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pentagon [3]
4 years ago
13

Chemical equation to show cdso4 dissolves in water

Chemistry
1 answer:
olga_2 [115]4 years ago
5 0

no se bb si quieres salimos tu sabes

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50 grams of acetic acid C2H4O2 are dissolved in 200 g of water. Calculate the weight % and mole fraction of the acetic acid in t
Len [333]
50g   of   C_2H_4O_2   in   200g    H_2O

so:

\frac{50}{200+50}+100\%= \frac{50*100}{250}\%=20\%

MW of acid = 2*C+4*H+2*O = 2*12+4*1+2*16=

=24+4+32=60g/mol

so:

\frac{50g}{60g/mol}\approx0.83moles

it means that

in 50g of acid there is \approx0.83moles of acid

MW of H_2O = 2*H+O=2*1+16=2+16=18g/mol

so:

\frac{200g}{18g/mol}\approx11.11moles

it means that:

in 200g of water there is \approx11.11moles of water

therefore:

\frac{0.83mol}{11.11mol+0.83mol}= \frac{0.83mol}{11.94mol}=0.069

So your answers are:

20\%

and the mole fraction is:

0.069
6 0
4 years ago
The chemical reaction that is produced by modelage masks causes:
liraira [26]

Answer:

an increase in temperature

Explanation:

The chemical reaction that is produced by modelage masks causes: an increase in temperature

6 0
2 years ago
12.1 g CoCl3 calculate the amount, in moles
elena-s [515]

Answer:

Number of moles of CoCl3 =  0.09 moles

Explanation:

Given data:

Mass of CoCl₃ = 12.1 g

Number of moles = ?

Solution:

First of all we will calculate the molar mass.

Molar mass of CoCl3 = 28.01 + (35.5×3)

Molar mass of CoCl3 = 28.01 + 106.5

Molar mass of CoCl3 = 134.51 g/mol

Number of moles of CoCl3 = mass / molar mass

Number of moles of CoCl3 = 12.1 g/134.51 g/mol

Number of moles of CoCl3 =  0.09 moles

4 0
4 years ago
Answer them please i cant figure out what it is
miss Akunina [59]

Answer:

iv. The motion between A & B moves at a further distance than C & D's

v. The cyclist travels 800 meters

vi. It takes approx. 80 seconds

vii. The cyclist's speed is 10 meters per second (m/s)

viii. The cyclist's speed is also 10 meters per second (m/s)

vii. (2) The cyclist's average speed is 10 meters per second (m/s)

Explanation:

Speed is calculated using the formula distance divided by time (d/t)

vii (2) needs further explanation:

Though there is a moment of rest, the cyclist still travels the same speed throughout the entire trip. To check this answer however, you can total the distance and time the cyclist traveled and use speed formula to get 10 meters per second, again.

6 0
3 years ago
When these bond to make ccl4, what is the shape of a ccl4 molecule? linear circular tetrahedral trigonal planar
Aleks04 [339]
Its tetrahedral since there's four chlorine molecules around carbon
4 0
4 years ago
Read 2 more answers
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