Sapling Learning an laaming A sample of C3Hs has 3.36 x 1024 H atoms. How many carbon atoms does the sample contain? Number 1.26x 10 C atoms What is the total mass of the sample? Number 44.0 g C,H orrect. Here are two methods for finding the mass of CsHs. Method 1: Convert from H atoms to moles of H using Avogadro's number, thern of H using the molar mass of H. Next, find the mass of C using the same proce masses of C and H