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Shkiper50 [21]
4 years ago
6

Why is thinking of a homework plan is not a form of work?

Chemistry
1 answer:
fredd [130]4 years ago
8 0
This don’t make sense ??
You might be interested in
What is the gram formula mass (molar mass) of Silicon Tetrabromide? Write the formula first!
agasfer [191]

Answer:

SiBr₄= 347.7 g/mol

Explanation:

Gram formula mass:

Gram formula mass is the atomic mass of one mole of any substance.

It can be calculated by adding the mass of each atoms present in substance.

SiBr₄:

Atomic mass of Si = 28.1 amu

Atomic mas of Br = 79.9 amu

There are four atoms of Br = 79.9 ×4

There is one atom of Si = 28.1 × 1

Gram formula mass of SiBr₄:

SiBr₄ = 79.9 ×4 + 28.1 × 1

SiBr₄= 319.6 + 28.1

SiBr₄= 347.7 g/mol

6 0
3 years ago
Please help me with this question. I don’t understand how to do it
klasskru [66]
Use the Keq equation.. concentraion of products divided by concentration of reactants at equilibrium. (with coefficients as exponents, none in this case reaction is balanced)

Keq = [PCl5] / ([PCl3] [Cl2])

fill in given values and solve for [Cl2] using algebra. Im just going to sub in "c" for the unknown.

0.00094 = 0.44 / 0.33c
0.0003102c = 0.44
c = 1418.44 mol/L
5 0
3 years ago
A student has a mixture of salt (NaCl) and sugar (C12H22O11). To determine the percentage, the student measures out 5.84 grams o
julsineya [31]

Answer:

The volume of 1.0 AgNO₃ that would be required to precipitate 5.84 grams of NaCl is 99.93 ml

Explanation:

Here we have the reaction of AgNO₃ and NaCl as follows;

AgNO₃(aq) + NaCl(aq)→ AgCl(s) + NaNO₃(aq)

Therefore, one mole of silver nitrate, AgNO₃, reacts with one mole of sodium chloride, NaCl, to produce one mole of silver choride, AgCl, and one mole of sodium nitrate, NaNO₃,

Therefore, since 5.84 grams of NaCl which is 58.44 g/mol, contains

Number \, of \, moles, n  = \frac{Mass}{Molar \ mass} =  \frac{5.84}{58.44} = 0.09993 \ moles \ of \ NaCl

0.09993 moles of NaCl will react with 0.09993 moles of AgNO₃

Also, as 1.0 M solution of AgNO₃ contains 1 mole per 1 liter or 1000 mL, therefore, the volume of AgNO₃ that will contain 0.09993 moles is given as follows;

0.09993 × 1 Liter/mole= 0.09993 L = 99.93 mL

Therefore, the volume of 1.0 AgNO₃ that would be required to precipitate 5.84 grams of NaCl is 99.93 ml.

3 0
4 years ago
How many moles of NaCl are equivalent to 15.6<br> grams of NaCl
NeX [460]

One mole of NaCl has a mass of approximately 58.5 grams. This gives it a conversion factor of 1/58.5

Hope This Helped

4 0
4 years ago
Pls answer how many neutrons, protons, and electrons there are. I will give points, thanks, 5 stars, and brainliest if you answe
kirill115 [55]

Answer:

19 electron 19 proton 20 neutrons

8 0
3 years ago
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