Answer: 6.56g
Explanation:
No of moles = mass given/molar mass
Molar mass of ch4
C is carbon which is 12
H is hydrogen which is 1
Molar mass= 12+4(1)
Molar mass= 16g/moles
No of moles given is 0.41moles
No of moles = mass given/molar mass
Mass given = molar mass × no of moles
Mass given = 16×0.41
Mass= 6.56g
Answer:
1 200 000 000 000 000 000 000 000 H⁺ ions
Step-by-step explanation:
Assume that the concentration of H⁺ ions in stomach ions is <em>2.0 mol·L⁻¹.</em>
Then, we have 2.0 mol of H⁺ ions
There are 6.02 × 10²³ H⁺ ions in 1 mol.
2.0 mol = 2.0 × 6.022 × 10²³/1
= 1.2 × 10²⁴ H⁺ ions
= 1 200 000 000 000 000 000 000 000 H⁺ ions
In order to calculate the average value of cells B2:B6, you need to enter the formula on cell B7, On the Home tab, in the Editing group, click the Sum (AutoSum) button arrow and select Average . (and press Enter). The answer in this question is On the Home tab, in the Editing group, click the Sum (AutoSum) button arrow and select Average . (and press Enter).
Explanation:
A colloid is a heterogeneous mixture whose particle size is intermediate between those of a solution and a suspension. The dispersed particles are spread evenly throughout the dispersion medium, which can be a solid, liquid, or gas.