A 8.13 g sample of HCN is found to contain 0.301 g of H and 4.22 g of N.

Find the mass of carbon in a sample of HCN with a mass of 3.39 g.

g carbon = 8.13-0.301-4.22 = ??g

% C = (??g/8.13)*100

3.39 x (%C/100) = xx

To find the mass of carbon in a sample of HCN with a mass of 3.39 g, we need to first calculate the mass of hydrogen and nitrogen in the sample, and then subtract the sum of these masses from the total mass of the sample.

Given:
Mass of HCN = 3.39 g
Mass of H = 0.301 g
Mass of N = 4.22 g

Step 1: Calculate the total mass of hydrogen and nitrogen in the sample.
Total mass of H + N = Mass of H + Mass of N
Total mass of H + N = 0.301 g + 4.22 g
Total mass of H + N = 4.521 g

Step 2: Subtract the total mass of hydrogen and nitrogen from the mass of HCN to find the mass of carbon.
Mass of carbon = Mass of HCN - Total mass of H + N
Mass of carbon = 3.39 g - 4.521 g
Mass of carbon = -1.131 g

Since the mass of carbon is negative (-1.131 g), it suggests that there may be an error in the given data or calculations. Please re-check the values provided or the calculations performed.

To find the mass of carbon in a sample of HCN with a mass of 3.39 g, we can use the information given in the problem.

Let's start by finding the total mass of hydrogen and nitrogen in the 8.13 g sample of HCN.

The mass of hydrogen (H) is given as 0.301 g, and the mass of nitrogen (N) is given as 4.22 g.

Total mass of hydrogen and nitrogen = mass of hydrogen + mass of nitrogen
Total mass of hydrogen and nitrogen = 0.301 g + 4.22 g
Total mass of hydrogen and nitrogen = 4.521 g

Now, let's find the mass of carbon (C) in the 8.13 g sample of HCN.

Mass of carbon = Total mass of HCN - Total mass of hydrogen and nitrogen
Mass of carbon = 8.13 g - 4.521 g
Mass of carbon = 3.609 g

Now, we have determined that the mass of carbon in the 8.13 g sample of HCN is 3.609 g.

To find the mass of carbon in a sample of HCN with a mass of 3.39 g, we can use a proportion.

Let x be the mass of carbon in the 3.39 g sample of HCN.

The proportion can be set up as follows:

Mass of carbon / Total mass of HCN = Mass of carbon in the 8.13 g sample / Total mass of HCN in the 8.13 g sample

x / 3.39 g = 3.609 g / 8.13 g

To solve for x, we can cross multiply and then divide:

x * 8.13 g = 3.609 g * 3.39 g
x * 8.13 g = 12.24351 g^2
x = 12.24351 g^2 / 8.13 g
x = 1.505 g (rounded to three decimal places)

Therefore, the mass of carbon in a sample of HCN with a mass of 3.39 g is approximately 1.505 g.