Q7) a compound is found to contain 40 % carbon, 6.7 % hydrogen, and 53 % oxygen by weight. What is the empirical formula for this compound? (Where the atomic weight of O is 16 and for H is 1 and for C is 12) Qs) who many allotropes does carbon element has? Which is harder?

Q7) a compound is found to contain 40 % carbon, 6.7 % hydrogen, and 53 % oxygen by weight. What is the empirical formula for this compound? (Where the atomic weight of O is 16 and for H is 1 and for C is 12) Qs) who many allotropes does carbon element has? Which is harder?

Chemistry: Principles and Reactions

8th Edition

ISBN:9781305079373

Author:William L. Masterton, Cecile N. Hurley

Publisher:William L. Masterton, Cecile N. Hurley

Chapter3: Mass Relations In Chemistry; Stoichiometry

Section: Chapter Questions

Problem 1QAP: One chocolate chip used in making chocolate chip cookies has a mass of 0.324 g. (a) How many...

See similar textbooks

Related questions

Q: Determine the formula weight of Al2(SO4)3. Provide an answer to two decimal places.

A: The compound given is Al2(SO4)3. In each molecule of Al2(SO4)3 we have, 1) 2 atoms of Al 2) 3 atoms…

Q: An irregular shape of silicon block (density = 1.93 g/cm3) is deepened into water and caused a 31 mL…

A: Provided density of Si block=1.93g/cm3 Also, 1 cm3=1 ml Volume of Si=increased volume of water after…

Q: To raise the temperature of 75.0 g of a particular metal by 1.50 °C requires 107 calories of heat.…

A: Specific heat: It is defined as the amount of heat required to raise the temperature by 1gm of a…

Q: Never heat the mixture until the distillation flask is dry as this may cause an explosion. O True O…

Q: In the air we breathe at 74.0 ∘F∘F and 1.09 atmatm pressure, how many molecules does a typical cubic…

Q: the given below. Wie 1. _H₂ + 0₂ 2. Zn _HCI 3. _Al _Fe(NO3)2 4. _NaNO3 _NaNO₂ NaOH + KNO3 >> 5. _H₂O…

A: The chemical equation is a symbolic representation of the Reaction takes place where one or more…

Q: Use the standard entropy data to determine the change in entropy for each of the reactions listed (…

A: Since you have posted question with multiple sub-parts, we are entitled to answer the first 3 only.…

Q: Please answer a-c

A: (a) To calculate the moles of water lost, As per the given information, Mass of water lost is 0.351…

Q: CH«g) + O3(g) → CO2(g) + 2H2O(g) AH? (kJ/mol) -249.2 Substance Substance AHf (kJ/mol) H2O1) H2Og)…

A: Calculate change in enthalpy of the given reaction---

Q: (a) 2CH4(g) + 2CO2(g) CH4(g) + 2H0(g) + 2CO (g) (b) CO2(g) + 3H;(g) → CH;OH(g) + H2O(g) (c)…

Q: Which is expected to have AS°rxn < 0? 1.4Al(s) +302(g) → 2A12O3(s) 2. PCI5(g) PCI3(g) + Cl2(g) 3.…

A: If heat flows into the system from the surroundings, Delta S of the surroundings is less than zero.

Q: a. N204(g) ® 2 NO2(g) b. NaCI(s) ® Na *(aq) + CI "(aq) c. 2 NH3 ® N2(g) + 3 H2(g) d. CaO(s) + CO2(g)…

A: Entropy is degree of randomness or disorder in a system. Entropy of a system is directly…

Q: Dinitrogen monoxide (N₂O; nitrous oxide) is a greenhousegas that enters the atmosphere principally…

A: Isotopes possess same number of protons but differ in number of neutrons thus, they have different…

Q: hat is the final 1. HNO3, H₂SO4 2. H₂, Pd/C OH NO₂ NEN HSO4 =0 C10H15N 1. NaNO₂, H₂SO4, H₂O, 0 °C 2.…

Q: 8192g0 heafed behind L The NiSO Hydrate Calcula 9Thhe mas hydrate bThe CThe 'mole mo d The rati…

A: a.) 3.366 g b.) 0.187 moles H2O c.) 0.0312 moles NiSO4 d.) Ratio= 6 e.) x=6, NiSO4.6H20

Q: 1. Which of the following is a good conductor of electricity? A. Cu 2. What will happen if two…

A: We have to answer the above mentioned question.

