2 years ago

Question 5 (1 point) How many moles of oxygen gas is needed to produce 36 grams of water?

1 answer:

6 0

Answer:

1 Oxygen atom has a mass of 16 grams, thus diatomic oxygen weights twice as much- 32 grams. Hence 32 grams is needed.

You might be interested in

The taste of drinking water can be improved by removing impurities from our municipal water by adding substances to the water th

tia_tia [17]

Abcdefghigklmnopqrstuvwxyandz

3 0

3 years ago

In a 10-gram sample of carbon and a 10-gram sample of sulfur, how many more moles of carbon are there than sulfur?

8_murik_8 [283]

Your answer will be the second option

5 0

3 years ago

Read 2 more answers

Potassium is a metal. Which property would you expect it to have?

bazaltina [42]

Answer: It’s a bad conductor of electricity

Explanation:

8 0

3 years ago

White vinegar is a 5.0% by mass solution of acetic acid in water. If the density of white

Alex_Xolod [135]

The pH = 2.41

<h3>Further explanation</h3>

Given

5.0% by mass solution of acetic acid

the density of white vinegar is 1.007 g/cm3

Required

Solution

Molarity of solution :

$\tt M=\dfrac{\%mass\times \rho\times 10}{MW~acetic~acid}\\\\M=\dfrac{5\times 1.007\times 10}{60}\\\\M=0.839$

Ka for acetic acid = 1.8 x 10⁻⁵

[H⁺] for weak acid :

$\tt [H^+]=\sqrt{Ka.M}$

Input the value :

$\tt [H^+]=\sqrt{1.8\times 10^{-5}\times 0.839}\\\\(H^+]=0.00388=3.88\times 10^{-3}\\\\pH=3-log~3.88=2.41$

7 0

3 years ago

3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next

Debora [2.8K]

Answer:

PART A

Explanation:

3. A cylinder of compressed gas has a pressure of 4.882 atm on one day. The next

day, the same cylinder of gas has a pressure of 4.690 atm, and its temperature is

8°C. What was the temperature on the previous day in °C? Ans: 20°C.

7 0

3 years ago