3 years ago

What is the mass (in grams) of 9.83 × 1024 molecules of methanol (CH3OH)?

1 answer:

Ber [7]3 years ago

5 0

523 grams First, calculate the molar mass of CH3OH Atomic weight of carbon = 12.0107 Atomic weight of hydrogen = 1.00794 Atomic weight of oxygen = 15.999 Molar mass of CH3OH = 12.0107 + 4 * 1.00794 + 15.999 = 32.04146 Now determine how many moles you have by dividing the number of atoms by avogadro's number moles = 9.83 x 10^24 / 6.0221409 x 10^23 = 16.3231 Now multiply the number of moles by the molar mass 16.3231 * 32.04146 = 523.0159557 Since we only have 3 significant figures, round the result to 3 significant figures. 523.0159557 grams = 523 grams

You might be interested in

Which structures main function is to produce food (sugar) in a plant

bija089 [108]

Chloroplasts is the answer

3 0

3 years ago

A type of physical that occurs between two electrically charged particles?

White raven [17]

Electromagnetism

Theoretically it is a branch of physics that contains two sources. Either electrically charged particles or the behavior between Neutrons and protons etc.

7 0

3 years ago

Five elements named after color

Dmitry [639]

Caesium -bluish(Latin) Chlorine -yellow/green (Greek) Iodine -violet (Greek) Rhodium -rose (Greek) Sulphur - yellow (Arabic)

4 0

3 years ago

7. A cyclist starting from rest accelerates at a rate of 6 m/s until she reaches 30 m/s. How long

Hunter-Best [27]

Answer:

Explanation:

The given values are:

a= 6m/s²

u= 0 m/s

v = 30 m/s

t= ?

The formula is :

$a=\frac{v-u}{t}$

thus,

$t=\frac{v-u}{a}\\t=\frac{30-0}{6}\\t= 5 seconds$

4 0

3 years ago

W = m·g is a form of Newton's ______ Law. A)first B)second C) third

tatuchka [14]

Answer:

B. Second

Explanation:

It is the Law of Motion

3 0

3 years ago