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Mrrafil [7]
4 years ago
12

How many molecules are present in the following quantity 0.250 mole of H2O

Chemistry
1 answer:
klio [65]4 years ago
4 0
If  1mole ------------- is ---------------- 6.02*10²³
than 0.25mole ----- is ----------------  x

x = [0.25mole*6.02*10²³]/1mole = <u>1,505*10²³</u>
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Two students performed a lab to see how the density and salinity of water are related. Both beakers began with the same salinity
saveliy_v [14]

Answer: the water avaperatid

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Explanation:

8 0
3 years ago
determine the molecular formula of the compound with an empirical formula of CH and a molar mass of 78.110g/mol
Vlada [557]

Answer:

C_{6} H_{6}

Explanation:

First, find the mass of empirical formula, CH. 12.01 g/mol is for carbon, and 1.008 g/mol is for hydrogen. 12.01+1.008=13.018 G/mol CH. Divide 78.110 G/mol by 13.018 g/mol. You get approximately 6. Multiply that by the subscript of each element. 6(CH)=

C_{6} H_{6}

8 0
4 years ago
How many grams are in 36.2 moles of Iron (I) fluoride?
Allushta [10]

Answer:

4084.808 grams (SigFigs: 4085 grams)

Explanation:

The molar mass of Iron fluoride is 112.84 g/mol.

To calculate the mass, multiply the molar mass by the number of moles.

36.2 mol * 112.84 g/mol = 4084.808 g

Convert to Sigfigs (if necessary):

4085 g

5 0
3 years ago
Read 2 more answers
two solutions are made by mixing sugar and enough water to make a 1 liter solution. one contains 5% sugar and the other contains
Free_Kalibri [48]

Based on their percent concentration, the 5% sugar solution contains more water.

<h3>What is the concertation of a solution?</h3>

The concentration of a solution is the amount of solute dissolved or present in a given volume of solution.

Concentration of solutions can be expressed as either:

  • molar concentration
  • mass concentration
  • percentage concentration

The concentration of the sugar solutions are given as percent concentration.

The 5% sugar solution contains 5% sugar and 95% water

The 10% sugar solution contains 10% sugar and 90% water.

Therefore, the 5% sugar solution contains more water.

Learn more about percent concentration at: brainly.com/question/1459676
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3 0
2 years ago
(100 POINTS) Write the chemical formula of the ionic compound magnesium chlorate. The magnesium (Mg) ion has a +2 charge. Chlora
antoniya [11.8K]

Answer:

A

Explanation:

since Mg has a charge of +2 and ClO3 has a charge of 1-, you need 2 ClO3 to cancel out the +2 since 2 ClO3 ions would have a 2- charge

6 0
3 years ago
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