The KOH is used to remove carbon dioxide by the following reaction:
KOH + CO2 KHCO3 What mass of KOH produces 235 g of KHCO3

131.86g

Explanation:

KOH + CO2 => KHCO3

Molar mass of KHCO3 = 100.115g/Mol

No of mole = 235/100.115 = 2.35mole

1mole of KOH will give 1 mole of KHCO3

Xmole of KOH will give 2.35mole of KHCO3

X= 2.35mole of KOH

No of mole of KOH = mass/molar mass

2.35= mass/56.11

Mass= 131.86g

Like all substances, helium molecules expand when you heat them. They are already less dense than air (this is why helium balloons float in the air), and heat makes them even denser. ... When the gas molecules fly around in different directions, they collide with other objects and create pressure. Helium expands in the heat. Warm or hot temperatures can bring balloons down faster than their proper float time and may result in popping. DO NOT TO PUT BALLOONS INTO A HOT CAR OR LEAVE BALLOONS IN A HOT PARKED CAR. Due to our proximity to the beach, wind is another weather factor to look out for.