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Nonamiya [84]
3 years ago
10

When a supply of hydrogen gas is held in a 4 liter container at 47°C it exerts a pressure

Chemistry
1 answer:
Archy [21]3 years ago
4 0

Answer:

helooooooo im bored

the answer id 1423c

Explanation:

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How many grams (g) are in 0.250 moles of copper?
MissTica

Answer:

15.89grams

Explanation:

The mass of a substance can be calculated from it's mole value by using the formula:

mole = mass/molar mass

According to this question, there are 0.250 moles of copper. Hence, the mass of copper can be calculated as follows:

Molar mass of Cu = 63.55g/mol

0.250 = mass/63.55

mass = 0.250 × 63.55

mass = 15.8875

Mass of Cu in 0.250mol is 15.89grams.

5 0
2 years ago
Which organisms in the food web shown compete for the same food source in this environment?
11111nata11111 [884]

Answer:

there is no photo

Explanation:

3 0
3 years ago
4.80 qt is the same as how many mL?
Marina CMI [18]

Answer:

onverted

Conversion factor: 946.352946

1) mL = Quart * 946.352946

2) mL = 4.8 * 946.352946

3) mL = 4542.4941

3 0
3 years ago
How many moles of compound are there in the following?
slavikrds [6]

a) (NH4)2SO4 --- 1 mole of it contains 2 moles of N, 8 moles of H, 1 mole of S, and 4 moles of O.

MM = (2 moles N x 14.0 g/mole) + (8 moles H x 1.01 g/mole) + (1 mole S x 32.1 g/mole) + (4 moles O x 16.0 g/mole) = 132 g/mole.

6.60 g (NH4)2SO4 x (1 mole (NH4)2SO4 / 132 g (NH4)2SO4) = 0.0500 moles (NH4)2SO4

b) The molar mass for Ca(OH)2 = 74.0 g/mole, calculated like (NH4)2SO4 above.

4.5 kg Ca(OH)2 x (1000 g / 1 kg) x (1 mole Ca(OH)2 / 74.0 g Ca(OH)2) = 60.8 moles Ca(OH)2

8 0
3 years ago
Which of the following is true of fault-block mountains and volcanic mountains but not true of folded mountains?
xz_007 [3.2K]
Answer: i think its A

step by step explanation:
8 0
3 years ago
Read 2 more answers
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