Answer:
Adding salt to the water increases the density of the solution because the salt increases the mass without changing the volume very much. When you add table salt (sodium chloride, NaCl) to water, the salt dissolves into ions, Na+ and Cl-. The volume increases by a small factor, but the mass increases by a bigger factor.
Explanation:
To solve this problem we use Boyle's law to correlate the varying volume and pressure at constant temperature. Assuming ideal gas law, we use the equation P1/V1= P2/V2. Substituting, 735 mm Hg/ P2= 63.5 ml/69.2 ml. P2 is equivalent thus to 800.97 mm Hg.
<span>Prior to calculating the volume of gaseous reactants or gaseous products you must first assume they are an ideal gas and make sure it is applicable. Assuming they are an ideal gas will help simplify calculations. You can just use the ideal gas equation.</span>
PCL5[l]+4H2O=H3PO4+5HCL
CHECK;
on the L.H.S
P=1
CL=5
H=8
O=4
On the R.H.S
P=1
CL=5
H=8
O=4
Answer:
Explanation:
We will need a balanced chemical equation with masses and molar masses, so, let's gather all the information in one place.
MM: 142.04 233.29
Ba²⁺ + Na₂SO₄ ⟶ BaSO₄ + 2Na⁺
m/g: 27.4
(a) Moles of Na₂SO₄
(b) Moles of BaSO₄
(c) Mass of BaSO₄