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What mass (in g) does 0.990 moles of Kr have? asked Jul 17, 2019 in Chemistry by Andrea. A. 83.0 g B. 240119 g C. 52.8 g D. 240 g E. 35.6 g. general-chemistry; 0 Answers. 0 votes. answered Jul 17, 2019 by cutejolin . Best answer. Answer: A 0 votes. answered Jul 17What mass (in g) does 3.99 moles of Kr have. 334g. How many Li atoms are contained in 97.9 g of Li. 8.49 × 10^24 Li atoms. Calculate the mass (in ng) of 2.33 x 1020 atoms of oxygen. 6.19 × 10^6 ng. Why do the isotopes of the same element have the same atomic size?Convert the volume of the water to its mass, assuming that the density of pure water is 998 kg/m³: m = 6 l * 998 kg/m³ = 0.006 m³ * 998 kg/m³= 5.988 kg. It's easier to work with grams, so convert the mass: 5.988 kg = 5988 g. As you already know how the grams to moles conversion work, find the number of moles: n = 5988 g / 18.015 g/mol = 332What mass (in grams) does 3.99 moles of Kr have? 334 g. How many moles are un 2.16 x 10^24 atoms of lead? 3.59 moles. How many iron atoms are contained in 354 g of iron? 3.82 x 10^24 Fe atoms. Who determined the charge of an electron? Millikan.What Mass (In G) Does 3.99 Moles Of Kr Have? What Mass (In Mg) Does 2.63 Moles Of Nickel Have? What Is The Mass In Grams Of 5.40 Moles Of Lithium? How Many Grams Of A 23.4% By Mass Naf Solution Is… How Many Moles Of Ammonia Are Needed To React… How Many Moles Of Carbon Are In 3.5 Moles Of Calcium… How Many Moles Of Co2 Are In 870 Ml Of A

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1.33 g O:1 g C and 2.66 g O:1 g C. C) Two different samples of table salt are found to have the same ratio of sodium to chlorine. D) The atomic mass of bromine is found to be 79.90 amu.What mass (in g) does 7.98 moles of Kr have? asked Sep 20, 2016 in Chemistry by Rebel. A) 668 g B) 952 g C) 422 g D) 480 g E) 288 g. general-chemistry; 0 Answers. 0 votes. answered Sep 20, 2016 by lavalady . Best answer. A 0 votes. answered Sep 20, 2016 by Fatboyslim. Props to you, cheers.Problem: What mass (in kg) does 4.77 moles of nickel have? A) 0.280 kgB) 0.632 kg C) 0.352 kg D) 0.820 kg E) 0.122 kg. FREE Expert Solution. We are asked to get the mass (in kg) of 4.77 moles of nickel. In order to get the mass of Nickel (Ni), we shall use its number of moles and molar mass.3,99 moles of Kr is equal to 334,354 g. How many moles of Kr are contained in 398 mg of Kr?

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What mass (in g) does 3.99 moles of Kr have? A) 334 g B) 476 g C) 211 g D) 240 g E) 144 g Nov 05 2020 10:55 AM. Expert's Answer. Solution.pdf Next Previous. Related Questions. Consider a situation in which 211 g of P4 are exposed to 240 g of O2 A-What is the maximum number of moles of P2O5 that can theoretically be made from 211 g of P4 andQuestion: What Mass (in G) Does 3.99 Moles Of Kr Have? A) 334 G B) 476 G C) 211 G D) 240 G E) 144 G. This problem has been solved! See the answer. How is the answer A? Show transcribed image text. Expert Answer 100% (17 ratings) Previous question Next question Transcribed Image Text from this Question.The molecular formula for Krypton is Kr. The SI base unit for amount of substance is the mole. 1 grams Krypton is equal to 0.011933459032435 mole. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between grams Krypton and mole. Type in your own numbers in the form to convert the units!Question 7 of 25 4.0/ 4.0 Points What mass (in g) does 3.99 moles of Kr have? E. 334 g Feedback:See Chapter 3 Question 8 of 25 4.0/ 4.0 Points An atom of bromine has a mass about four times greater than that of an atom of neon. Which choice makes the correct comparison of the relative numbers of bromine and neon atoms in 1,000 g of each element? B.The molar mass of atoms of an element is given by the standard relative atomic mass of the element multiplied by the molar mass constant, 1 × 10−3 kg/mol = 1 g/mol. The molar mass of a compound is given by the sum of the standard atomic weight (namely, the standard relative atomic mass) of the atoms which form the compound multiplied by the

Question:

What mass (in g) does 3.99 moles of Kr have?

Molar Mass:

In chemistry, the mole represents a certain amount of atoms or molecules for a given substance. The mole, on the other hand, just like with the number of atoms, cannot be without delay measured. One can, then again, measure a mass directly. So, to experimentally determine the quantity of moles of a substance, one method is to measure its mass. The measured mass may also be transformed to an equivalent number of moles by using the molar mass of a substance, which is the mass of a substance when one mole of it's accrued.

Answer and Explanation:

Given:

eq\displaystyle n = 3.99\ mol /eq is the number of moles

To decide the an identical mass of this given number of moles, we will have to use the molar mass of Kr. The molar mass will also be retrieved from the periodic table. For Kr, that is:

eq\displaystyle M = 83.798\ \fracgmol /eq

To decide the an identical mass, we multiply our quantities:

eq\displaystyle m = 3.99\ mol \left(83.798\ \fracgmol \right) /eq

We cancel like devices:

eq\displaystyle m = 3.99\ \requirecancel\cancelmol \left(83.798\ \fracg\requirecancel\cancelmol \right) /eq

Therefore,

eq\displaystyle \boxedm = 334.35\ g /eq

Lesson 2 Quiz.docx - Question 1 Of 25 4.0 Points How Many

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Question 12 What Mass In G Does 399 Moles Of Kr Have

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