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2 years ago

¿que se necesita para escribir un informe de experimento? Plis

Chemistry

2 answers:

s2008m [1.1K]2 years ago

5 0

Answer:

Por favor, dale a la otra persona lo más inteligente. Gracias

Ludmilka [50]2 years ago

4 0

Answer:

Explanation:

Introducción. Dentro de la introducción, el investigador limita el estudio. Muestra los datos generales importantes y...

Hipótesis. La hipótesis consiste en una apreciación que el investigador hace en torno al problema. Se define como una...

Objetivos. Los objetivos de un estudio son los movimientos que se deben hacer para solucionar el

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Please help and thank you

mestny [16]

Answer:

c but not sure

Explanation:

6 0

2 years ago

Read 2 more answers

What is the % yield when 12g of Mg react with HCl to produce 0.2g of H2?

goblinko [34]

Answer:

The yield is 20 %.

Explanation:

Mg + 2 HCl → MgCl2 + H2

(12 g Mg) / (24.30506 g Mg/mol) x (1 mol H2 / 1 mol Mg) x (2.015894 g H2/mol) = 0.9953 g H2.

(0.2 g) / (0.9953 g) = 0.20 = 20% yield

5 0

2 years ago

What is the partial pressure of helium gas in a mixture that contains 8.00 grams of helium and 8.60 mol argon gas with a total p

Agata [3.3K]

Answer:

$P_{He}=9.06torr$

Explanation:

Hello there!

In this case, we can identify the solution to this problem via the Dalton's rule because the partial pressure of helium is given by:

$P_{He}=x_{He}P_T$

Whereas the mole fraction of helium is calculated by firstly obtaining the moles and then the mole fraction:

$n_{He}=8.00g\frac{1mol}{4.00g}=2.00mol\\\\ x_{He}=\frac{n_{He}}{n_{He}+n_{Ar}} \\\\ x_{He}=\frac{2.00mol}{2.00mol+8.60mol}\\\\x_{He}=0.189$

Then, we calculate the partial pressure as shown below:

$P_{He}=0.189 *48.0torr\\\\P_{He}=9.06torr$

Best regards!

4 0

2 years ago

10. Which of state of matter has no definite shape but does have a definite volume?

il63 [147K]

Answer:

Gas, has no shape but does take up volume

4 0

3 years ago

So guess what I did!!

Lapatulllka [165]

Answer:

what

Explanation:

what did u do

7 0

2 years ago

¿que se necesita para escribir un informe de experimento? Plis ​

¿que se necesita para escribir un informe de experimento? Plis