C12 Hzz Oi 1S 179.99 X 100 342.29 How to convert from grams to moles to number of substance? Use Use Avogadro's - number Formula unit Grams Moles molar mass 2. How many sodium atoms are in 100.0 g of sodium atoms? 3. The molecular formula for allicin, the compound responsible for the smell of garlic, is C6H10OS2. a) What is the molar mass of allicin? b) How many moles of allicin are present in 5.00 g of this substance? c) How many molecules of allicin are in 5.00 g of this substance? d) How many sulfur atoms are in 5.00 g of this substance? e iver metal and ane

C12 Hzz Oi 1S 179.99 X 100 342.29 How to convert from grams to moles to number of substance? Use Use Avogadro's - number Formula unit Grams Moles molar mass 2. How many sodium atoms are in 100.0 g of sodium atoms? 3. The molecular formula for allicin, the compound responsible for the smell of garlic, is C6H10OS2. a) What is the molar mass of allicin? b) How many moles of allicin are present in 5.00 g of this substance? c) How many molecules of allicin are in 5.00 g of this substance? d) How many sulfur atoms are in 5.00 g of this substance? e iver metal and ane

Introductory Chemistry: A Foundation

9th Edition

ISBN:9781337399425

Author:Steven S. Zumdahl, Donald J. DeCoste

Publisher:Steven S. Zumdahl, Donald J. DeCoste

Chapter8: Chemical Composition

Section: Chapter Questions

Problem 128CP: itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is...

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itamin B12 , cyancobalamin, is essential for human nutrition. Its molecular formula is C63H88CoN14O14P . A lack of this vita min in the diet can lead to anemia. Cyanocohalamin is the form of the vitamin found in vitamin supplements. l type='a'> What is the molar mass of cyanocobalamin to two decimal places? How many moles of cyanocohalamin molecules are present in 250 mg of cyanocobalamin? What is the mass of 0.60 mole of cyanocobalamin? How many atoms of hydrogen are in 1 .0 mole of cyanocobalamin? What is the mass of 1.0107 molecules of cyanocobalamin? What is the mass (in grams) of one molecule of cyanocobalamin?
One chocolate chip used in making chocolate chip cookies has a mass of 0.324 g. (a) How many chocolate chips are there in one mole of chocolate chips? (b) If a cookie needs IS chocolate chips, how many cookies can one make with a billionth (1109) of a mole of chocolate chips? (A billionth of a mole is scientifically known as a nanomole.)
Cyclopropane mixed in the proper ratio with oxygen can be used as an anesthetic. At 755 mm Hg and 25C, it has a density of 1.71 g/L. (a) What is the molar mass of cyclopropane? (b) Cyclopropane is made up of 85.7% C and 14.3% H. What is the molecular formula of cyclopropane?
The meat from one hazelnut has a mass of 0.985 g. (a) What is the mass of a millionth of a mole (106) of hazelnut meats? (A millionth of a mole is also called a micromole.) (b) How many moles are in a pound of hazelnut meats?
A 0.755-g sample of hydrated copper(II) sulfate CuSo4xH2O was heated carefully until it had changed completely to anhydrous copper(II) sulfate (CuSO4 ) with a mass of 0.4183 g. Determine the value of x. [This number is called the number of waters of hydration of copper(II) sulfate. It specifies the number of water molecules per formula unit ofCuSO4 in the hydrated crystal.]
What is the percent by weight (w/w%) of sugar in soda? Assume the average mass of sugar in soda is 29 g and the total mass is 370 g.
A typical tablet of regular strength Tylenol contains 325 mg of acetaminophen (C8H9NO2). How many moles of acetaminophen are contained in a Tylenol tablet?
3. In Hubei China, Ten hospitals were used to do a trial for Remdesivir drugs. Patients age 18 and above was admitted with a laboratory confirmed SARS COV 2 infection. Patients were assigned to intake 0.20 g of Redmesivir on the first day and followed by 0.10 g on the following days. How much molecules of Remdesivir was used on the first day? A. 1998 x 1018 molecules of C27H35N6O8P B. 1998 x 1019 molecules of C27H35N6O8P C. 1998 x 1020 molecules of C27H35N6O8P D. 1998 x 1021 molecules of C27H35N6O8P
Vitamin C has a formula of C6H8O6, calculate the number of vitamin molecules present in a 0.250g of pure vitamin C
Wine is approximately 12% ethanol (CH3CH2OH) by volume. Ethanol has a molar mass of 46.06 g/moland a density 0.789 g/mL. How many moles of ethanol are present in a 750-mL bottle of wine?(% by vol calculation, then density, then g→ mol)
(-4.3x10^4 mol/kg)x?=?mol/g
I am having a bit of trouble with significant figures and rounding. In a question such as the one below, would the sig fig I put in my answer be correct? How many moles are present in 3.44 g CoCl2 ꞏ 6H2O? = (Which sig fig amount is correct-->) .0217 moles or .021 moles The whole answer was 0.02177904, would I round this answer to the 3rd sig fig? So, is the correct answer actually .022?