Question

How many grams of Cr is there in 85 g of Cr2S3? [Cr=52 u, S=32 u]

Answer 1

Answer:

0.85

Explanation:

step by step explanation in photo.

Answer 2

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ᴛʜᴇ ᴍᴏʟᴀʀ ᴍᴀss ᴏғ ᴛʜᴇ ᴄᴏᴍᴘᴏᴜɴᴅ ɪs 104+96=200ɢ, sᴏ ᴛʜᴇ ɴᴏ ᴏғ ᴍᴏʟᴇs ᴏғ ᴄᴏᴍᴘᴏᴜɴᴅ ɪs 85/200. ɪɴ ᴏɴᴇ ᴍᴏʟᴇ ᴏғ ᴄᴏᴍᴘᴏᴜɴᴅ, ᴛʜᴇʀᴇ ᴀʀᴇ 2 ᴍᴏʟᴇs ᴏғ ᴄʀ. sᴏ, ɪɴ 85/200 ᴍᴏʟᴇs ᴏғ ᴄᴏᴍᴘᴏᴜɴᴅ ᴛʜᴇʀᴇ ᴀʀᴇ 85/100 ᴍᴏʟᴇs ᴏғ ᴄʀ ᴡʜɪᴄʜ ɪs 0.85 ᴍᴏʟᴇs.