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brilliants [131]
4 years ago
8

If an M&M weighs 0.88 grams, how much would a mole of M&Ms weigh?

Chemistry
1 answer:
Snezhnost [94]4 years ago
7 0

Answer:

5.30x10²³g

Explanation:

A mole can be understood as an amount of something.

One mole of eggs are 6.022x10²³ eggs

One mole of atoms are 6.022x10²³ atoms

One mole of molecules are 6.022x10²³ molecules

And 1 mole of M&M are 6.022x10²³ M&M. As 1 M&M weighs 0.88g, 1 mole will weigh:

0.88g*6.022x10²³ =

<h3>5.30x10²³g</h3>
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using information in titles of appendices b and c, calculate the minimum grams of propane, C3H8 (g), that must be combusted to p
Lubov Fominskaja [6]

<u>Given:</u>

Mass of ice = mass of water = 5.50 kg = 5500 g

Temperature of ice = -20 C

Temperature of water = 75 C

<u>To determine:</u>

Mass of propane required

<u>Explanation:</u>

Heat required to change from ice to water under the specified conditions is:-

q = q(-20 C to 0 C) + q(fusion) + q (0 C to 75 C)

  = m*c(ice)*ΔT(ice) + m*ΔHfusion + m*c(water)*ΔT(water)

  = 5500[2.10(0-(-20)) + 334 + 4.18(75-0)] = 3792 kJ

The enthalpy change for the combustion of propane is -2220 kJ/mol

Therefore, the number of moles of propane corresponding to the required energy of 3792 kJ = 1 mole * 3792 kJ/2220 kJ = 1.708 moles of propane

Molar mass of propane = 44 g/mol

Mass of propane required = 1.708 moles * 44 g/mol = 75.15 g

Ans: 75.15 grams of propane must be combusted.



4 0
4 years ago
a graduated cylinder has 35.0 mL of water in it before and object is dropped inside. The new volume is 38.5 mL. What is the volu
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Displaced volume:

final volume - <span>initial volume

1 mL = 1 cm</span>³<span>

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Nitrogen gas can be prepared by passing gaseous ammonia over solid copper (II) oxide at high temperatures. If 18.1 g of Nh3 is r
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Explanation:546

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Answer:

0%

Explanation:

  • The probability that both of the parents are homozygous recessive is zero.
  • In our case, The gene for tallness is dominant over the gene for dwarfism
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  • Heterozygous genotype (Tt) will exhibit a tall phenotype.
  • When two parents are crossed and all the offsprings are tall then the possible genotype of the parents is either;
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       TT x TT

    2. One parent is homozygous dominant and the other is homozygous recessive.

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