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Amanda [17]
3 years ago
5

What is the molecular formula for a compound with an empirical formula of CH2O if its experimentally determined molecular weight

is 180 amu?
Chemistry
1 answer:
NNADVOKAT [17]3 years ago
3 0

Answer:

C6H12O6.

Explanation:

Adding up the relative atomic masses of the elements

C + 2H + O

= 12 + 2*1 + 16.

= 30.

180 / 30 = 6  so the molecular formula is:

C6H12O6.

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How many molecules of water are in 3.8 moles of water?
Salsk061 [2.6K]

Answer:

2.29*10^24 molecules of water

Explanation:

1 molof water =6.022*10^23 molecules of water

therefore

molecules of water = 3.8*6.022*10^23

5 0
2 years ago
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What is the approximate ratio of [NO2-] to [HNO2] in order to buffer a solution at pH=4.0?
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6 0
3 years ago
The Gateway Arch in St. Louis, MO is approximately 630 ft tall. How many U.S. dimes would be in a stack of the same
miskamm [114]

Answer:

142240

Explanation:

We are told in the question:

Height of Gateway Arch in St. Louis, MO = 630ft

We are asked, how many U.S. dimes would be in a stack of the same

height when 1 dime is 1.35 mm thick.

Step 1

Convert height in ft to mm

1 ft = 304.8 mm

630ft =

Cross Multiply

630ft × 304.8mm/1ft

= 192024 mm.

Step 2

To find how many US dimes would be in a stack of the same height

= Total thickness/ Thickness of 1 US dime

= 192024 mm/1.35mm

= 142240

Therefore, the number of dimes that would be in a stack of the same

height is 142240

6 0
3 years ago
At sea level, a kilogram weighs approximately:
Marysya12 [62]
The answer would be b, or 2
7 0
3 years ago
Read 2 more answers
Please help
Colt1911 [192]
A i belive is the correct answer

3 0
3 years ago
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