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Fittoniya [83]
3 years ago
7

1. How many protons does 14/6 C contain? What element is this?

Chemistry
1 answer:
Harman [31]3 years ago
3 0

Answer:

It has 6 protons and its Carbon 14

Explanation:

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Which is a homogeneous mixture?<br> a. pizza<br> b. woven fabric<br> c. concrete<br> d. vinegar
Tems11 [23]

Answer:

vineger

Explanation:

homogeneous mixture cannot be separated pyhsically

8 0
2 years ago
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In a transverse wave what is measured from crest to crest
galina1969 [7]
Wavelength is measured from crest to crest.
5 0
3 years ago
Using your knowledge of Greek and Latin roots and affixes, what does "synchronize" mean?
Ksenya-84 [330]

Answer:

"Synchronize" means to place together in terms of time and manner.

Explanation:

  • In the word 'synchronize' the prefix added is 'syn'.
  • The prefix 'syn' has been derived from the Greek language.
  • The prefixes 'syn' and 'sym' are equivalent in terms of their meanings.
  • The meaning of the prefix is to put 'together'.
  • The words formed by adding the prefix es 'syn' and 'sym' highlights the meaning of togetherness of the specific things.
  • Here, the word 'synchronize' means to put together in terms of time and manner.
6 0
3 years ago
A solution of permanganate is standardized by titration with oxalic acid, . To react completely with mol of oxalic acid required
Zielflug [23.3K]

Answer:

M=0.120M

Explanation:

Hello,

In this case, the undergone chemical reaction is:

MnO_4^-(aq)+H_2C_2O_4(aq)\rightarrow Mn^{+2}+CO_2

In such a way, the acidic redox balance turns out:

(Mn^{+7}O_4)^-+5e^-+8H^+\rightarrow Mn^{+2}+4H_2O\\H_2C_2O_4\rightarrow2CO_2+2H^++2e^-

Which leads to the total balanced equation as follows:

2(MnO_4)^-(aq)+6H^+(aq)+5H_2C_2O_4(aq)\rightarrow2Mn^{+2}(aq)+8H_2O(l)+10CO_2(g)

Thus, as the mass of oxalic acid is not given, one could suppose a value of 1 g (which you can modify based on the actual statement) in order to compute the oxalic acid moles as shwon below:

1gH_2C_2O_4*\frac{1molH_2C_2O_4}{90.04gH_2C_2O_4} *\frac{2mol(MnO_4)^-}{5molH_2C_2O_4} =0.00444mol(MnO_4)^-

Whereby the molality results:

M=\frac{0.00444mol(MnO_4)^-}{0.03702L} =0.120M

Remember you can modify the oxalic acid mass as you desire.

Best regards.

5 0
3 years ago
The solubility of sodium hydrogen carbonate in water 20 degrees is 9.6 g/100 g h2o.
d1i1m1o1n [39]

We can see from the details below that, the value of the solution's molality is 1.14 mol/Kg.

<h3>What is solubility?</h3>

The term solubility has to do with the quantity of solute that is able to dissolve in a given quantity of solvent. We have the solubility of the sodium hydrogen carbonate in water at 20 degrees as 9.6 g/100 g h2o.

Number of moles of sodium hydrogen carbonate = 9.6 g/84 g/mol = 0.114 moles

Number of moles water = 100 g /18 g/mol = 5.55 moles

Mole fraction of sodium hydrogen carbonate is obtainable by the use of the relation;

0.114 moles/0.114 moles + 5.55 moles

= 0.02

Molality of the solution = 0.114 moles/0.1 Kg = 1.14 mol/Kg

Learn more about solubility:brainly.com/question/8591226

#SPJ4

6 0
2 years ago
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