2 years ago

How many valence electrons are in atom of sulfur?

Chemistry

1 answer:

Nookie1986 [14]2 years ago

8 0

The answer is six because it is in group six A on the periodic table.

You might be interested in

Please help Me Answer this

SOVA2 [1]

Objects that produce heat are coal, liquid fuels, gasoline, oil, and gaseous fuels

8 0

2 years ago

Read 2 more answers

What will be the pH of 1.0 mol dm-3 of NH4OH, which is 1% dissociated

Zielflug [23.3K]

Reaction is NH4OH <-> NH4+ OH- (note this is reversible)

Draw up an ICE table

Let x be equilibrium conc of OH- assume init conc of OH is 0M and init conc of NH4+ is 0M also. Init conc of NH4OH is 0.1M so equilibrium conc will be 0.1-x.

%dissociation = x/0.1-x * 100%

1 = 100x/0.1-x

0.1-x = 100x

101x = 0.1

x = 0.0009901

pOH = -log(0.0009901) = 3.00

5 0

2 years ago

What is the H+ ion concentration of a solution with a pH of 7?

wariber [46]

Answer:

10-7mol/l

Explanation:

7 0

2 years ago

Read 2 more answers

A gas occupies the volume of 215ml at 15C and 86.4kPa?

kherson [118]

Answer:

About 0.1738 liters

Explanation:

Using the formula PV=nRT, where p represents pressure in atmospheres, v represents volume in liters, n represents the number of moles of ideal gas, R represents the ideal gas constant, and T represents the temperature in kelvin, you can solve this problem. But first, you need to convert to the proper units. 215ml=0.215L, 86.4kPa is about 0.8527 atmospheres, and 15C is 288K. Plugging this into the equation, you get:

$0.8527\cdot 0.215=n \cdot 0.0821 \cdot 288\\n\approx 7.754 \cdot 10^{-3}$

Now that you know the number of moles of gas, you can plug back into the equation with STP conditions:

$1V=7.754 \cdot 10^{-3} \cdot 0.0821 \cdot 273\\V\approx 0.1738L$

Hope this helps!

3 0

3 years ago

The distances from large bodies of water will affect the average rainfall of an area. (Example: Florida has more rain than Nevad

lions [1.4K]

Answer:

Explanation:

7 0

2 years ago