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A compound is found to have monoisotopic molecular mass of 154.0031 Which of the following molecular formula match the measured molecular mass? (use web based calcu...

Question

A compound is found to have monoisotopic molecular mass of 154.0031 Which of the following molecular formula match the measured molecular mass? (use web based calculators (or your own calculator) to identify the correct molecular formula)Select one: csHeN2O3 CgH-FOz C3H-O5P C2H3l

A compound is found to have monoisotopic molecular mass of 154.0031 Which of the following molecular formula match the measured molecular mass? (use web based calculators (or your own calculator) to identify the correct molecular formula) Select one: csHeN2O3 CgH-FOz C3H-O5P C2H3l



Answers

Determine the molecular mass of the following compounds:
a)
b)
c)
d)

All right, So this question has been asked to copy the Muslim ass off forward compounds. And here I've just look at the question and confident I'm off. I don't like these compounds have. So it's it would be a good practice for you to check if you get the same number of items with each of the elements. So yeah. So basically, they've given you chemicals structure, and you have to first did use the well look left for Miller and then copied the Muslim s to hear. For the Mo klemas we have to do is essentially find out the monuments of each of these elements and mostly by their respective amounts in each of the molecules. So for the first part, see, for age eight, the mill emus off carbon is so when 011 atomic mass units. Because we have four governments in this small kill, you just must like that by four. And likewise we have eight religions. So we find what the dilemmas of hydrogen is, which is 1.8 and more to play by eight. And that should give us approximately 56 when one's a reach. Stomach mass units. The second part, it's essentially the same approaches the first part. And the second medical here is very similar to the first. Accept that the 2nd 1 is too less hydrogen Sze. So what we can do is we can take what we just calculated. 61108 minus one point is there is there eight times two Who is this? Us to hydrogen is less than this. So once you do that, you should get approximately before point 092 permit last units for party. We have silicon hydrogen carbon. So just have to follow the same approach. We fold in the previous examples and here you have to find the monuments of silicone s and that's to any 8.85 when we have to. So my atoms and we then have to head regions which ever d with the movements of that iss absolutely have a chlorine. Folklore is actually so almost 1/4 steady. What a beautiful five we have for these school. If you tell Lee all these result, we should get approximately 199 point 986 dark mass units. And lastly, we have monocle just once reception and hydrogen. So for fortress the look, the mass of the Muslim masses 30.974 You only have one of this. We've got to worry about. Let's find a way. Anything. And for oxygen we have Well, Oxygen's 51 999 times for it was Jin. We have you know there is a eight. Why three? That should give us 97.994 Tell me what she gets.

Okay, so the sub script in the molecule formula off a substance are always the bowl number multiplies this off script in the empirical formula. Using this The empirical formula given his ch two on the molar mass is 84 grams. The empirical formula is this. Some off atomic beats off atoms in the compound. So the empirical formula V eight will be 14. That is 12 for carbon and one for hydrogen de Voll. Number multiple is six. So my deep link the empirical formula with six give us the molecular formula as C six extra for compound to be. We have the molecule. We have the empirical formula as image to seal on the molar mass as 51.5 grams. The mask off empirical formula alone is 51.5. Atomic wants unit on de Voll number multiple is also one hands. Nothing will be changed in this option. The empirical formula is seen as the molecule of formula

Mhm chinese question the empirical formula of some countries given and also the Ebola masses. So next question we have to find the molecular formula of each of these football games. Now the imperial mass of see for a size equal to four into more myself urban and last night into well myself. So it calculates different points. Now if you find in that is color must be empirical mass. The molar mass has given us 100 14.22 divide by empirical method is 57 when we get to and we can say that the uh the molecular formula of the uh above compelling option K. Is the policy for its name both ways that is equal to C eight H 18 and this is the multiple from doesn't form. Now we'll do the same thing With the 2nd 1 that is uh cecile. Now empirical mass of Sicily pull too Will continue one plus 25.45 people. 47.46 In the recall the more robust empirical master is 24.77. There were 47.46 because the masses for what concerns them. Now we will get uh equal to six and some vulnerable becomes CCL policies that is 666. Similarly for the target that is C three H two N. The molar mass is giving us 301st will find the bridal mask that is equal to Trying to just 21 point graduate 40 points driven that is 52.056. Now any equal to Moral master empirical master difficult to 320 x 52.056. And it comes out that comes out of six. And you can say that the molecule from logical to C three H two N whole six that is equal to 3 18, H. 12 and six. And this is the Malaysia and left the compound in the a little bit.

To determine the molecular formula from the empirical formula, we need to calculate the sub script multiplier. The subsequent multiplier can be determined by dividing the empirical formula molar mass into the actual molar mass. The empirical formula is ch, It's the only mass is 13.019. We'll divide that into 78 and we get six. So that means we multiply the sub scripts of everything in the empirical formula by six. To get the molecular formula of c. six. H. 6. For the next one we have O. H. Is the empirical formula. It's empirical formula Mueller masses 17.7 By taking the mass of oxygen and adding on the mass of hydrogen To get the subsequent multiplier will divide that into the actual molar mass of 34.0 And get a value of two. So we multiply oxygen by two and hydrogen by two to get the molecular formula H. 202.


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