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olga55 [171]
3 years ago
12

How many significant figures are in the following measurement? 433.8 liters

Chemistry
2 answers:
timama [110]3 years ago
6 0
There are four significant figures in this measurement
motikmotik3 years ago
3 0
4 significant figures
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How many moles of nitrous oxide (N2O) are produced when 1.40 moles of ammonium nitrate (NH4NO3) decompes?
blagie [28]

Answer:

The answer to your question is 1.40 moles of N₂O

Explanation:

Balanced equation

                           NH₄NO₃   ⇒   N₂O  +  2 H₂O

                                 2   --------   N  ---------- 2

                                 4   -------    H  ---------- 4

                                 3   -------    O  ---------- 3

Process

1.- From the balanced equation, we know that 1 mol of NH₄NO₃ produces 1 mol of N₂O so, we use proportions to find the number of moles produced when 1.40 moles of NH₄NO₃ react.

                           1 mol of NH₄NO₃  ------------- 1 mol of N₂O

                           1.40 moles            --------------   x

                           x = (1.40 x 1) / 1

                            x = 1.40 moles of N₂O are produced

7 0
4 years ago
In November 1987, a massive iceberg broke loose from the antartic ice mass and floated free in the ocean. The chunk of ice was e
il63 [147K]
<h2>Answer:</h2>

1.58  × 10∧16 pools.

<h3>Explanation:</h3>

Given:

Length of ice berg= 98 miles = 1557716 meters

Width of iceberg = 25 miles = 40233.6 meters

Thickness of iceberg = 750 ft = 230 meters

Volume of water in a swimming pool = 24,000 gallons = 90850 liters

The volume of the ice berg:

Volume = Length . width . thickness

Volume = 1557716 . 40233.6 . 230 = 1,441, 468, 016, 5248 m3 =  1,441, 468, 016, 5248 × 10 ∧3 L.

1 pool contains liters of water:  90850 liters

1,441, 468, 016, 5248 × 10 ∧3 liters contains = 1/90850 . 1,441, 468, 016, 524.8 × 10 ∧3 .

= 1.100 .  1,441, 468, 016, 5248 × 10 ∧3 L.

= 1.58  × 10∧16 pools.

Hence 1.6 × 10∧16 pools will be filled with that chunk of ice.


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During _______ materials move into the cell while during ______ materials move out of the cell.
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