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Alexxx [7]
3 years ago
5

Easy question, need help

Chemistry
2 answers:
jeka943 years ago
8 0

Answer: B= 210 amps

Explanation:

175

0.75 so you divide it so the answer it 210

since first you find for one

then you multiply 0.75 to the answer you get

Hope this helps :)

Debora [2.8K]3 years ago
7 0

Answer:

210 amps

Explanation:

B

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Answer:

the pressure increased

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The combustion of 1.685 g of propanol (C3H7OH) increases the temperature of a bomb calorimeter from 298.00 K to 302.16 K. The he
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Answer:

ΔH =  - 2020.57 kJ/mol

Explanation:

Given that :

mass of propanol = 1.685 g

the molar molar mass = 60 g/mol

Thus; the number of  moles = mass/molar mass

= 1.685 g/60 g/mol

= 0.028 g/mol

However ;

ΔH = heat capacity C × Δ T

Given that:

The temperature increases from  298.00 K to 302.16 K.

Then ;

Δ T = 302.16 K - 298.00 K

Δ T = 4.16 K

heat capacity C = 13.60 kJ/K

∴

ΔH = 13.60 kJ/K × 4.16 K

ΔH =  56.576 kJ

The equation of the given reaction can be represented as :

C_3H_7OH_{(l)}+\dfrac{3}{2}O_{2(g)}  \to 3CO_{2(g)} +4H_2O_{(l)}

Thus for 0.028 mol of heat liberated; ΔH =  56.576 kJ

For 1 mole of heat liberated now:

ΔH =  56.576 kJ/0.028 mol

ΔH =  2020.57 kJ/mol

SInce , Heat is liberated, the reaction undergoes an exothermic reaction thus;

ΔH =  - 2020.57 kJ/mol

5 0
3 years ago
Read 2 more answers
How many grams of fluorine must be reacted with excess lithium iodide to produce 10.0 grams of lithium fluoride?
rewona [7]
Answer:
             7.32 g of F₂

Solution:
              The equation is as follow,

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According to equation,

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So,
                          10 g of LiF will be produced by  =  X g of F₂

Solving for X,
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                      X  =  7.32 g of F₂
8 0
3 years ago
How do i find the mole of something?
nikklg [1K]
To find the mole of a substance, you take the mass divided by the molar mass of that substance~
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The p-value of a statistical test depends on all of the following, except:
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Answer:

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For two two samples the formula of test statistics is

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Variance is the square of standard deviation.

It means variance, mean, numbers of samples is used in calculation of p-value.

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p-value of a statistical test depends on all of the following, except median.

Therefore the correct option is e.

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3 years ago
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