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netineya [11]
3 years ago
5

How many moles are in 38 grams of Argon? Round to 2 decimal places. Use "e" for exponents

Chemistry
1 answer:
yuradex [85]3 years ago
3 0

Answer: 39.948

Explanation:

How many grams Argon in 1 mol? The answer is 39.948. We assume you are converting between grams Argon and mole. You can view more details on each measurement unit: molecular weight of Argon or mol The molecular formula for Argon is Ar.

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Origin of name of aluminun
Alex73 [517]
From Latin word alumen, mean alum
3 0
3 years ago
How many grams of naoh would react with 507 g fecl2 in the reaction fecl2 + 2naoh fe(oh)2(s) + 2nacl?
rosijanka [135]
<span>Answer: Correct answer is 507g FeCl2 x (1 mol FeCl2 / 126.8 g FeC2) x (1 mol Fe(OH)2 / 1 mol FeCl2) x (89.8 g Fe(OH)2/ 1 mol Fe(OH)2) = 359 g Fe(OH)2.</span>
7 0
3 years ago
Read 2 more answers
Suppose a student prepares a buffer that is intended to be pH 7.20. However, when the student tests its pH using a pH probe, the
MAXImum [283]

  1. A calibration error could lead to this result, if the pH probe was not properly calibrated before being used, the measured value of pH would be different from the actual pH value. Meaning in this case the student correctly prepared the buffer.
  2. While measuring the mass of the buffer's acid component (for example NaH₂PO₄), the student did not properly set the balance to zero before proceding to weigh the compound, causing the mass readings to be underestimated. As a result, the student weighed more acid than required, eventually leading to a decreased pH value.
6 0
3 years ago
If 16g of <img src="https://tex.z-dn.net/?f=CH_%7B4%7D" id="TexFormula1" title="CH_{4}" alt="CH_{4}" align="absmiddle" class="la
sammy [17]

43.56 grams of  are produced if 16g of  CH4 reacts with 64g of O2.

Explanation:

Balance equation for the reaction:

CH4 + 2O2⇒ CO2 +2H2O

Data given : mass of CH4 =16 grams  atomic mass = 16.04 grams/mole

                    mass of water 36 gram  atomic mass = 18 grams/moles

                   mass of CO2=?                atomic mass = 44.01 grams/mole

number of moles = \frac{mass}{atomic mass of one mole}    equation 1

number of moles in CH4

   n = \frac{16}{16.04}

       = 0.99 moles

Since combustion is done in presence of oxygen hence it is an excess reagent and methane is limiting reagent so production of CO2 depends on it.

From the equation

1 mole of CH4 gave 1 mole of CO2

O.99 moles of CH4 will give x moles of CO2

\frac{1}{1} = \frac{x}{0.99}

x = 0.99 moles of carbon dioxide

grams of CO2 = number of moles x atomic mass

                         = 0.99 x 44.01

                          = 43.56 grams of CO2 is produced.

4 0
3 years ago
What happens to gas particles when they are compressed?
Anuta_ua [19.1K]

Answer:

3)Some gas molecules move further apart and some move closer together.

Explanation:

because When more gas particles enter a container, there is less space for the particles to spread out, and they become compressed. The particles exert more force on the interior volume of the container. This force is called pressure. There are several units used to express pressure.

4 0
3 years ago
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