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lys-0071 [83]
3 years ago
5

I JUST NEED A REAL ANSWER PLEASE.

Chemistry
1 answer:
ElenaW [278]3 years ago
8 0

Explanation:

hope the picture above help u understand:)

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A tank contains helium gas at 1.50 atm. What is the pressure of the gas in mmHg?
creativ13 [48]
1.50 atm(760 mmHg/1 atm)=1140 mmHg
7 0
3 years ago
When rubidium metal is exposed to air, two atoms of rubidium, Rb, combine with one atom
Eddi Din [679]

2.1653 g

Explanation:

The molar mass of Rubidium is;

85.468 g/mol

Therefore the moles of Rubidium that reacted with oxygen is;

1.98 / 85.468

= 0.0232 moles

If every two moles of Rubidium reacts with one mole of oxygen then the amount of oxygen consumed in the chemical reaction is;

0.5 * 0.0232

= 0.0116 moles

The molar mass of an oxygen atom is 16 g/mole. Then the amount of O in grams consumed is;

0.0116 * 16

=0.1853 g

The final weight of the Rubidium II Oxide is;

1.98 + 0.1853

= 2.1653 g

8 0
3 years ago
Can someone please help me
Margarita [4]

I think it is the first choice

Hope that helped!

5 0
3 years ago
Read 2 more answers
What is it called when energy is created without oxygen?
77julia77 [94]

When energy is created without oxygen, the process is called anaerobic fermentation.

5 0
4 years ago
What is the volume of 0.410 moles of co2 at STP​
inna [77]

Answer: 9.18 Litres

Standard Temperature and Pressure (STP). Think of this as the perfect environment where the Temp. is 0°C or 273 Kelvin and Pressure is always 1 atm. This is only true in STP.

This question uses the Ideal Gas Equation:

PV=nRT

P= 1 atm

V = ??

T = 273 K (always convert to Kelvin unless told otherwise)

n = 0.410 mol

R = 0.0821 L.atm/mol.K

What R constant to use depends on the units of the other values. (look at the attachments) The units cancel out and only Litres is left. You simply multiply the values.

6 0
3 years ago
Read 2 more answers
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