General Chemistry Answers

Why alkali metal does not react with carbon

Determine the mass (in g

g) of each sucrose solution that contains 19 g

g of sucrose.

4.6 %

% sucrose by mass  = g

3.4 %

% sucrose by mass  = g

12.3 %

% sucrose by mass = g

Why do pressure cookers save time in the kitchen? Explain the effect of pressure on boiling point

Based on the World Health Organization (WHO), adult ages 11 and above are ONLY

allowed to intake no more than 6g of salt per day. Now, humans love to eat food with strong

taste thus we developed food seasonings. On average, an 8g pack of food seasoning

contains 22% salt (let us assume this is in the form of NaCl), with a serving option of 4g per

dish.

Calculate the equivalent number of moles of salt per serving?

Note: The molar mass of Sodium Chloride is 58.44 g/mol

A solution is prepared by dissolving 10.00 g sucrose (MM of sucrose = 343 g) in 50g of water. The volume of the resulting solution is 52 mL. Calculate the following

A. molarity

B. molality

C. mole fraction

predict the formula for the selenate ions

How much ethanol is produced from the starting material of 987.1 Grams of glucose?

When SO₂(g) reacts with O₂(g) according to the following reaction, 98.9 kJ of energy are evolved for each mole of SO₂(g) that reacts. Complete the following thermochemical equation.

• 2SO₂(g) + O₂(g)2SO₃(g)    H =  kJ

What are the freezing point and boiling point of a solution that contains 5 g glycerol (  and 20 mL of water? 

In most of my homework, I found that the number of relative atomic mass RAM is the same as the molar mass. So, I'd like to ask whether...

1. RAM and molar mass are the same thing?
2. If no, why do they appear alike all the time?
3. and what are the differences between them?