The mass of bismuth carbonate that decomposed is **0.445 g**

**calculation**

write the equation for reaction

that is Bi2(CO3)3 → Bi2O3 +3 CO2

find the moles of of CO2 formed

At STP 1 mole of a gas = 22.4 L

what about 50 Ml

convert the Ml to Liters = 50/1000= 0.05 L

moles of CO2 formed is therefore= 1 mole x 0.05 L/22.4 l =2.232 x10^-3 moles

by use of reacting ratio between Bi(CO3)3 to CO2 which is 1:3 the moles of Bi(CO3)3 is = 2.232 x10^-3 x1/3= 0.744 x10^-4 moles of Bi(CO3)3

mass of Bi(CO3)3 = molar mass x number of moles

mass= 0.744 x10^-4 moles x 597.99 g/mol = **0.445 grams**

**Answer:**

B) atmosphere cuz when water is evaporated it goes to the atmosphere

They are different and unique from the other statea of matter.

plasma is different from a gas, because it is made up of groups of positively and nagatively charged particles. In neon gas, the electrons are all bound to the nucleus

The ideal gas law may be written as

where

p = pressure

ρ =density

T = temperature

M = molar mass

R = 8.314 J/(mol-K)

For the given problem,

ρ = 0.09 g/L = 0.09 kg/m³

T = 26°C = 26+273 K = 299 K

M = 1.008 g/mol = 1.008 x 10⁻³ kg/mol

Therefore

Note that 1 atm = 101325 Pa

Therefore

p = 2.2195 x 10⁵ Pa

= 221.95 kPa

= (2.295 x 10⁵)/101325 atm

= 2.19 atm

Answer:

2.2195 x 10⁵ Pa (or 221.95 kPa or 2.19 atm)

**Answer:**

A

**Explanation:**

Osmosis is when water moves from an area of LOW solute concentration (low osmolarity) to an area of HIGH solute concentration (high osmolarity) through a semipermeable membrane