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PSYCHO15rus [73]
3 years ago
10

I GIVE 40 POINTS PLZ ANSWER

Chemistry
1 answer:
ratelena [41]3 years ago
5 0

Answer:

1 M C6H1206s

1 M NaNO3

1 M Ca(NO3)2

1 M Li3PO4

Explanation:

Hope it helps!

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3. From the following formula, calculate the quantities required to make 5 lb o hydrophilic ointment. Methylparaben 0.25 g Propy
adell [148]

The given question is incomplete. The complete question is as follows.

From the following formula, calculate the quantities required for each of the following ingredients to make 5 lb. (avoir) of hydrophilic ointment. All values to be in g, do not include units in your submitted answer; use no more than 3 decimal places. Convert using 1 lb = 454 g. Note: all values done by mass, including the water, so this is not a q.s situation (volume is irrelevant).

Methylparaben 0.25 g

Propylparaben 0.15 g

Sodium Lauryl Sulfate 10 g

Propylene Glycol 120 g

Stearyl Alcohol 240 g

White Petrolatum 250 g

Purified Water, to make 1000 g

Explanation:

For the given quantities, the sum is 620.4 g. Now, amount of purified water (to make 1000 g of ointment)  is as follows.

             1000 g - 620.4 g

           = 379.6 g

Now, to make 5 lb we will calculate the quantities as follows.

Formula weight = 1000 g

Therefore, desired quantity is as follows.

             5 lb = 5 x 454 g

                     = 2270 g

Hence, this means the factor is  calculated as follows.

       \frac{2270 g}{1000 g}

            = 2.27

Now, we will calculate the quantity of each ingredient using factor 2.27 as follows.

  • Methylparaben = 0.25 g x 2.27 = 0.5675 g
  • Propylparaben = 0.15 g x 2.27 = 0.3405 g
  • Sodium Lauryl Sulfate = 10 g x 2.27 = 22.7 g
  • Propylene Glycol = 120 g x 2.27 = 272.4 g
  • Stearyl Alcohol = 240 g x 2.27 = 544.8 g
  • White Petrolatum = 250 g x 2.27 = 567.5 g
  • Purified Water = 379.6 g x 2.27 = 861.692 g
7 0
3 years ago
If I have 2mol NaOH in 3L solution, what is the molarity of my solution
Artist 52 [7]
Molarity is defined as the number of moles dissolved in 1 L of solution .2 mol of NaOH has been dissolved in a volume of 3 L.
we need to then find the number of NaOH moles dissolved in 1 L.
Molarity = number of moles / volume in L
Molarity = 2 mol / 3 L = 0.67 mol/L
Therefore molarity of NaOH - 0.67 M
4 0
3 years ago
Why is liquid mercury a good electrical conductor in terms of atomic structure?
Elis [28]

Mercury is a heavy, silvery-white liquid metal. Compared to other metals, it is a poor conductor of heat, but a fair conductor of electricity. ... Because this configuration strongly resists removal of an electron, mercury behaves similarly to noble gases, which form weak bonds and hence melt at low temperatures.

5 0
3 years ago
Read 2 more answers
Given that Avogadro's number is 6.02 X 1023. Calculate the number of molecules present in 100.0moles of
GREYUIT [131]

Answer: 6.02 x 10^25

Explanation:

In order to find the number of molecules you simply multiply the number of moles by 6.022 x 10^23.

1 mole is always equal to 6.022 x 10^23 no matter what element.

100.0 x 6.022 x 10^23 = 6.02 x 10^25

The answer only has three significant figures because 100.0 only has three.

7 0
4 years ago
Help me please Iknow it's easy but I need answers asap ​
Ne4ueva [31]

Answer:

1-if u are answering light waves question , then the answer is translucent mirror or objects

2- Oxygen

3- compass

5 0
3 years ago
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