Question

DQuestion 3 1 pts How could you measure 3 moles of water? by measuring out 18.0098 mililiters of water in a graduated cylinder by measuring 54.0294 grams of water by measuring 18.0098 gram of water by measuring out 54.0294 mililiters of water in a graduated cylinder D Question 4 1 pts How many molecules are there in 29.777 grams of hydrogen peroxide? 52701 x 1023 molecules of hydrogen peroxide 29.777 x 103 molecules of hydrogen peroxide 0.876 x 1023 molecules of hydrogen 179317 x 1023 molecules of hydrogen peroxide peroxide

Answer 1

Calculating Numbeo Moles: . Mole:s is defined as the ya tid of the mass to the molar mass mass (m) Moles (n)? Molar mass (M) . Mass in Sram lor) Kilogvam Molar Hass in gram/mole or) kilosram/mo le 'Mass ỉs defined as the number of moles of the substance multiplied by the molar mass the substance Mass Cm) F moles (n) x Molar Mass (iM) Molar Mass is defined as the ratio of the the substante the mo les o mass (m) mo les (n) mass of the Subs tance to Molav Mass (M)

Solulion: Question:3: oCo uld you measure 3 mo les of wate> water 3mol Molesof of u, a te Y 18.023 Mo laY Mass mol Massoょwater moles of water x molą, 54 .06 by m ea Surini 5 4.0214 Jrams of water Ques t ion:4: Hz02 - 29.777 g. Molar Mas s of H202- Moles D - 29.777 3 4 0147 Hmol - 0.3754 mo H202 23 = 0.9754 ngr. H202 H20i mヅ 23