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balandron [24]
2 years ago
11

Which one is you fav one

Chemistry
2 answers:
serious [3.7K]2 years ago
8 0

Answer:

the 3rd one

Explanation:

Gnoma [55]2 years ago
3 0
The purple and yellow one is my fav!
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Read the following paragraph from the section "Dreaming Of A World Deep Below."
LiRa [457]

Answer:

B

Explanation:

The interior planet has fascinated a lot of people so a lot of theories have been made about what's in there.

6 0
2 years ago
-You wish to make a 0.203 M hydrochloric acid solution from a stock solution of 6.00 M hydrochloric acid. How much concentrated
lubasha [3.4K]

For all three questions, we will use the fact that

  • molarity = (moles of solute)/(liters of solution)

1) For 175 mL of solution at 0.203 M, this means that:

  • 0.203 = (moles of solute)/0.175
  • moles of solute = 0.035523 mol

Considering the hydrochloric acid solution, if we have 0.035523 mol, then:

  • 6.00 = 0.035523/(liters of solution)
  • liters of solution = 0.035523/6.00 = 0.0059205 = <u>5.92 mL (to 3 sf)</u>

<u />

2) If there is 20.3 mL = 0.0203 L, then:

  • 8.20 = (moles of solute)/0.0203
  • moles of solute = 0.16646 mol

This means that the molarity of the diluted solution is:

  • 0.16646/(0.200) = <u>0.832 M (to 3 sf)</u>

<u />

3) If we need 1.50 L of 0.700 M solution, then:

  • 0.700 = (moles of solute)/1.50
  • moles of solute = 1.05 mol

Considering the 9.36 M acid solution, from which we need 1.05 mol of perchloric acid from,

  • 9.36 = 1.05/(liters of solution)
  • liters of solution = 1.05/9.36, which is 0.11217948717949 L, or <u>112 mL (to 3 sf)</u>
8 0
1 year ago
Someone can help me with the question 3, please
pav-90 [236]
Answer ————
60.8 g ammonia
5 0
3 years ago
Define density of a substance.
ozzi

Answer:

density, mass of a unit volume of a material substance. The formula for density is d = M/V, where d is density, M is mass, and V is volume. Density is commonly expressed in units of grams per cubic centimetre. ... Density can also be expressed as kilograms per cubic metre (in metre-kilogram-second or SI units).

Explanation:

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2 years ago
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Arrange these elements into a table showing metals and non-metals: phosphorus, P, barium, Ba, vanadium, V. mercury, Hg, krypton,
kondor19780726 [428]

...,...................................

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