Answer:
- According to the law <br> Mass of reactants = mass of product, here <br> `underset(10 g)(CaCO_(3))rarr underset(4.4 g)(CO_(2))+underset(x)(CaO)` <br> Hence, x = 10 g - 4.4 g = 5.6 g <br> Which is mass of CaO.d
- In the first compound <br> Hydrogen = 5.93 % <br> Oxygen = `(100-5.93)% = 94.07 %` <br> In the second compound <br> Hydrogen = 11.2 % <br> Oxygen `= (100-11.2)%=88.8%` <br> In the first compound the number of parts by mass of oxygen that combine with one part by mass of hydrogen `=(94.07)/(5.93)=15.86` parts ...
- (The ratio of Cu combining with fixed weight of oxygen in black and red oxide is 1 : 2 respectively. Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.) {Check something more in the above attachment!}
- Refer to the above attachment
Explanation:
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<span>he density of a material is defined as its mass per
unit volume. In this example, each volume of water is different and
therefore has a specific and unique mass. The mass of water is expressed
in grams (g) or kilograms (kg), and the volume is measured in liters (L), cubic centimeters (cm 3), or milliliters (mL).</span>
Answer:
The new pressure is 1.05 atm
Explanation:
Step 1: Data given
Number of moles oxygen gas = 6.2 moles
Volume of the cylinder = 4.3 L
Pressure of the gas = 3.8 atm
The volume changed to 15.5 L
Step 2: Calculate the new pressure
P1*V1 = P2*V2
⇒with P1 = the initial pressure of the gas = 3.8 atm
⇒with V1 = the initial volume = 4.3 L
⇒with V2 = the increased volume = 15.5 L
⇒with P2 = the new pressure = TO BE DETERMINED
3.8 atm * 4.3 L = 15.5 L * P2
P2 = (3.8 atm *4.3 L) / 15.5 L
P2 = 1.05 atm
The new pressure is 1.05 atm
The world's oceans are crucial to heating the planet.
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