Question

find the molecular mass of cow + h2o ?​

Answer 1

Explanation:

Match the statements 1 to 5 with their answers from A to E. A: Anode B: Ammonia C: Mg2+ D: Sucrose solution E: Electro metallurgy.

i. A compound which ionizes in solution state but not in gaseous state.

ii. A compound containing molecules only.

iii. The ion which accepts electrons from the cathode and gets reduced to neutral atom.

iv. An application of electrolysis in which anode does not generally diminish in size.

v. The electrode to which the cyanide ions of aq Na[Ag(CN)2] migrate during electrolysis.

Answer 2

Answer:

$CaO+H2O→Ca(OH)2</p><p></p><p></p><p>$

ᴏɴᴇ ᴍᴏʟᴇ ᴏꜰ ᴄᴀᴏ ᴡɪʟʟ ɢɪᴠᴇ ᴏɴᴇ ᴍᴏʟᴇ ᴏꜰ ᴄᴀʟᴄɪᴜᴍ ʜʏᴅʀᴏxɪᴅᴇ.

ᴛʜᴇ ᴍᴏʟᴀʀ ᴍᴀꜱꜱ ᴏꜰ ᴄᴀʟᴄɪᴜᴍ ʜʏᴅʀᴏxɪᴅᴇ ɪꜱ

$74.1g/mol370g=5.0  moles.</p><p></p><p>$

$CaO+H2O→Ca(OH)2</p><p></p><p></p><p>$

40.1+2(16+1)=74.1ɢ/ᴍᴏʟ. 

370 ɢʀᴀᴍꜱ ᴏꜰ ᴄᴀʟᴄɪᴜᴍ ʜʏᴅʀᴏxɪᴅᴇ ᴄᴏʀʀᴇꜱᴘᴏɴᴅꜱ ᴛᴏ

ʜᴇɴᴄᴇ, 5.0 ᴍᴏʟᴇꜱ ᴏꜰ ᴄᴀᴏ ᴀʀᴇ ʀᴇQᴜɪʀᴇᴅ  ᴛᴏ ʀᴇᴀᴄᴛ ᴡɪᴛʜ ᴀɴ ᴇxᴄᴇꜱꜱ ᴏꜰ ᴡᴀᴛᴇʀ ᴛᴏ ꜰᴏʀᴍ 370 ɢʀᴀᴍꜱ ᴏꜰ ᴄᴀʟᴄɪᴜᴍ ʜʏᴅʀᴏxɪᴅᴇ.

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