anonymous _25

This page lists questions and answers that were posted by visitors named anonymous _25.

Questions

The following questions were asked by visitors named anonymous _25.

number of moles in 8200g of iron

the number of moles in 6.022*10^24 atoms of cobalt

8.00 grams of calcium chloride CaCl^2 to is dissolved in 1.000KG of water. Assume that the ionic compound CaCl^2 t separates completely into Ca^2+ and Cl^-. when it dissolves in water. How many moles of each ion are present in the solution.

When the ionic compound NH4Cl dissolves in water, it breaks into one ammonium ion, NH+4. And one chloride ion, CL -, if you dissolve 10.7 gram of NH4Cl in water, how many moles of iron will be in the solution.

the density of liquidwater is 0.997g/mlat 25 degree Calculate the massof 250ml of water

calculate the mass of 8.22*10^23 atoms of rubidium

One mole of N2 molecules.

Calculate the number of atoms in 3.227*10 ^10mol of potassium

What is the volume of a 0.1 M HCL solution containing one 1.46GM of HCL?

How many grams of NaCL are required to prepare 100ML of solution of 1M NaCl?

Convert 0.0035 NaCl by mass into parts per million of NACL.

Calculate the molarity of a solution prepared by dissolving 125ML of pure methanol, CH3OH ( density = 0 .791 gram / mole.) into 275 ml of ethanol.

on complete combustion a gaseous hydrocarbon produces3.38g of CO2 and 0.690g of H2O and no other products. find the empirical formula of hydrocarbon

valency of astatine

valency of osmium

An aqueous solution is. 1.33 molal in methanol. Determine the mole fraction of methanol and water.

All chemist. weighs A cylinder Of compressed oxygen O2. And finds that it Has a mass of 102 7.8 gram. After some of the oxygen is used in an experiment. The cylinder has the mass of 102 3.2 grams. How many moles of oxygen gas are used in the experiment

Suppose that you could decompose. 0.250. Mall of AG2S into it. element. How many moles of silver do you have? And how many moles of Sulfur. will you have?

The total number of items in 8.5 grams of NH 3 is.

In 1.71 gram of sugar find the number of. carbon. Atoms added.

In 1.71 gram of sugar (C12H22O11) find the number of. carbon. Atoms added.

mass of 12*10^24 atoms of hydrogen

A body moving with an initial velocity of 2 meter per second accelerates uniformly at 0.5 meter per second square. What is its velocity? 10 seconds after start.

The correct sequence, which shows decreasing order of the ionic radii Off the element is. option A. AL 3 plus.> MG2 plus.> N A Plus.> F -.> O 2 -. option B N A +> MG, 2 plus >AL, 3 +> O, 2 ->. F, -. option c. N a +> F, - >MG, 2 +> O, 2 -,> Al3 +. Option D...

When breaks are applied to a racing car, traveling at 180 kilometer per hour. it stops after traveling for 4 seconds. What is. the distance covered between their instance.

Answers

The following answers were posted by visitors named anonymous _25.

ammonium sulfate {nh4}2so4 50 kg =50000g mass of [ nh4]2so4 =132 n=378.7878

explain me in more detail

so we are assuming 0.0072 moles are of calcium when it dissolves and same for chloride

do u know jokes

How many moles are in 453.6 gram of Sucrose C12H22O11

i already did this sum I just wanted to check my answer

how well do u know me

Do you think I am weak in chemistry?

i a I'm trying best to do what I I'm not able to.

How many moles are in 1.000pound of NACL.

what will be the answer if we take 1.000 pound as 453.6g

and if we take molecular mass 58.44~58 then what would the answer be

My answer is correct again.

while removing the molar mass N= neon , so the mass of neon is approx 20 so why did u wrote 14

but the mass of nh4cl by my calculation is approx 59 NH4Cl =20 +4+35 =59

how did u get 0.2 moles

Number of moles of 2.41 * 10^20. Atoms of chromium.

can u show me proper calculation of Number of moles of chromium = (2.41 × 10^20) / (6.022 × 10^23) plzzz

i still did'nt understood

i under stood every thing accept this calculation Number of moles of chromium = (2.41 × 10^20) x (1 / 6.022 × 10^23)

how many moles of water are in 250mml of water

Calculate the volume that would be occupied by two. By 2. 000 moles of water at 25 degree Celsius.

All chemists weighs are steel cylinder of compressed oxygen O2 and find that it has masss of 1027.8 grams. After some of the oxygen is used in an experiment, cylinder has a mass of 1023.2 grams. How many moles of oxygen gas are used in the experiment.

Calculate Number of atoms in 0.0082 gram of gold.

calculate no. of atoms

and for 8.22*10^23 mol of rubidium

Calculate the mass of 9. 96 * 10^ 26 atoms of tellerium

Find number of atoms of carbon present in 24G of carbon

Find number of atoms In 17.0. Mol of Germanium

Calculate the number of atoms in 0.0082 gram of gold.

Find mass of. H atomms. Present in 32g Methane. CH4.

What is the volume of a 0.2 M AgNO3 solution containing 8.5 grams of AgNO3

How many grams of NaCl are required to prepare 100ML of a solution of 1M NaCl?

Explain in detail

Explain me the answer of this question in more detail.

molecular formula=

valenc electrons

answer by dx/dy rule

Calculate the masses of. AG2. and sulfur. Produced.

Arrange the following in increasing order of ionic retire. C 4 -. N 3 -. F -. O 2 -.

The symbol and iupac name for the element with atomic number 120 respectively, are.

The correct order of ionization energy for carbon nitrogen. and oxygen atom is.

Add 80 meter per second is break so as to produce a retardation of four meter per second square. After what time will its speed be? 40 meter per second and what will be the distance traveled during this time?

A Car traveling at 80 meter per second. is break so as two. produce a retardation of 4 meter per second square. After what time? will its speed be 40 meter per second? And what will be the distance traveled during this time?