77 Answered Questions for the topic Moles

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Help me solve this question

State the equality: how many moles of uranium are in 41.34 grams of uranium?

06/21/19

What is the maximum Mass that can be produce from a mixture of 2.00*10³g N2 and 8.00*10⁴g H2

How can will find the maximum Mass of ammonia

02/27/19

How many grams of nitrogen are there in a sample of nitrogen that contains 4.0 moles of nitrogen atoms?

Plz help this is due tomorrow and I keep getting stuck on this problem !!!

09/11/18

Molarity Written Response

Angelica made 100mL of a 3.5M salt solution. She wanted to dilute this solution to make 100mL of a 2.1M solution. She calculated that she needed 60mL of her stock solution. She added the 60mL to... more

08/09/18

when you have an equation and you are doing moles.. do you add the number infront of the compund(balancing) for the rmm

i just got confused when you are doing a calculation and there is the balancing do you multiply the coumpound ram by the number?

05/06/18

Calculating mole fraction in a gas mixture

A 6.00 L tank at 9.9 C is filled with 8.35 g of carbon monoxide gas and 13.0 g of sulfur hexafluoride gas. You can assume both gasses behave as ideal gasses under these conditions. Calculate the... more

05/06/18

Calculating mole fraction in a gas mixture

A 8.00 L tank at 28.5 C is filled with 19.2 g of carbon dioxide gas and 8.08 g of carbon monoxide gas. You can assume both gasses behave as ideal gasses under these conditions. Calculate the mole... more

05/05/18

Calculating mole fraction in a gas mixture

a 6.00 L tank at -28C is filled with 5.35 g of sulfur hexafluoride gas and 2.54g of sulfur tetrafluoride gas. You can assume both gasses behave as ideal gasses under these conditions. Calculate the... more

05/03/18

What is the volume of 2.3 mol sample of Fluorine at STP?

What is the volume of 2.3 mol sample of Fluorine at STP?

04/24/18

how many mL of a 0.350 M LiOH solution contains 0.0171moles of LiOH

how do you get started, with what formula? 

03/07/18

What is the formula for Barium oxide?

Formula for Barium oxide?  

03/06/18

Do moles change with volume?

Does increasing or decreasing volume change the moles in a solution, or does that just affect the concentration?   If I have 0.035711 moles in 100mL and I'm asked how many moles in 5mL of this... more

02/28/18

How many moles of molecules are in 1 million molecules of Potassium cyanide?

i need help

12/18/17

Write a balance chemical reaction for this and explain why this words using the solubility tables

Vinegar (C2H4O2) is added to kettle to remove lime (CaCo3) bulid up 

12/06/17

Can someone help me with Mole Conversion?

I'm struggling to understand on how to do this, I'm currently trying to use dimensional analysis to solve the problems, please help.   1. What is the mass of 12.5 moles of silicon?   2. How... more

11/28/17

Empirical & Molecular formulas of compounds

Cannizzaro determined that a certain compound of carbon and oxygen had a molecular mass of 44.0 u. This meant that a certain volume of this gaseous compound weighed 44.0 times as much as the same... more

11/20/17

Determine the number of chromium atoms in 46.2 gram of chromium oxide

Formula is Cr2O3

11/14/17

determine the mass of each sample

1.16 mmol carbon disulfide

11/14/17

determine the mass of the sample

1.48 mol carbon tetrafluoride 

11/12/17

how many moles of oxygen are in 6.23 moles of Cr(C2H3O2)3?

please show your work so i can understand. 

11/12/17

moles chemistry question

How many moles of gold atoms do 4.50x10^24 gold atoms constitute?

11/10/17

Solving mole calculations with equations

Magnesium and hydrochloric acid react to form magnesium chloride and hydrogen gas. Calculate the volume of H2 (g) produced at rtp when 4.8g Mg reacts with HCl. (Mg=24)

11/08/17

One of the reaction involved in formation of rust on your car involves iron solid reaction with water and oxygen to form iron (111) hydroxide

a how many iron atoms reacted b how much iron (111) hydroxide could be formed 45 g sample of iron was used

11/08/17

Stoichimetry

iron, water and oxygen reacts to make iron lll hydroxide   a) how many  iron atoms reacted b) how much iron lll hydroxide could be formed (grams)
1 3 4

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