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Evgesh-ka [11]
3 years ago
15

Calculate the volume of .987 mol of gas at stp will occupy

Chemistry
2 answers:
Oxana [17]3 years ago
8 0

Answer:

22.108 litres

Explanation:

Number of moles = volume / molar volume

Molar volume at stp = 22.4 litres

Volume = no of moles × molar volume

= 0.987 × 22.4

= 22.1088 litres

aalyn [17]3 years ago
5 0
Number of moles = volume / (molar volume)
Molar volume at stp = 22.4 dm^3
Volume = no of moles × molar volume
= 0.987 × 22.4
= 22.1088 dm^3
= 22108.8 cm^3

Hope it helped!
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What is the mass of an element with 15 protons, 13 electrons, and 11 neutrons? *
RSB [31]

Answer:

The mass of the element is 26.20 amu

Explanation:

In this question, we are asked to calculate the mass of an element with 15 protons, 13 electrons and 11 neutrons

To calculate the atomic mass of the element, we take into consideration the masses of the individual sub atomic particles

Electrons have 0 atomic mass unit(their masses are negligible) we have no business here, Protons have a mass of

1.00727647 amu, while the mass of neutron is 1.0086654 amu

The mass of 15 protons is thus 15 * 1.00727647 = 15.10914705 amu

The mass of 11 neutrons is 11 * 1.0086654 =

11.0953194 amu

Adding this together, we have ; 11.0953194 + 15.10914705 = approximately 26.20 amu

6 0
3 years ago
Fe2O3(s)+3C(s)→2Fe(s)+3CO(g) how many grams of CO are produced when 32.0 grams of C react
krok68 [10]

Answer:

74.6 g

Explanation:

The computation of the number of grams produced at the time when 32.0 grams of C react is shown below:

As we know that

But before that we need to find out the moles of c i.e carbon which is

= \frac{Grams }{C\ molar\ mass}

= \frac{32\ grams}{12.0107 g/mol}

= 2.66 mol

As we know that

1 mol of C produces 1 mol of CO

So, for 2.66 mol, the mass of CO is

= 2.66 \times28.0101 g/mol

= 74.6 g

Basically we applied the above equation so that we can reach to the answer

8 0
3 years ago
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the answer is probably cuz I looked it up online listed properties
7 0
4 years ago
What type of reaction is pb(no3)2(aq) + 2kcl(aq) ® pbcl2(s) + 2kno3(aq)?
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The given reaction is,

Pb(NO_{3})_{2}(aq) +2 KCl(aq) --->PbCl_{2}(s) + 2 KNO_{3}(aq)

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3 years ago
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