{p_{1}}{T_{1}} = \dfrac{p_{2}}{T_{2}}

Data:

p₁ = 1520 Torr; T₁ =   27 °C

p₂ = ?;               T₂ = 150 °C

Calculations:

(a) Convert the temperatures to kelvins

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T₂ = (150 + 273.15) K = 423.15 K

(b) Calculate the new pressure

\begin{array}{rcl}\dfrac{1520}{300.15} & = & \dfrac{p_{2}}{423.15}\\\\5.064 & = & \dfrac{p_{2}}{423.15}\\\\5.064\times423.15&=&p_{2}\\p_{2} & = & \text{2143 Torr}\end{array}\\

(c) Convert the pressure to atmospheres

p = \text{2143 Torr} \times \dfrac{\text{1 atm}}{\text{760 Torr}} = \textbf{2.8 atm}\\\\\text{The new pressure reading will be $\large \boxed{\textbf{2.8 atm}}$}

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2 years ago
A child with cystic fibrosis has a mutated protein in his cells which does not behave normally. The mutated protein stops chlori
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Answer:

Explanation:

lung air ways the mucus will clog it up causing asthma hope this helped :P

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