Nov 5, 2016 · The molecular weight of anhydrous sodium carbonate is 106 and the molecular weight of water is 18. Therefore, the formula for the molecular weight of N a2CO3XH 2O is …

Apr 23, 2018 · Your unknown gas is ethane and its molecular formula is C_2H_6. So, you know that you're dealing with a hydrocarbon, which is a compound that contains only carbon and …

A circle has a radius of 6 cm. What is its circumference? What is the area of a circle with a radius of 3 cm? How do you solve #x^2+3x+2=0# using the quadratic formula? How do you …

How does buffering a solution change the solutions behavior? How does Benedict's solution change colour? Describe how would you prepare 1 L of a 1 M solution of sodium chloride. The …

mass of Hydrogen = number of mols x Molecular Weight = 0.0002 x 1 = 0.0002g (x 1000 to give in mg) = 0.2mg Combined mass of Carbon and Hydrogen = 0.9mg + 0.2mg = 1.1mg Therefore, …

Yes, the work done is zero in both cases. I assume the weights are carried horizontally. Since they do not gain any altitude, they have not gained any gravitational potential energy. …

Explanation: To calculate the molar mass of a compound, multiply the subscript of each element from the formula times the molar mass of the element. The molar mass of an element is its …

Jan 7, 2018 · 1.3 * 10^(23) "formula units" For starters, it's worth pointing out that you're not dealing with molecules of iron(III) fluoride here because this compound is ionic. So a more …

For this solution we will use the formula F_1d_1 = F_2d_2 Where Force times the distance of one side of the lever must equal the combination of the Force and distance applied on the opposite …

When 2.5kg weight of hero's hand hits the villain of 80kg,in a movie,the villain moves with 12.5ms-1 and hits a transformer near by.what will be the speed of hero's hand compared to bullet fired …