Question

ᴀ ꜱᴩᴀᴛɪᴀʟ ᴏʙᴊᴇᴄᴛ ɪꜱ ᴏʙꜱᴇʀᴠᴇᴅ ꜰʀᴏᴍ ᴛᴡᴏ ᴩᴏɪɴᴛꜱ ᴀ ᴀɴᴅ ʙ ᴀᴛ ᴇᴀʀᴛʜ.ᴛʜᴇ ᴀɴɢʟᴇ ʙᴇᴛᴡᴇᴇɴ ᴛᴡᴏ ᴏʙꜱᴇʀᴠɪɴɢ ᴅɪʀᴇᴄᴛɪᴏɴ ɪꜱ 2.9×10^-4ʀᴀᴅ.ɪꜰ ᴅɪᴀᴍᴇᴛᴇʀ ᴏꜰ ᴇᴀʀᴛʜ ɪꜱ 1.28×10^4 ᴋᴍ ᴛʜᴇɴ ᴅɪꜱᴛᴀɴᴄᴇ ʙᴇᴛᴡᴇᴇɴ ᴇᴀʀᴛʜ ᴀɴᴅ ᴏʙᴊᴇᴄᴛ ɪꜱ?​

Answer 1

Mass (solute) = 40 gram

Mass (solute) = 40 gram

Mass (solvent) = 320 gram

Mass (solution) = Mass (solute) + Mass (solvent)

= 40 gram + 320 gram

= 360 gram

∴ Mass % (solution) = [ Mass (solute)/Mass (solvent)] × 100

= [40/360] × 100

= 11.1 %

Answer 2

myself ɑɑlmin from C. G rɑipur!!

myself ɑɑlmin from C. G rɑipur!! nice to meet you!!