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2 years ago

How does sticky notes work ?

Chemistry

2 answers:

dedylja [7]2 years ago

7 0

Answer:

sticky notes will open where you left them in the list of notes Tao or double click a notes to open it or from the keyboard press ctrl+n to start a new note to close a note tap or double click the class icon (x)

elena55 [62]2 years ago

6 0

Answer:

Sticky Notes will open where you left them. In the list of notes, tap or double-click a note to open it. Or from the keyboard, press Ctrl+N to start a new note. To close a note, tap or double-click the close icon ( X ).

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If the container is closed and the ethanol is allowed to reach equilibrium with its vapor, how many grams of liquid ethanol rema

SVETLANKA909090 [29]

Explanation:

Let us assume that the given data is as follows.

V = 3.10 L, T = $19^{o}C$ = (19 + 273)K = 292 K

P = 40 torr (1 atm = 760 torr)

So, P = $\frac{40 torr}{760 torr} \times 1 atm$

= 0.053 atm

n = ?

According to the ideal gas equation, PV = nRT.

Putting the given values into the above equation to calculate the value of n as follows.

PV = nRT

$0.053 atm \times 3.10 L = n \times 0.0821 L atm/mol K \times 292 K$

0.1643 = $n \times 23.97$

n = $6.85 \times 10^{-3}$

It is known that molar mass of ethanol is 46 g/mol. Hence, calculate its mass as follows.

No. of moles = $\frac{mass}{\text{molar mass}}$

$6.85 \times 10^{-3} = \frac{mass}{46 g/mol}$

mass = $315.1 \times 10^{-3}$ g

= 0.315 g

Thus, we can conclude that the mass of liquid ethanol is 0.315 g.

4 0

3 years ago

What is the color of benzene and bromine

Harman [31]

Bromine is a reddish-brown color.
Benzene is clear or colorless

6 0

3 years ago

Read 2 more answers

Analyze complete and balance the following equation co2(g)+hcl(aq)

Anna007 [38]

Answer:

$CO_{2} (g)+4HCl(aq)->2H_{2} O(g)+CCl_{4} (g)$

This is a double displacement reaction, C goes with Cl in the products side and O2 goes with H. All that is left is to balance the equation, making sure each side has equal amounts of atoms.

4 0

2 years ago

The gas in a closed container has a pressure of 3.00 x 10² kPa 30 ° C. What will the pressure be if the temperature is lowered t

Rainbow [258]

Answer: 100kPa

Explanation:

P1 = 3.00 x 10² kPa , P2 =?

T1 = 30°C = 30 +273 = 303k

T2 = —172°C = —172 + 273 = 101k

P1/T1 = P2/T2

3 x 10² / 303 = P2 / 101

P2 = (3 x 10² / 303) x 101

P2 = 100kPa

6 0

3 years ago

Why is the cloning of Dolly the sheep important to humans? Animals that produce human medicines could be cloned. Cloned animals

a_sh-v [17]

Answer:

C. better meat

Explanation:

Farmers always are looking to better their stock to possibly increase milk production or increase the meat quality.

5 0

3 years ago

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