Q: Calculate the % composition of all the elements in Mg(CIO2)2. Show only the % of elements below.

A: Mass of Mg in 1 mol Mg( ClO2)2 = 24.3 g Mass of Cl in 1 mol of Mg(ClO2)2 = 2 × 35.5 g…

Q: 2NO(g) + O2(g)→2NO2(g) | 2KMNO4(s)→ K2MNO4(s) + MnO2(s) + O2(g) CH=CH(g) + H2(g)→ CH2 =CH2(g) Na(s)…

A: We are well-known to us that, the entropy measures the degree of randomness. So, as the degree of…

Q: 6.35 x10 to the 22nd power molecules of H2SO4 then how many grams of H

A: Number of mole and number of particles are related to each other as follows:Where, NA is avogadro’s…

Q: pse all that apply. 20(g) + 2SÓ2(g) 2H2S(g) s,rhombic) + 2CO(g) SO2(g graphite) 2H6(g) + 702(g)…

A: Entropy is the measure of randomness.

Q: One mole of gallium (61023 atoms) has a mass of 70 grams, as shown in the periodic table on the…

A: Introduction: Introduction: The density will be the same for one atom and a large part of the…

Q: Complete the Calculations to find the weight NV= wt %3D 60 lo00 0,945 = 60 %3D loou

A: We can solve the calculation by cross multiplication. We know that, normality is the gram equivalent…

Q: Question 1

A: Balanced chemical equation of a reaction is written according to law of conservation of mass. Thus,…

Q: 28. What is the coefficient of H₂O when the following equation is properly balanced with smallest…

A: A balanced chemical equation is the one that contains the same count of different types of atoms on…

Q: Potassium chloride is a salt substitute. It consists of potassium cations and chloride anions.…

A: 1.Element are simple form of matter , example Na. 2.ionic compound are the compound form by cation…

Q: I.S. B he tollowing formulá unit equation. What is the sum of all of the coefficients? HNO3 ZnS- S+…

A: A balanced equation obeys the law of conservation of mass where the number of atoms remains constant…

Q: A cable making company produces a metal wire, with a diameter of 1.00 mm. What will be the length of…

A: Given: Metal wire diameter=1 mm No. of moles=1 Density of metal=17 g/cm3

Q: Tungsten is a very dense metal (19.3 g/cm3) with extremely high melting and boiling points (3370ºC…

A: Let the mass of CaWO4 is w gram. As given Mass of W in CaWO4 =mass of W in 657g of FeWO4 Moles of…

Q: What is T

Q: C7H16(g) + O2(g) → C2H2(g) + O2(g) → C3H8O(g) + O2(g) →

A: Note : As per our company guidelines we are supposed to answer only first 3 sub-parts. Kindly repost…

Q: Determine the elements ratio of the following compounds: Na2S C3H8 C6H12O

Q: A 0.4017 g sample of nicotine was analyzed and found to consist of 0.2974 g C, 0.03494 g H, and…

Q: Which of the following gases consist of molecules containing four or more atoms? O Rn O NO O CO Ar…

A: Gases; those molecules in which force of attraction are weak and they are free to move in space of…

Q: 15. Kkura found a sulfide ore in the dungeon which she identified to be chalcocite. While waiting…

Q: The density of aluminum is 2.7 g/cm3; that of silicon is 2.3 g/cm3. Explain why Si has the lower…

A: Silicon, the symbol Si and the atomic number 14, are a chemical element. It is a tough, brittle,…

Q: B. C10H1604 compound? A. Mixing NaCl with H₂O C. Wax burning Q12. Which of the following does not…

A: Question no. 12 as specified.

Q: Determine the formula weight of Al¿(SO4) 3. Provide an answer to two decimal places.

A: • Aluminium sulfate, Al2(SO4)3 consists of two aluminium atoms, 3 sulfur atoms and 12 oxygen atoms.…

Q: Up late, a (tired) engineer calculated the molar mass of nitroglycerin (C3H5N3O9) to be 196.2 g/mol,…

A: Nitroglycerin = C3H5N3O9 Molar mass of nitrohlycerin = 196.2 g/mol Percent error = ?

Q: Which of the following is most likely going to be a heterogeneous mixture? (A) C10H8 and H2O…

A: Heterogeneous mixture is a type of mixture which has all components in different phases and also the…

Q: Cgrafito + 2H2 CH4(9) CH4(g) + 202(g) CO2(9) + 2H2Ou) ACH°= -802.37 kJ/mol Cgrafito + O2(g) CO2(9)…

A: Applying Hess's law and with help of data given it is determined that formation∆HCH4.

