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2 years ago

WILL GIVE BRAINLIEST!

Chemistry

1 answer:

Oliga [24]2 years ago

4 0

Answer:

Explanation:

Increasing the the temperature would favour the endothermic reaction which is the forward direction however increasing the pressure would make the reaction try to counteract this change by favouring the reaction that would create more products so the equilibrium will shift left instead of right.

Hope this helps.

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How would I complete this table?

defon

Answer:

Fist column, apply the density of water.

Second column is material density, so it's mass of sample / volume of sample

Explanation:

Water density is 1 g/mL

Mass / Volume

If you have 0.25 g, 0.45g and 0.46 g of water, then you have the same values as volume, 0.25mL, 0.45mL and 0.46mL.

Again, density is the relation mass / volume so:

2.20 g / 0.25mL

3.73 g / 0.46 mL

3.52 g / 0.45mL

4 0

3 years ago

How many molecules of CH4 are in 48.2 g of this compound? A) 2.00 x 1023 B) 5.00 x 10-24 C)1.81 x 1024 D) 4.00 E) 4.64 x 1026 10

Tasya [4]

<u>Answer:</u> The correct answer is Option C.

<u>Explanation:</u>

To calculate the number of moles, we use the equation:

$\text{Number of moles}=\frac{\text{Given mass}}{\text{Molar mass}}$

Given mass of methane = 48.2 g

Molar mass of methane = 16 g/mol

Putting values in above equation, we get:

$\text{Moles of }CH_4=\frac{48.2g}{16g/mol}=3.0125mol$

According to mole concept:

1 mole of compound contains $6.022\times 10^{23}$ number of molecules.

So, 3.0125 moles of methane will contain = $3.0125\times 6.022\times 10^{23}18.141\times 10^{23}=1.81\times 10^{24}$ number of molecules.

Hence, the correct answer is Option C.

8 0

3 years ago

Electron dot of NH3

aliya0001 [1]

Answer:

ok ok ok ok ok ok ok k ok ok o ko k ko k o k o ko ko

Explanation:

4 0

3 years ago

30ml of 0.10 NaOh neutralized 25.0ml of HCL determine the concentration of the HCL? PLEASE HELP ME ASAP

Contact [7]

The equation is one to one so you can use M1V1=M2V2
so
(30ml)(.10M)=(25ml)(x)
x= .12M

6 0

3 years ago

a volumetric pipette haas an uncertainty of 0.01 cm what are the lowest and highest possible volumes for a measurement of 0.20cm

Vanyuwa [196]

Answer:

Possible lowest volume = 0.19 cm

Possible highest volume = 0.21 cm

Explanation:

Given Data

uncertainty = 0.01 cm

total volume = 0.20 cm

Possible lowest volume = ?

Possible highest volume = ?

Solution:

Possible lowest volume = total volume - uncertainty

Possible lowest volume = 0.20 cm - 0.01 cm

Possible lowest volume = 0.19 cm

Possible highest volume = total volume + uncertainty

Possible highest volume = 0.20 cm - 0.01 cm

Possible highest volume = 0.21 cm

5 0

3 years ago