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Bess [88]
3 years ago
11

How many moles of hydrogen are there in one mole of h2o?

Chemistry
1 answer:
Vinil7 [7]3 years ago
3 0
A mole of water molecules contains 2 moles of hydrogen atoms and 1 mole of oxygen atoms.
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What 2 energy resources do not rely on photosynthesis
puteri [66]
The sun i believe is one and wind
6 0
3 years ago
What is the mass (g) of 500.ml water if the density is 0.9901 g/ml?
kow [346]

Explanation:

Mass = Density × Volume

where volume = 500ml and....

Density = 0.9901 g/ml

Mass = 0.9901 × 500

Mass = 495.05 g

3 0
4 years ago
What is the volume of an oxygen tank if it contains 12 moles of oxygen at 273 K under 75 kPa?
Zina [86]
Given:
n = 12 moles of oxygen
T = 273 K, temperature
p = 75 kPa, pressure

Use the ideal gas law, given by
pV=nRT \\ or \\  V= \frac{nRT}{p}
where
V = volume
R = 8.3145 J/(mol-K), the gas constant

Therefore,
V= \frac{(12\,mol)(8.3145\, \frac{J}{mol-K} )(273\,K)}{75 \times 10^{3} \, Pa}= 0.3632\,m^{3}

Answer: 0.363 m³
    
5 0
4 years ago
Yoooo help me w this one
Scilla [17]

Answer:

0.84kg of gatorade powder

Explanation:

From the question given, we were told that 0.6kg of gatorade powder required 5 gallons of water.

To obtain the mass of gatorade needed for 7 gallons of water, we simply do the following:

0.6kg of gatorade powder required 5 gallons of water.

Therefore, xkg of gatorade powder will require 7 gallons of water i.e

xkg of gatorade powder = (0.6 x 7)/5

xkg of gatorade powder = 0.84kg

Therefore, 0.84kg of gatorade powder will be required.

6 0
3 years ago
When placed in a 200-mL square box, a substance has a spherical shape and has a volume of 75 mL. When placed in a 200-mL circula
Anastasy [175]

Answer:

a. Solid

Explanation:

<em>Solid substances do not change size or shape according to their containers</em>. In other words, solid substances keep their size and shape.

<em>Liquid and gas substances take the shape of their container</em>, so any of them would be square-shaped when put in a square box, and they would be spherical shaped when put in a spherical container.

3 0
3 years ago
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