What is the mass in grams of 6.91x 1015 chromium atoms? Put your answer in box in scientific notation with one past the decimal in this format xx*10^-X As always, this may seem like the wrong sig figs, but this is how the formula questions work-I must choose one amount for everybody despite the amount of sig figs Canvas gives you

Q: The density of carbon tetrachloride is 1.59 g/mL. How many chlorine atoms are present in 55 mL of…

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Q: Be sure to answer all parts. How many H atoms are in 31.3 g of isopropanol (rubbing alcohol), C3H3O?…

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Q: A compound is isolated from the rind of lemons that is found to be 88.14% carbon and 11.86% hydrogen…

A: We have to calculate the mass of C and H.

Q: Calculate the mass in grams of 1.23×10241.23×1024 molecules of methanol. The chemical formula for…

A: Given that, the molecules of methanol= 1.23 × 1024 Now, as per Avogadro’s law: 1 mol of methanol…

Q: A friend has some questions about empirical formulas and molecular formulas. You can assume that he…

A: Empirical formula refers to the formula of a compound in which the elements are present in the…

Q: In this quantity of gold? [4.5 9. 64,456 g/mol) in A 55kg woman has 7.5 x 10-3 mol of hemoglobin…

A: The given data contains,  =7.5 ×10-3According to mole concept,1 mole of compound contains 6.022…

Q: How many grams of carbon tetrachloride are in 1.01 x 1024 molecules?

A: Mole concept: The number of molecules or atoms present in the one mole of the substance is equal to…

Q: A chemist decomposes samples of several compounds; the masses of their constituent elements are…

A: Since you have asked multiple questions, we will solve the first question for you. If you want any…

Q: One mole (molecular equivalent) of gold has a mass of 196.9655 g.  One mole of anything equals 6.022…

A: Given : Mass of gold (1 mole)= 196.9655 g  Diameter of gold = 3.58 × 10-10 m Block of gold of mass =…

Q: Vitamin C (ascorbic acid) contains 40.92 % C, 4.58 % H, and 54.50 % O, by mass. The experimentally…

A: Given :-  Percent by mass of C = 40.92%  Percent by mass of H = 4.58 %  Percent by mass of O = 54.50…

Q: Write the six (6) conversion factors (ratios) that you can derive from the relations below: 1 mole…

A: The mathematical entity that is employed to convert the units of a substance from one value into…

Q: Calculate the mass in grams of 1.39x10^24 molecules of methanol. The chemical formula for methanol…

A: We are given 1.39×1024 molecules of ethanol are present and we have to calculate the mass in grams…

Q: a) What is the mass of 2.450 x 10²⁴ atoms of tungsten (# 74)? (Be sure to write your units, chemical…

A: The solution is shown in the image below-

Q: Be sure to answer all parts. How many H atoms are in 77.3 g of isopropanol (rubbing alcohol), C3H3O?…

A: We have to calculate  the number  of H atoms present  in 77.3 g of isopropanol alchol ( C3H8O)

Q: A certain organic compound has the formula C8H13O2. A sample of this compound weighs 5.89 grams.…

A: Mass of C8H13O2 = 5.89 g Molar mass of C8H13O2 = 141.184 g/mol Moles of C8H13O2 =MassMolar mass=5.89…

Q: The number of atoms of sulfur in 32 g of sulfur is 6.022 x 1023 32 3.2 x 1023 32 x 6.022 × 1022

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Q: Using the formula Mn(ClO₄)₄ (MM = 452.74), what is the percent by mass of Mn in the compound?

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Q: What mass in grams (g) of Li3PO4  (MM=115.97 g/mol) is needed to prepare 300. mL of a solution…

A: Given: Lithium ion concentration = 0.148 M MM=115.97 g/mol Volume of solution = 300 mL

Q: The molecular formula for dinitrogen tetraoxide is N,O,. Is this the empirical formula for this…

A: The empirical formula can be defined as the simplest whole-number ratio of all the atoms present in…

Q: You can also calculate percent composition from a formula. This is similar to percent abundance in…

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Q: a) What is the mass, in grams, of 5.000 moles of carbon atoms? b)What is the average mass, in…

A: Since you have posted a question with multiple sub-parts, we will solve the first three sub-parts…

Q: The chemical formula for diethyl amine is: (CH,CH,), NH Calculate the molar mass of diethyl amine.…