Q: Which of the following gases consist of molecules containing three or more atoms?? O Rn O N,0 CI, Ar…

Q: Which of the following will be homogeneous mixture? (A) All of them (B) N2 and Ar (C)…

Q: A cable making company produces a metal wire, with a diameter of 1.00 mm. What will be the length of…

A: Volume of a cylinder (wire) is given by: V=πr2h…

Q: Calculate the number of moles found in 967 grams of Sr(C2H3O2)2. mol Give your answer to 2 decimal…

A: Given, mass of Sr(C2H3O2)2 = 967 g number of moles found in 967 g of Sr(C2H3O2)2 = ? Note: Atomic…

Q: K20 + H2O КОН ↑

A: The given unbalanced chemical reaction is, _______K2O + ______H2O ------>…

Q: FHOW is it different? 2.80 Consider a mixture of 10 billion O2 molecules and 10 billion H,…

A: Molecules are particles that are formed by two or more atoms.

Q: نقطة واحدة * Cast iron is an iron carbon alloy has 0.76 wt.% C to 6.7 wt.% C iron carbon alloy has…

A: Inorganic chemistry.

Concept explainers

Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.

Question

Q,) a compound is found to contain 40 % carbon, 6.7 % hydrogen,
and 53 % oxygen by weight. What is the empirical formula for this
compound? (Where the atomic weight of O is 16 and for H is 1 and
for C is 12)
Qs) who many allotropes does carbon element has? Which is harder?

Expert Solution

This question has been solved!

Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.

This is a popular solution!

SEE SOLUTION Check out a sample Q&A here

Step 1

VIEW

Step 2

VIEW

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 2 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, chemistry and related others by exploring similar questions and additional content below.

Similar questions

Chlorine exists mainly as two isotopes, 37Cl and 33Cl. Which is more abundant? How do you know?
With the advent of techniques such as scanning tunneling microscopy, it is now possible to write with individual atoms by manipulating and arranging atoms on an atomic surface. a. If an image is prepared by manipulating iron atoms and their total mass is 1.05 1020 g, what number of iron atoms were used? b. If the image is prepared on a platinum surface that is exactly 20 platinum atoms high and 14 platinum atoms wide, what is the mass (grams) of the atomic surface? c. If the atomic surface were changed to ruthenium atoms and the same surface mass as determined in part b is used, what number of ruthenium atoms is needed to construct the surface?
Is there a difference between a homogeneous mixture of hydrogen and oxygen in a 2:1 mole ratio and a sample of water vapor? Explain.
What is true about the chemical properties of the product? a. The properties are more like chemical A. b. The properties are more like chemical B. c. The properties are an average of those of chemical A and chemical B. d. The properties are not necessarily like either chemical A or chemical B. e. The properties arc more like chemical A or more like chemical B, but more information is needed. Justify your choice, and for choices you did not pick, explain what is wrong with them.
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.)
By x-ray diffraction it is possible to determine the geometric pattern in which atoms are arranged in a crystal and the distances between atoms. In a crystal of silver, four atoms effectively occupy the volume of a cube 0.409 nm on an edge. Taking the density of silver to be 10.5 g/cm3, calculate the number of atoms in one mole of silver.
Outline the steps needed to solve the following problem, then do the calculations. Ether, (C2H5)2O, which was originally used as an anesthetic but has been replaced by safer and more effective medications, is prepared by the reaction of ethanol with sulfuric acid. 2C2H5OH+H2SO4(C2H5)2O+H2SO4H2O What is the percent yield of ether if 1.17 L (d = 0.7134 g/mL) is isolated from the reaction of 1.500 L of C2H5OH (d = 0.7894 g/mL)?
A reagent occasionally used in chemical synthesis is sodium-potassium alloy. (Alloys are mixtures of metals, and Na-K has the interesting property that it is a liquid.) One formulation of the alloy (the one that melts at the lowest temperature) contains 68 atom percent K; that is, out of every 100 atoms, 68 are K and 32 are Na. What is the mass percent of potassium in sodium-potassium alloy?
An engineer has filed for a patent for a brand new allot to be used in golf club heads. The composition by mass ranges from 25 to 31% manganese, 6.3 to 7.8% aluminum , 0.65 to 0.85% carbon, and 5.5 to 9.0% chromium, with the remainder be8ng iron. What are the minimum and maximum percentages of irom possible in this alloy?