A: Atomic mass of carbon : 12.0107 u  Atomic mass of Hydrogen : 1.007844 u  Atomic mass of Nitrogen :…

Q: What is the mass, in kilograms, of an Avogadro’s number ofpeople, if the average mass of a person is…

A: Different units are used to express the volume and mass of substances such as grams, micrograms,…

Q: 212.01) el1.008) Fo-4lo. Potassium manganate is a dark green, crystalline substance whose…

A: The given data contains,       potassium =39.6%      manganese =27.9%      oxygen =32.5%

Q: In an experiment 0.500 g of nickel reacted with air to give 0.704 g of nickel oxide. What is the…

A: Given data,Mass of Nickel=0.500gMass of Nickel oxide=0.704gMass of oxygen=Mass of Nickel oxide-Mass…

Q: the mass, in grams, of 112 atoms of iron, Fe (1 mol of Fe has a mass of 55.85 g).

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Q: The fuel used in many disposable lighters is liquid butane, C4H10. Butane has a molecular weight of…

A: The number of moles for a given chemical species refers to the ratio of mass of the species to that…

Q: A sample of phosphorus weighs 3.8 x 103 ng.  How many phosphorus atoms are present in this sampme?…

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Q: Balance the following chemical reaction. Enter the sum of the balanced coefficients as your answer.…

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Q: Benzene and acetylene have the same empirical formula, CH. However, benzene has a molar mass of…

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Q: Can you provide all the work in detail, as I will be using this to study.

A: Given,Mass of sample = 0.734g.Mass of nitrogen = 0.604g.Mass of hydrogen = 0.734g – 0.604 =…

Q: A compound is 21.20% Nitrogen, 6.06% Hydrogen, 24.30% Sulfur, and 48.45% Oxygen. Write the empirical…

A: Given data,Percentage of N=21.2%Percentage of H=6.06%Percentage of S=24.3%Percentage of O=48.45%

Q: Be sure to answer all parts. Fermentation is a complex chemical process of wine making in which…

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Q: Alex’s mass before getting the tattoo was 61.5 kg.  The tattoo contains 5.20x1023 molecules of iron…

A: Given, Alex’s mass before the tattoo = 61.5 kg  tattoo contains 5.20x1023 molecules of Fe3O4

Q: What is the molar mass for aluminum sulfate?

A: Number of moles = mass/molar mass  So, mass = moles × molar mass

Q: Be sure to answer all parts. How many H atoms are in 84.9 g of isopropanol (rubbing alcohol), C3H,0?…

A: We have to calculate the number of H atoms in 84.9 g of isopropanol.

Q: How many ions are there in 0.042 mole of Ti(CO3)2 formula units?Place your answer in the box using…

A: 1 mole of Ti(CO3)2 can produce 3 mole ions (1 mole Ti4+ and 2 mole CO32-).

Q: How many chloride atoms are in 32.3 g of CaCl2?

A: Since you have posted multiple questions, we are entitled to answer the first only. Please repost…

Q: Samples of several compounds are decomposed and the masses of their constituent elements are shown…

A: Calculate moles of each element by dividing the given mass by their molar mass & convert them…

Q: Welders use helium (He) and argon (Ar) gases to blow over the metal during the welding process.  Why…

A: Note: Since you have asked multiple questions, we will solve the first question for you. If you want…

Q: An organic compound was found to contain 54.5% C, 9.2% H, and 36.3% O.  a. What is the empirical…

A: Percentage of carbon = 54.5 %          Percentage of H =   9.2 % Percentage of oxygen = 36.3 % Mole…

Q: A combustion analysis is a technique to find the the empirical formula of compounds. In a combustion…

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Q: A 6.40 g sample of a compound is burned to produce 8.37 g CO, 2.75 g HO, 1.06 g N, and 1.23 g SO.…

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Q: How many molecules are contained in each of the following? (Please enter your answers in scientific…

A: Given information: Moles of S8 = 2.36 mol Moles of ammonia = 0.617 mol Grams of C2H5OH = 18.6 g…

Q: Imagine that all our balances displayed mass in units of slugs instead of grams. Would we still…

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Q: Use the References to access important values if needed for this question. Mn, S O, n H20 is the…

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Q: 4. A sample of acetic acid has 4.22x1024 molecules. How many grams of hydrogen are present?

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Q: What coefficients would you need to balance the following equation, just put the coefficients in the…

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